ENCLOSURE 1 

INFORMATION COLLECTION REQUEST FOR 

· FERROALLOYS PRODUCTION 

MANUFACTURING EMISSIONPOINTS 

The Environmental Protection Agency's (EPA) Office of Air and Radiation (OAR) is conducting 

this information collection request to assist the EPA Administrator in developing emission 

standards for Ferroalloys Production Manufacturing Emission Points under Clean Air Act (CAA) 

section 112. The survey is being sent under the authority of Section 114 of the CAA. 

BACKGROUND: 

Please complete this information request for operations that comprise ferroalloys production at 

each facility operated by your company and located within the United States. The ferroalloys 

production source category includes any facility engaged in producing silicomanganese or 

ferromanganese. Ferroalloys production includes, but is not limited to, the following unit 

operations: ore unloading, ore storage, sintering, crushing, weigh-feeding, smelting, tapping, 

casting, screening, metal oxygen refining, and ladle treatment or ladle raking. 

CAA section 114(a) states that the Administrator may require any owner or operator subject to 

any requirement of this Act to: 

(A) Establish and maintain such records; (B) make such reports; (C) install, use, and maintain 

such monitoring equipment, and use such audit procedures, or methods; (D) sample such 

emissions (in accordance with such procedures or methods, at such locations, at such intervals, 

during such periods, and in such manner as the Administrator shall prescribe); (E) keep records 

on control equipment parameters, production variables or other indirect data when direct 

monitoring of emissions is impractical; (F) submit compliance certifications in accordance with 

section 114(a)(3); and (G) provide such other information as the Administrator may reasonably 

require. 

There are two main components to this CAA section 114 information collection request. The 

first component of the information collection involves a short survey requesting information on 

your existing and planned processes. The second component requires owners to conduct stack 

testing. The testing requirements are mentioned in the cover letter of this packet (CAA section 

114 letter) and described in more detail in Enclosure 2. 

1 
DIRECTIONS: 

All recipients must complete and return Enclosure 1 by March 30, 2013. 

X Please answer all questions unless not applicable to your facility or operations, in which 

case note that the question is not applicable. All information should be for the 2012 

reporting year (unless otherwise noted). 

X Please identify clearly any response(s) that you consider to be confidential business 

information (CBI). Any responses not so identified will be included in a publicly 

available database. Refer to Enclosures 3, 4, 5, and 6 for more information on the 

treatment of CBI and a list of information you may be asked to submit later to 

substantiate a claim of confidentiality. Please do not label an entire response 

"confidential" if only certain portions consist of trade secret information. If you 

wish, you may submit a confidential and a non-confidential version. 

To avoid duplicate data and ensure that all data for a particular facility is consolidated, please 

submit all of the data requested from your facility in the same manner. To submit your data, mail 

a CD or DVD containing an electronic copy of all requested files to the EPA address below: 

U.S. Environmental Protection Agency 

Office of Air Quality Planning and Standards 

U.S. EPA Mailroom (D243-02) 

Attn: Mr. Conrad Chin 

109 T.W. Alexander Drive 

Research Triangle Park, NC 27711 

If the process data or other information you are providing is considered confidential, please 

create a separate CD or DVD containing only the confidential portion of your data or prepare a 

copy of the hard copy materials containing only the pages that include the information you 

consider confidential. Clearly mark the disk and/or materials with the words "Confidential 

Business Information." Send these confidential files under separate cover to the attention of Mr. 

Roberto Morales at the following address: 

U.S. Environmental Protection Agency 

Office of Air Quality Planning and Standards 

U.S. EPA Mailroom (C404-02) 

Attn: Mr. Roberto Morales, Document Control Officer 

109 T.W. Alexander Drive 

Research Triangle Park, NC 27711 

For the security of your data, EPA recommends sending your confidential files to Mr. Morales 

via Registered U.S. Mail using return receipt requested, Federal Express, or other method for 

2 
PLEASE RETURN THIS SURVEY NO LATER THAN MARCH 30, 2013 

CONFIDENTIAL BUSINESS INFORMATION (CBI): 

Please indicate if any CBI is included in this survey response: •Yes ONo 

PART I. OWNER INFORMATION 

1. NameofLeg~Ownu:~E~~~D~~~~~T~S~A~~~~~~~~~~~~~~~~~ 

a. Address: /il7b,£ l?l!leYI/JeLt) 

b. City: .Marie& 

c. State: ---=0-Lh.l.....j,U.o~~~-~~~--~-~~~---~---~-

d. Zip: 1/.fZff; 

e. County: WashiDJTiiO 

2. Complete street address of facility (physical location): 

a. Address: Jb 10.1- SiB£ /?oule. 7 Sourh 

b. City: 

c. State: Oh/o 

d. Zip: 

e. County: 

3. Mailing Address (if different from Facility Street Address): 

a. Address: P 0 . 15oz: A. 99 

b. City: .A{ar/el& 

c. State: _ _!.O~hlLi...!.::!o:....___~-------~----~-~---~-

d. Zip: usz.ro 

e. County: ~iJ?1lorl 

4 
I 

4. Facility Contact: 

a. Name (First/Last): Joho Jlupk.s 

b. Title: £nJI Eay/neeY 

.c. Telephone Number: ( ) 7fo .3 71/ /.3/,/p Ext -------

d. Fax Number: ( ) Zf/0 37¢-1:30,£ 

e. E-mail: Jobo.lz~r li erli02tfljY'I21..lj2• cpm 

5. Facility Description: 

a. Number of Facility Employees: 

Number of employees associated with ferroalloy production operations at the facility (answer 

may be given using the following ranges: 0-100; 101-250; 251-500; 501-750; 751-1,000; 

1,001-1,500; and >1,500). Include temporary employees if they are a significant fraction of 

your total number of employees. 

b. Number of Corporate Employees: 

Approximate number of employees of the business enterprise that owns this plant, including 

where applicable, the parent company and all subsidiaries, branches, and unrelated 

establishments owned by the parent company. 

I~ ()/2f2 

6. Permit Conditions: 

If any of the ferroalloys production operations at your facility are subject to State or local air 

permit limits, please provide a copy of your current operating permit. If you have a title V 

permit and it is not available online, please provide a copy of it. If your title V permit renewal 

is still pending, please provide a copy of your permit application. 

5 

L__ ____________ __ 
PART II. GENERAL FACILITY INFORMATION 

1. Summary of Ferroalloy Production Unit Operations 

Complete the process summary in Table 2A for 2012 for all unit operations at your plant 

covered by the ferroalloys production source category. These include storage and 

handling of raw materials and products. c..az ~I m£,./j P::.o/2- 77/'.SL£. ~A. 

2. Summary of Raw Materials 

Complete the summary of raw materials used, in Table 2B. Include available information 

on the components included in the furnace charges for each product, and indicate 

approximately how much of each was consumed in 2012. CLJL ~/"'-'~ Fo~ 

T»a~ .:28. 

For each material potentially containing metal HAP, please provide the supplier's 

analysis or Material Safety Data Sheet (MSDS) describing the composition of the 

material. Describe the factors that are important in the selection of the raw material. 

3. Summary of Products & Production Volume 

Complete the summary of products and production volume in Table 2C. List the 

products, co-products, and by-products and indicate how much of each was produced in 

each of the last 3 years. C.B.Z C t.-/1' P'J£./.) ;:::D/2 })9&£ ..<c... . 

4. Verification of Area and Point Source Modeling Parameters 

Review the point source modeling parameters in Table 2D and the area source modeling 

parameters in Table 2E, and make any revisions to the listed values in the respective 

columns. 

5. Wet Scrubber Description 

Review the point source modeling parameters in Table 2D and the area source modeling 

parameters in Table 2E, and make any revisions to the listed values in the respective 

columns. 

PART III. COST ESTIMATES 

1. Costs to Implement Enhanced Local Capture at Eramet Marietta 

Please provide estimates of capital and annual costs to implement the enhanced local capture system 

described in your transmittal of July 2, 2012. Using that transmittal and other information provided 

by you, we have developed the following draft scenario of potential improvements that could be 

undertaken for each of the major emission points at the facility. Please review this list and notify us if 

you would suggest any changes to this list of capture and control scenarios. Then, provide estimated 

6 
costs to design, purchase, install and operate each element, including expenses projected for 2013 and 

beyond. 

Furnace 1: 

• Tap hood upgrade (extend hood over ladle, add partial enclosure); 

• Add tapping ladle cart system; 

• Add retractable hood for ladle rake-off; 

• Cast hood upgrades (add fixed hood at mid-point of casting station, install !-beam 

bumper at top of hood); 

• Expand capacity of furnace baghouse to accept tapping and raking emissions from 

Furnace #1; 

• Convert the existing tapping baghouse to an Furnace # 1 casting baghouse 

Furnace 12: 

• Tap hood upgrade (extend hood over ladle, add partial enclosure); 

• Add tapping ladle cart system; 

• Add retractable hood for ladle rake-off; 

• Cast hood upgrades (add fixed hood at mid-point of casting station, install !-beam 

bumper at top of hood); 

• Add new baghouse to control tapping, casting, ladle raking from Furnace #12. 

MOR 

• Cast hood upgrades (increase height of hood in rear, install !-beam bumper at front edge 

of the hood, raise existing horizontal duct, seal duct intakes, install dampers); 

• Ladle pouring upgrades (extend hood); 

• Add roof capture system to capture secondary fugitive emissions from MOR. 

Crushing and Sizing- No changes 

7 

L_ ___ _ _ _ ____ _ 
EMI's transmittal of July 2, 2012 described one conceptual strategy for enhanced local capture of process 

fugitives, not a "system," and clearly stated that EMI had not developed detailed cost estimates for that 

conceptual strategy or others. Accordingly, EMI is unable to provide "costs to design, purchase, install 

and operate each element, including expenses projected for 2013 and beyond" for the items listed in this 

request. EMI anticipates, as it did in July 2012, that a system based on the conceptual strategy described 

at that time would likely cost in the realm of $20 million to $35 million to implement. Since EPA has 

indicated that it does not anticipate finalizing a new NESHAP before 2014, EMI does not anticipate that it 

will incur compliance costs in 2013. 

In addition, since EPA has indicated that it has not yet settled on the pre-control and post-control 

emissions inventories that would necessarily dictate the design of such a system, EMI is unable at this 

time to determine whether it would suggest any changes to the items listed in this request. As stated in 

the July 2, 2012 correspondence, if EPA determines that enhanced local capture of process fugitives 

would satisfy the residual risk requirements of Section 112(f), EMI would like the opportunity to develop a 

specific design and more detailed cost estimates. EMI would supplement this response at that time. 
MATERIAL SAFETY DATA SHEET 

MSDS No.: EMI-MA1000 

Ferromanganese Alloys Revised: February 20,2009 

Page 1 of 5 

1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION 

ERAMET 

(COHMOG 

Product Identifier: High Carbon Ferromanganese, Standard Ferromanganese, Medium Carbon 

Ferromanganese, Low Carbon Ferromanganese 

Product Codes: MA1005, MA1101, MA2000, MA2010, MA2210, MA2211, MA3010, MA9110 and MA9308 

MANUFACTURER: Eramet I Comilog 

Airport Office Park, Bldg. 4, 333 Rouser Road 

Moon Township, PA 15108-2749 

U.S. Phone Number: (800} 388-7025 

EMERGENCY TELEPHONE NUMBER: CHEMTREC (800) 424-9300 

2. COMPOSITIONnNFORMATION ON INGREDIENTS 1 

wt. % CAS Registry # 

Manganese > 78 7 439-96-5 

Iron < 20 7 439-89-6 

Carbon < 7.5 7440-44-0 

Silicon < 1.5 7440-21-3 

Chromium < 0.5 7440-47-3 

Nickel < 0.5 7440-02-0 

OSHA HAZARDOUS COMPONENTS (29 CFR 1910.1200): 

EXPOSURE LIMITS 8 hrs. TWA (mg/m3

) 

Manganese 

Chromium 

Nickel 

OSHA PEL ACGIH TLV 

5 (ceiling) 0.2 

0.5 0.5 

1 1 

1 Elemental analysis of the alloy. The manufacturer can provide a more detailed analysis, including other trace elements. 

3. HAZARDS IDENTIFICATION 

This product does not represent a significant hazard to health, safety or the environment when handled and 

stored as advised (see Section 7}. Repeated, long term inhalation of ferromanganese alloy dust in excess 

of exposure limits may cause adverse health effects (see Section 11 ). Flammable and noxious gases may 

be formed in contact with moisture and/or acids (see Sections 10 and 11}. Ferromanganese alloy dust 

suspended in air may under certain conditions cause dust explosions (see Section 5}. 

4. FIRST AID MEASURES 

INHALATION: 

Emergency responders should use the appropriate respiratory protection when moving an affected victim 

to fresh air. Give artificial respiration if breathing has stopped. Call for prompt medical attention. (See 

Section 11} 

SKIN CONTACT: 

Wash skin with water and/or a mild detergent. If irritation develops, seek medical attention. 

EYE CONTACT: 

Rinse eyes with large amounts of water/saline solution until no particles remain in eye. See a physician 

on persistent feeling of discomfort or if irritation occurs. 

INGESTION: 

Incidental ingestion of small quantities of material fines as a result of inattention to proper personal 

hygiene does not represent a significant acute hazard. If large amounts are swallowed, get prompt 

medical attention. 

09-EMI-MA 1 OOO.doc The Manganese Source® 
MATERIAL SAFETY DATA SHEET 

Ferromanganese Alloys 

Page 2 of 5 

5. FIRE FIGHTING MEASURES 

COMBUSTIBILITY: 

MSDS No.: EMI-MA1000 

Revised: February 20, 2009 

Ferromanganese alloy, as packaged, is not combustible. When suspended in air, dust of 

ferromanganese alloy can be ignited, will propagate flame readily, and may generate considerable 

pressure and/or a mild explosion. Avoid generating sparks or ignition sources in areas of high airborne 

dust levels or in areas with accumulated dust. The degree of combustibility in air is dependent upon 

particle size, oxide coating, and quality of dispersion. The hazard increases with particle fineness. 

Thoroughly clean areas or equipment to be maintained prior to dust disturbing or ignition source 

generation activities. (See Section 10) 

AUTO IGNITION TEMPERATURE (dust layer): 

Ferromanganese alloy - 555°F (290°C). 

LOWER EXPLOSIVE LEVEL (airborne dust): 

Ferromanganese alloy- 130 gr/m3

. 

COMBUSTION PRODUCTS: 

Oxides of constituent elements. 

MINIMUM IGNITION ENERGY: 

Manganese- 80 millijoules; iron- 100 millijoules. 

EXTINGUISHING MEDIA: 

Class D fire: Use dry powder, dry sand, or C02 to smother fire. Fire may also be isolated and allowed to 

burn itself out. Do not disturb metal while extinguishing the fire. 

6. ACCIDENTAL RELEASE MEASURES 

LAND SPILL: 

Ferromanganese alloy spilled on the land represents minimal hazard. Cleanup personnel should wear 

appropriate respiratory protective equipment when addressing fine material. 

Avoid the use of compressed air to maneuver spills or leaks of fine material. Fine material should be 

swept up or vacuumed using explosion-proof equipment. Keep dry material and wet material separated. 

Place recovered material in disposal container. Avoid repackaging wet materials in sealed containers. 

WATER SPILL: 

Remove spilled product from water body by dipping, filtering, or other appropriate means. Avoid 

repackaging wet materials in sealed containers. 

7. HANDLING AND STORAGE 

HANDLING: 

Avoid handling that generates dust formation and generation. Avoid inhalation of dust (see Section 8). 

Avoid ignition sources (e.g. welding) in areas with high dust concentrations. Addition of wet product to 

molten metal may cause explosions (see Section 1 0). 

STORAGE: 

Ferromanganese alloy should be stored in a dry location at ambient temperatures. Avoid contact with 

hydrochloric acid (HCI) and nitric acid (HN03) 

8. EXPOSURE CONTROLS/PERSONAL PROTECTION 

ENGINEERING CONTROLS: 

The use of local exhaust ventilation is recommended to control emissions near the source. Provide 

appropriate ventilation of confined spaces. Use explosion-proof ventilation equipment. See Section 2 for 

Component Exposure Guidelines. 

09-EMI-MA1000.doc 
MATERIAL SAFETY DATA SHEET 

MSDS No.: EMI-MA1000 

Ferromanganese Alloys 

Page 3 of 5 

Revised: February 20, 2009 

PERSONAL PROTECTION: 

Eye protection, eye flushing facilities and protective gloves are recommended. Ensure adequate 

ventilation. Wear an appropriate particulate respirator in accordance with 29 CFR 1910.134 or CSA 

Standard Z94.4-M1982 for dust exposure that may exceed exposure limits. Area and/or personal air 

monitoring is recommended to determine whether exposures are below permissible limits. If exposure to 

phosphine and arsine is suspected (see section 10), or if adequate ventilation is not possible, a self 

contained breathing apparatus or an air supplied respirator is recommended. 

OCCUPATIONAL EXPOSURE LIMITS (OSHA and ACGIH): 

8-hour TWA (mq/m3

) 

Total inhalable dust 

Respirable dust 

Manganese 

Chromium 

Nickel 

Phosphine gas (PH3) 

Arsine gas (AsH3) 

OSHA PEL 

15 

5 

5 (ceiling) 

0.5 

1 

0.4 

0.2 

9. PHYSICAL AND CHEMICAL PROPERTIES 

Physical State: Lump or Granule 

ACGIH TLV 

10 

3 

0.2 

0.5 

1 

0.42 

0.16 

Color: 

Odor: 

Silvery grey, metallic surface 

Odorless 

Solubility: 

Melting Point (°C): 

Specific Gravity (water = 1 ): 

10. STABILITY AND REACTIVITY 

GENERAL: 

Insoluble in Water 

1243°C 

Approx. 4.5 

Ferromanganese alloy is stable and hazardous polymerization will not occur. 

CONDITIONS TO AVOID: 

Avoid generating sparks and other ignition sources (e.g. welding) in areas with high dust concentrations. 

Ferromanganese alloy particles suspended in air can cause dust explosions. Addition of wet material to 

molten metal may cause explosions. 

MATERIALS TO AVOID: 

Avoid contact with water and/or acids. 

HAZARDOUS REACTION/DECOMPOSITION PRODUCTS: 

Highly flammable hydrogen gas (H2) and the highly flammable and very toxic gases phosphine and arsine 

(garlic-like smell), both heavier than air, may be formed if ferromanganese alloy comes in contact with 

moisture, acids or bases. Contact with acids (pH<?) may result in generation of silane (SiH4), a 

spontaneously combustible gas. Wet product will form highly flammable hydrogen gas if added to molten 

metal, due to decomposition of water. 

11. TOXICOLOGICAL INFORMATION 

ACUTE EFFECTS: 

INHALATION: 

Finely divided dust may irritate and dehydrate mucous membranes. Phosphine/arsine may be 

absorbed from dust deposited on mucous membranes. The toxic mechanism for phosphine is not 

clear. Phosphine irritates exposed mucous membranes, depresses the central nervous system 

(CNS) and can cause edema of the lungs. Acute, non-fatal poisoning with phosphine gives temporary 

effects, including but not limited to malaise, vomiting, stomach pains, cough, and difficulty in 

breathing. Symptomatic treatment: Corticosteroids, prophylactic for edema of the lungs. 

09-EMI-MA 1 OOO.doc 
MATERIAL SAFETY DATA SHEET 

Ferromanganese Alloys 

Page 4 of 5 

SKIN CONTACT: 

MSDS No.: EMI-MA1000 

Revised: February 20, 2009 

Frequent or prolonged contact may irritate the skin and cause a skin rash (dermatitis). 

EYE CONTACT: 

Dust may irritate and cause dryness but will not permanently injure eye tissue. 

INGESTION: 

Minimal hazard in normal industrial use. 

CHRONIC EFFECTS: 

Manganese poisoning (Manganism) can occur from excessive intake of manganese via inhalation and 

ingestion. The most notable effects of manganese poisoning are central nervous system disorders which 

may occur as early as six months after initial exposure. Symptoms include apathy, drowsiness, sleep 

disturbance, muscular twitching, spastic gait, and emotion control problems. Permanent injury of the 

central nervous system may occur if chronic manganese poisoning is not treated. 

Prolonged exposure (years) to phosphine may lead to chronic effects such as difficulty in movement and 

speech problems. Epidemiological studies in the Norwegian ferroalloy industry have neither shown an 

increased rate of mortality, nor an increased incidence of cancer. 

Fumes produced through heating metal to high temperatures may be associated with pneumoconiosis. 

Ferromanganese alloys are not known to be reproductive toxins, teratogens, or mutagens. 

POTENTIAL HEALTH EFFECTS: 

This product contains chromium in the metallic state. The International Agency for Research on Cancer 

has determined that chromium and certain chromium compounds are "casually associated with cancer in 

humans" but "the compounds responsible for the carcinogenic effect in humans cannot be specified". 

This requires that chromium in all forms be identified as carcinogenic under OSHA. The American 

Conference of Governmental Industrial Hygienists has reviewed the available data and concluded that 

specific water soluble and insoluble hexavalent chromium compounds are carcinogenic to humans. 

NIOSH/OSHA "Guide for Chemical Hazards" conclusions are consistent with ACGIH; however, NIOSH 

recommended that all hexavalent chromium compounds be considered carcinogenic until proven 

otherwise. No recommendations have been made by ACGIH or NIOSH to include chromium metal or 

chromous and chromic salts as carcinogenic. 

The International Agency for Research on Cancer has determined that nickel and certain nickel 

compounds are "probably carcinogenic to humans" but the nickel compounds responsible for the effect 

have not been specified. This requires that nickel in all forms be identified as carcinogenic under OSHA. 

The American Conference of Governmental Industrial Hygienists has reviewed the available data and 

concluded that not all forms of nickel are carcinogenic. The American Industrial Hygiene Association has 

also concluded that there is no epidemiological evidence of increased risk of respiratory cancer in the 

refining of oxide ores or "in any other specifically nickel occupational exposures". 

12. ECOLOGICAL INFORMATION 

Although ferromanganese alloy is not characterized as a hazard to the land through bulk storage or 

similar activities, care should be taken to minimize airborne dust generation and prevent material 

contamination of water systems. 

13. DISPOSAL CONSIDERATIONS 

Avoid repackaging wet material in sealed containers. Dispose of in accordance with applicable federal, 

state, and local regulations. Ferromanganese alloy is not a listed or characteristic RCRA Hazardous 

Waste ( 40 CFR 261 ). 

09-EM 1-MA 1000. doc 
MATERIAL SAFETY DATA SHEET 

Ferromanganese Alloys 

Page 5 of 5 

14. TRANSPORT INFORMATION 

MSDS No.: EMI-MA1000 

Revised: February 20, 2009 

DOT (DEPARTMENT OF TRANSPORTATION): 

Proper Shipping Name: Not Regulated 

Hazard Class: Not Regulated 

I. D. Number and Initials: Not Regulated 

Packing Group: Not Regulated 

Label(s): Not Regulated 

15. REGULATORY INFORMATION 

OSHA (Occupational Safety and Health Administration) 

Hazardous by definition of hazardous communication standard (29 CFR 1910.1200) 

TSCA (Toxic Substance Control Act): 

Components of this product are listed on the TSCA Inventory. 

CERCLA (Comprehensive Response Compensation, and Liability Act): 

Ferromanganese alloy is not found in "List of Hazardous Substances and Reportable Quantities" ( 40 CFR 

302.4 ). No RQ has been assigned for the generic or broad class of "Manganese and Compounds". 

RCRA (Resource Conservation/Recovery Act): 

Ferromanganese alloy is not a listed or characteristic hazardous waste. 

SARA TITLE Ill (Superfund Amendments and Reauthorization Act); 

EPCRA (Emergency Planning and Community Right to Know Act): 

311/312 Hazard Categories: 

Immediate Health, Delayed Health, Fire. 

313 Reportable Ingredients: 

Manganese (CAS No. 7439-96-5) 

Chromium (CAS No. 7440-47-3) 

Nickel (CAS No. 7440-02-0) 

CALIFORNIA PROPOSITION 65: 

This product contains chemical(s) known to the State of California to cause cancer: 

Nickel 

16. OTHER INFORMATION 

Literature references are available upon request from the manufacturer. 

The information presented in this Material Safety Data Sheet relates to this specific material. It may not be 

valid for this material if used in combination with any other materials or in any process. It is the user's 

responsibility to verify the suitability and completeness of this information for the particular use intended. 

09-EMI-MA 1 OOO.doc 
MATERIAL SAFETY DATA SHEET 

Ferromanganese Slag 

Page 1 of4 

MSDS No.: EMI-FeMnSiag 

Revised: February 24,2009 

ERAMET 

(CDHftDG 

1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION 

Product Identifier: Ferromanganese Slag, FeMn Slag, High Carbon FeMn Slag, HC FeMn Slag, Manganox 35 

Product Codes: MA9408, MA9409 

MANUFACTURER: Eramet I Comilog 

Airport Office Park, Bldg. 4, 333 Rouser Road 

Moon Township, PA 15108-2749 

U.S. Phone Number: (800) 388-7025 

EMERGENCY TELEPHONE NUMBER: CHEMTREC (800) 424-9300 

2. COMPOSITION/INFORMATION ON INGREDIENTS 1 

wt.% 

Manganese Oxides > 30 

Silicon Dioxide (Non-crystalline) < 25 

Alumina < 25 

Calcium Oxide < 18 

Magnesium Oxide < 8 

Potassium Oxide < 6 

Iron Oxide < 1.5 

Barium Oxide < 1.5 

CAS Registry # 

1344-43-9 (MnO), 1313-13-9 (Mn02} 

60676-86-0 

1344-28-1 

1305-78-8 

1309-48-4 

12136-45-7 

1309-28-5 

1304-28-5 

OSHA HAZARDOUS COMPONENTS (29 CFR 1910.1200): 

Manganese 

Silica, Fused 

Aluminum Oxide Fume 

Calcium Oxide 

Magnesium Oxide Fume 

Barium 

Iron Oxide Fume 

EXPOSURE LIMITS 8 hrs. TWA (mg/m3

} 

OSHA PEL ACGIH TLV 

5 (ceiling} 0.2 

0.1 0.1 

15 (total), 5 (respirable) 10 

5 2 

10 10 

0.5 0.5 

10 5 

1 Elemental analysis of the slag. The manufacturer can provide a more detailed analysis, including other trace elements. 

3. HAZARDS IDENTIFICATION 

This product does not represent a significant hazard to health, safety or the environment when handled and 

stored as advised (see Section 7). Repeated, long term inhalation of manganese dust in excess of 

exposure limits may cause adverse health effects (see Section 11 ). Handling of ferromanganese slag does 

not represent a health risk when usual safety rules are observed. Flammable and noxious gases may be 

formed in contact with moisture and/or acids (see Sections 10 and 11). 

4. FIRST AID MEASURES 

INHALATION: Emergency responders should use the appropriate respiratory protection when moving an 

affected victim to fresh air. Give artificial respiration if breathing has stopped. Call for prompt medical 

attention. (See Section 11) 

SKIN CONTACT: Wash skin with water and/or a mild detergent. If irritation develops, seek medical 

attention. 

EYE CONTACT: Rinse eyes with large amounts of water/saline solution until no particles remain in eye. 

See a physician on persistent feeling of discomfort or if irritation occurs. 

INGESTION: Incidental ingestion of small quantities of material fines as a result of inattention to proper 

personal hygiene does not represent a significant acute hazard. If large amounts are swallowed, get 

prompt medical attention. 

09-EMI-FeMnSiag.doc The Manganese Source® 
MATERIAL SAFETY DATA SHEET 

Ferromanganese Slag 

Page 2 of 4 

5. FIRE FIGHTING MEASURES 

COMBUSTIBILITY: 

MSDS No.: EMI-FeMnSiag 

Revised: February 24, 2009 

Ferromanganese slag is not combustible. 

The following cautions apply to ferromanganese alloy that may be present in small quantities in 

ferromanganese slag: When suspended in air, dust of ferromanganese can be ignited, will propagate 

flame readily, and may generate considerable pressure and/or a mild explosion. Avoid generating sparks 

or ignition sources in areas of high airborne dust levels or in areas with accumulated dust. The degree of 

combustibility in air is dependent upon particle size, oxide coating, and quality of dispersion. The hazard 

increases with particle fineness. Thoroughly clean areas or equipment to be maintained prior to dust 

disturbing or ignition source generation activities. (See Section 10) 

AUTO IGNITION TEMPERATURE (dust layer): Not applicable for ferromanganese slag; manganese metal 

- 465°F (240°C); ferromanganese alloy - 555°F (290°C). 

LOWER EXPLOSIVE LEVEL (airborne dust): 

Not applicable for ferromanganese slag; manganese metal - 125 gr/m3

; ferromanganese alloy - 130 

gr/m3

. 

COMBUSTION PRODUCTS: 

Not applicable for ferromanganese slag. 

MINIMUM IGNITION ENERGY: 

Not applicable for ferromanganese slag; manganese - 80 millijoules. 

EXTINGUISHING MEDIA: 

Ferromanganese slag will not support combustion. 

6. ACCIDENTAL RELEASE MEASURES 

LAND SPILL: Ferromanganese slag spilled on the land represents minimal hazard. Cleanup personnel 

should wear appropriate respiratory protective equipment when addressing fine material. 

Avoid the use of compressed air to maneuver spills or leaks of fine material. Keep dry material and wet 

material separated. Place recovered material in disposal container. Avoid repackaging wet materials in 

sealed containers. 

WATER SPILL: Remove spilled product from water body by dipping, filtering, or other appropriate means. 

Avoid repackaging wet materials in sealed containers. 

7. HANDLING AND STORAGE 

HANDLING: Avoid handling that generates dust build-up. Avoid inhalation of dust (see Section 8). 

Addition of wet product to molten metal may cause explosions (see Section 10). 

STORAGE: Ferromanganese slag should be stored in a dry location at ambient temperatures. Avoid 

contact with hydrochloric acid (HCI) and nitric acid (HN03). 

8. EXPOSURE CONTROLS/PERSONAL PROTECTION 

ENGINEERING CONTROLS: The use of local exhaust ventilation is recommended to control emissions 

near the source. Provide appropriate ventilation of confined spaces. Use explosion-proof ventilation 

equipment. See Section 2 for Component Exposure Guidelines. 

PERSONAL PROTECTION: Eye protection, eye flushing facilities and protective gloves are recommended. 

Ensure adequate ventilation. Wear an appropriate particulate respirator in accordance with 29 CFR 

1910.134 or CSA Standard Z94.4-M1982 for dust exposure that may exceed exposure limits. Area and/or 

personal air monitoring is recommended to determine whether exposures are below permissible limits (see 

Section 2). If exposure to phosphine and arsine is suspected (see Section 10), or if adequate ventilation is 

not possible, then a self contained breathing apparatus or an air supplied respirator is recommended. 

09-EMI-Fe Mn Slag.doc 
MATERIAL SAFETY DATA SHEET 

Ferromanganese Slag 

Page 3 of 4 

MSDS No.: EMI-FeMnSiag 

Revised: February 24, 2009 

OCCUPATIONAL EXPOSURE LIMITS (OSHA and ACGIH): 

8-hour TWA (mq/m3) 

OSHA PEL ACGIH TLV 

Total inhalable dust 

Respirable dust 

Phosphine gas (PH3) 

Arsine gas (AsH3) 

15 

5 

0.4 

0.2 

10 

3 

0.42 

0.16 

9. PHYSICAL AND CHEMICAL PROPERTIES 

Physical State: 

Color: 

Odor: 

Solubility: 

Melting Point (°C): 

Specific Gravity (water = 1 ): 

10. STABILITY AND REACTIVITY 

Lump, non uniform size 

Dull to silvery metallic with black, grey, and brown variations 

Odorless 

Insoluble in water 

1070 to 1245°C (ferromanganese alloy) 

Variable 

GENERAL: Ferromanganese slag is stable and hazardous polymerization will not occur. 

CONDITIONS TO AVOID: Addition of wet material to molten metal may cause explosions. 

MATERIALS TO AVOID: Avoid contact with water and/or acids. 

HAZARDOUS REACTION/DECOMPOSITION PRODUCTS: Highly flammable hydrogen gas (H2) and the 

highly flammable and very toxic gases phosphine and arsine (garlic-like smell), both heavier than air, may 

be formed if ferromanganese slag comes in contact with moisture, acids or bases. Contact with acids 

(pH<?) may result in generation of silane (SiH4), a spontaneously combustible gas. Wet product will form 

highly flammable hydrogen gas if added to molten metal, due to decomposition of water. 

11. TOXICOLOGICAL INFORMATION 

ACUTE EFFECTS: 

INHALATION: Finely divided dust may irritate and dehydrate mucous membranes. Phosphine/arsine 

may be absorbed from dust deposited on mucous membranes. The toxic mechanism for phosphine is 

not clear. Phosphine irritates exposed mucous membranes, depresses the central nervous system 

(CNS) and can cause edema of the lungs. Acute, non-fatal poisoning with phosphine gives temporary 

effects, including but not limited to headache, malaise, vomiting, stomach pains, cough, and difficulty in 

breathing. Symptomatic treatment: Corticosteroids, prophylactic for edema of the lungs. 

SKIN CONTACT: Frequent or prolonged contact may irritate the skin and cause a skin rash (dermatitis). 

EYE CONTACT: Dust may irritate and cause dryness but will not permanently injure eye tissue. 

INGESTION: Minimal hazard in normal industrial use. 

CHRONIC EFFECTS: 

Manganese poisoning (Manganism) can occur from excessive intake of manganese via inhalation and 

ingestion. The most notable effects of manganese poisoning are central nervous system disorders which 

may occur as early as six months after initial exposure. Symptoms include apathy, drowsiness, sleep 

disturbance, muscular twitching, spastic gait, and emotion control problems. Permanent injury of the 

central nervous system may occur if chronic manganese poisoning is not treated. 

Prolonged exposure (years) to phosphine may lead to chronic effects such as difficulty in movement and 

speech problems. Epidemiological studies in the Norwegian ferroalloy industry have neither shown an 

increased rate of mortality, nor an increased incidence of cancer. 

Fumes produced through heating metal to high temperatures may be associated with pneumoconiosis. 

Ferromanganese slag is not known to be a reproductive toxin, teratogen, or mutagen. 

09-EMI-FeMnSiag.doc 
MATERIAL SAFETY DATA SHEET 

Ferromanganese Slag 

Page 4 of 4 

12. ECOLOGICAL INFORMATION 

MSDS No.: EMI-FeMnSiag 

Revised: February 24, 2009 

Ferromanganese slag is not characterized as a hazard to the environment. 

13. DISPOSAL CONSIDERATIONS 

Avoid repackaging wet material in sealed containers. Dispose of in accordance with applicable federal, 

state, and local regulations. Ferromanganese slag is not a listed RCRA Hazardous Waste (40 CFR 261 ). 

14. TRANSPORT INFORMATION 

DOT (DEPARTMENT OF TRANSPORTATION): 

Proper Shipping Name: Not Regulated 

Hazard Class: Not Regulated 

I. D. Number and Initials: Not Regulated 

Packing Group: Not Regulated 

Label(s): Not Regulated 

15. REGULATORY INFORMATION 

OSHA (Occupational Safety and Health Administration) 

Hazardous by definition of hazardous communication standard (29 CFR 1910.1200) 

TSCA (Toxic Substance Control Act): 

Components of this product are listed on the TSCA Inventory. 

CERCLA (Comprehensive Response Compensation, and Liability Act): 

Ferromanganese slag is not found in "List of Hazardous Substances and Reportable Quantities" ( 40 CFR 

302.4). No RQ has been assigned for the generic or broad class of "Manganese and Compounds". 

RCRA (Resource Conservation/Recovery Act): 

Ferromanganese slag is not a listed hazardous waste. 

SARA TITLE Ill (Superfund Amendments and Reauthorization Act); 

EPCRA (Emergency Planning and Community Right to Know Act): 

311 /312 Hazard Categories: 

Immediate Health, Delayed Health, Fire. 

313 Reportable Ingredients: 

Manganese Compounds 

CALIFORNIA PROPOSITION 65: 

This product contains chemical(s) known to the State of California to cause cancer: 

None 

16. OTHER INFORMATION 

Literature references are available upon request from the manufacturer. 

The information presented in this Material Safety Data Sheet relates to this specific material. It may not be 

valid for this material if used in combination with any other materials or in any process. It is the user's 

responsibility to verify the suitability and completeness of this information for the particular use intended. 

09-EMI-FeMnSiag.doc 
Revised 7/1/98 Page 1 of 8 

CHEMTREC EMERGENCY TELEPHONE: (800) 424-9300 

MANGANESE ORE 

(AFRICAN SOURCE) 

SECTION 1 PRODUCT INFORMATION 

TRADE NAME: 

CHEMICAL NAME: 

Manganese Ore (Various Grades) 

Manganese Ore 

O=lnsignificant 

2=Moderate 

4=Extreme 

l ""Slight 

3=High 

*See Sections 6 and 7 for 

information regarding chronic health 

effects. 

See Section 10 for details on 

required Personal Protection. 

SECTION2 HAZARDOUS INGREDIENTS & EXPOSURE DATA 

Comilog North America Inc.'s hazard evaluation has identified the following chemical ingredients as hazardous under 

OSHA's Hazard Communication Rule, 29 CFR 1910.1200. 

INGREDIENT CAS# APPROX.% 

Manganese 7439-96-5 40-55% 

Aluminum as Aluminum Oxides 1344-28-1 8%Max. 

Iron (typically as oxides) 7439-89-6 4%Max. 

Silicon as Silicon Oxides 7440-21-3 5% Max. 

TLV's and PEL's for this material have not been established, the following are for compounds as Mn: 

Dust Ceiling 

Dust STEL 

Dust TWA 

Fume Ceiling 

FumeSTEL 

Fume TWA 

5 mg/M3 (OSHA), 5 mg/M3 (CANADA) 

3 mg/M3 (NIOSH) 

1 mg/M3 (NIOSH), 0.2 mg/M3 (ACGIH) 

5 mg/M3 (OSHA) 

3 mg/M3 (OSHA, NIOSH, CANADA) 

I m M3 (OSHA, NIOSH, CANADA), 0.2mg/M3 (ACGIH) 
Revised 7/1/98 Page 2 of 8 

MANGANESE ORE 

(AFRICAN SOURCE) 

CHEMTREC EMERGENCY TELEPHONE: (800) 424-9300 

SECTION3 

SECTION 4 

INHALATION: 

EYES: 

SKIN: 

INGESTION: 

I PRECAUTIONARY LABEL INFORMATION 

\VARNING: CONTAINS MANGANESE- A VOID INHALING DUST 

Chronic exposure to heavy concentrations of manganese 

containing dust can cause central nervous system disorders. 

j FIRST AID INFORMATION 

Remove to fresh air. Treat symptoms. Support breathing as required. Call a 

physician. 

Immediately flush for at least 15 minutes while holding eyelids open to ensure no 

particles remain in the eye. If symptoms such as irritation develop, consult a 

physician. 

Wash thoroughly with mild soap and water. A shower is recommended if significant 

dust exposure occurs. 

If swallowed and the person is conscious, drink water and induce vomiting. Call a 

physician. 

MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE: 

Exposure may aggravate pre-existing respiratory infections. Persons with a history of alcoholism, psychiatric, neurologic, pulmonary, 

or liver disease may be at greater risk of developing symptoms of over exposure. 

NOTE: After first aid, seek prompt, professional medical attention. 

NOTE TO PHYSICIAN: Based on the individual reactions of the patient, the physician's judgement should be used to control 

symptoms and clinical condition. 

CAUTION: If unconscious, having trouble breathing or in convulsions, do not induce vomiting or give water. 

SECTION 5 I PHYSICAL AND CHEMICAL PROPERTIES ~----------------------~-----------------------------------------------------·- ----------

COLOR: Black 

FORM: Lumps or powder 

ODOR: None 

SOLUBILITY IN WATER: Insoluble (soluble in most acids) 

SPECIFIC GRAVITY: Approximately 4-5 (H20=1) 

MELTING POINT: 1564°C (will decompose and oxidize if heated in air above 500°C) 

FREEZING POINT: Approximately 1700°C 

LN~O~T~E=:~T~h~e=se~pLh~y~s~ic~a~l~plro.~p~e~rt~ie~s~a_r~e~cyp~i_ca_l_v_a_lu_e~s_ft_o r_th_i_sLp_ro_du_c_t. _____________________________________ ~ 
CHEMTREC EMERGENCY TELEPHONE: (800) 424- 9300 

Revised 7/1/98 Page 3 of 8 

MANGANESE ORE 

(AFRICAN SOURCE) 

SECTION 6 I HEALTH EFFECTS INFORMATION 

PRIMARY ROUTE(S) OF EXPOSURE: INHALATION 

TARGET ORGAN EFFECTS: LUNGS/PULMONARY FUNCTION, CENTRAL NERVOUS SYSTEM 

SYMPTOMS OF OVER EXPOSURE TO MANGANESE: 

ACUTE (Short Term Effects) 

Over exposure can cause mild to moderate irritation to skin, eyes, nose and throat depending on the duration of contact. 

Redness and tearing of eyes and red, dry skin are possible. Inhalation can result in pulmonary effects, consisting of 

difficult, shallow respiration and fever which mimics metal fume fever as well as cold-like symptoms (chills and muscle 

aches, dryness ofthe mouth). 

CHRONIC (Long Term Effects) 

Chronic exposure can result in conjunctivitis from irritant dusts and dermatitis. Chronic inhalation of manganese 

containing dust can result in Central Nervous System disorders that may appear after 6 months to 2 years of elevated 

exposure. The symptoms, which resemble Parkinsons Disease, are described below: 

Stage I (subclinical/reversible): Indifference; irritability; headache; anorexia; sleep disturbances; decreased libido; 

arthralgia; muscular spasm and diminished fine motor coordination; emotional and behavioral disorders called 

"manganic psychosis" are more frequently seen among miners at this stage. 

Stage II (clinical/intermediate): Speech becomes slow and stammering with monotonous voice; mask-like faces; 

excessive salivation; awkward gestures; tremors of tongue, arms, and leg; gait disturbances. 

Stage III (late): Muscular rigidity; bradykinesia with slow spasmodic gait; emotional instability; postural instability and 

imbalance; diminished mental ability. 

SILICON AS SILICON OXIDES: 

Silicotic nodule is a local fibrosis of the terminal and respiratory bronchiole. 

Massive fibrosis is the result of coalescence of nodules and is associated with architectural distortion and cavitation. 

Simple silicosis - occurs after 20+ years exposure. May be relatively asymptomatic and show little respiratory 

impairment. Coalescence of smaller opacities to progressive massive fibrosis is accompanied by cough, progressive 

dyspnea, weight loss, and hemoptysis. 

Accelerated silicosis- occurs after 5-15 years exposure. X-ray changes appear earlier and the disease progresses at a 

faster rate, More frequently associated with the development ofPMF. 

Acute silicosis - occurs after 1-3 years exposure. Also known as silicoproteinosis. Characterized by progressive 

dyspnea, fever, cough, and weight loss. 

ALUMINUM OXIDE: 

Pulmonary changes are associated with anorexia, cough, dyspnea, chest pain, and weakness. Vital capacity and transfer 

factor may both be altered. Chest x-rays show: increased bronchovascular markings - small irregular opacities -

occasional confluent foci. 

AGGRAVATION OF EXISTING CONDITIONS: 

Higher incidence of respiratory infection and pneumonia: persons with a history of alcoholism, psychiatric, neurologic, 

or pulmonary diseases, liver dysfunction, or anemia may be at higher risk. 
CHEMTREC EMERGENCY TELEPHONE: (800) 424- 9300 

Revised 7/1/98 Page 4 of 8 

MANGANESE ORE 

(AFRICAN SOURCE) 

SECTION 7 I TOXICOLOGY INFORMATION 

Manganese Dioxide 

Iv LD50 (rabbit)= 45 mg/kg 

Manganese Compounds as Manganese (Mn) 

Oral LD50 (rat)= 9000 mg/kg 

Silicon as Silicon Dioxide: 

Acute toxic data: Inhalation Td10 (human= 400 particles/cc for 4 years (intermittent) - pulmonary effects. 

Inhalation Td10 (human= 16 mppcf for 8 hrs/day for 17.9 years (intermittent)- pulmonary effects. itr 

Ld,o (rat)= 200 mg/kg: iv Ld,o (dog)= 20 mg/kg; [3] imp Td10 (rat)= 900 mg/kg --> neo. 

Aluminum Oxide: 

No information available. 

Iron as Iron Oxide: 

Ip LD50 (mouse)= 26 mg/kg. 

LD50 = Lethal dose which leads to death of 50% of a population. 

CARCINOGENICITY: Manganese and potassium are not listed by NTO, IARC, OSHA or EPA as carcinogenic. 

SECTION 8 I FIRE AND EXPLOSION INFORMATION 

FLASH POINT: 

STABILITY: 

Not Flammable 

Stable 

HAZARDOUS POLYMERIZATION: Will not occur 

EXTINGUISHER MEDIA: 

OTHER HAZARDS: 

SECTION 9 

INCOMPATIBILITY: 

Dry chemical or carbon dioxide extinguishers advised 

See incompatibility below. 

I REACTIVITY INFORMATION 

A void contact with easily oxidizable material. Soluble in hydrochloric acid with evolution of chlorine. 

THERMAL DECOMPOSITION PRODUCTS: 

Manganese may react with water to produce hydrogen and unsaturated hydrocarbons in the event of combustion. 
Revised 7/1/98 Page 5 of 8 

CHEMTREC EMERGENCY TELEPHONE: {800) 424- 9300 

MANGANESE ORE 

(AFRICAN SOURCE) 

SECTION 10 j PERSONAL PROTECTION EQUIPMENT 

RESPIRATORY PROTECTION: 

Where airborne concentrations may exceed OSHA/ ACGIH permissible air concentrations, the minimum respiratory 

protection recommended is a negative pressure air purifying respirator with cartridges that are NIOSH/MSHA approved 

against dust, fume, and mists having a TWA not less than 0.05 mg/cubic meter. 

A general dust mask is recommended for applications where airborne concentrations are below the regulatory limits. 

VENTILATION: General ventilation is recommended. 

PROTECTIVE EQUIPMENT: 

Safety glasses or goggles are recommended where the possibility of getting dust particles in the eyes exists. 

Gloves or other protective clothing recommended if skin contact is appreciable. 

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing 

before reuse. 

The availability of an eye wash fountain and safety shower is recommended. 

SECTION 11 J SPILL AND DISPOSAL INFORMATION 

IN CASE OF TRANSPORTATION ACCIDENTS, CALL THE 24-HOUR CHEMTREC HOTLINE (800) 424-9300. 

SPILL CONTROL AND RECOVERY: 

Use and clean-up procedure that minimizes exposure to dust. Vacuuming is preferred for dust. Use of approved 

respirators is required for applications where adequate ventilation cannot be provided. Place all material in a closed 

container if dry. Refer to CERCLA in Section 13. 

DISPOSAL: 

Dispose ofin accordance with applicable federal, state, and local regulations. 

SECTION 12 l TRANSPORT AION INFORMATION 

DOT PROPER SHIPPING NAME/HARARD CODE: Not Regulated. 
CHEMTREC EMERGENCY TELEPHONE: (800) 424-9300 

SECTION 13 I REGULA TORY INFORMATION 

The following regulations apply to this product: 

FEDERAL REGULATIONS: 

OSHA'S HAZARD COMMUNICATION RULE. 29 CFR 1910.1200: 

Revised 7/1/98 Page 6 of 8 

MANGANESE ORE 

(AFRICAN SOURCE) 

OSHA regulations require that the hazards associated with this material and all information included in this data sheet be 

communicated to your employees. Based on Comilog North America's hazard evaluation the following ingredient in this 

product is hazardous and the reason is shown below. 

MANGANESE TETROXIDE (as Mn): OSHA PEL TWA 1 mglm3 

MANGANESE: Target Organ Effects (Central Nervous System) Ceiling 5 mg/m3 OSHA PEL and ACGIH TL V 

SILICON: Irritant OSHA PEL and ACGIH TLV - TWA 10 mg/m3 

ALUMINUM OXIDE: Irritant OSHA PEL and ACGIH TLV - TWA 10mg/m3 

IRON OXIDE Dust and Fume (as Fe): Irritant OSHA PEL,TWA 10 mg/m3 , ACGIH TLV 5 mg/m3 

EPCRA 302/303/304: 

This product does not contain ingredients specified in the List ofExtremely Hazardous Substances. 

EPCRA 311/312/313: 

Comilog North America Inc.'s hazard evaluation has found this product to be hazardous. Owners and operators that are 

required to have available MSDS's under OSHA's Hazard Communication Standard must submit these MSDS's or a list 

of these MSDS 's to specified agencies in accordance with Section 311. 

According to Section 312, owners or operators that are required to have available MSDS 's under OSHA's Hazard 

Communication Standard must submit hazardous chemical inventory forms (Tier I or II) to the SERC, LEPC and local 

fire departments annually by March 1. The product should be reported under the following EPA Hazardous categories: 

CHEMICAL NAME: Manganese Ore 

CAS#: 7439-96-5 

-~ Immediate (acute) health hazard 

-~ Delayed (chronic) health hazard 

Fire hazard 

Sudden release of pressure hazard 

Reactive hazard 

This product is a manganese compound, which is included on the Section 313 list of toxic chemicals. Owners or 

operators of certain facilities are required to submit annual reports (Form R) of routine emissions and accidental releases 

to EPA and designated state agencies. 
CHEMTREC EMERGENCY TELEPHONE: (800) 424- 9300 

Revised 7/1198 Page 7 of 8 

MANGANESE ORE 

(AFRICAN SOURCE) 

SECTION 13 I REGULA TORY INFORMATION (continued) 

TOXIC CHEMICAL NAME: Manganese as oxides (55% Mn, max) 

For more information regarding EPCRA reporting requirements, contact your local emergency planning committee 

(LEPC), your state emergency response commission (SERC) or the EPA's EPCRA Hotline at (800) 535-0202. 

CERCLA 103: 

Manganese compounds have been listed as hazardous air pollutants under section 112(b) of the Clean Air Act. A 

statutory RQ of 1 lb. applies until RQs are adjusted. A release of more than 1 lb. of manganese to the environment via 

the air must be reported to the National Response Center at (800) 424-8802. 

RCRA: 

This material as supplied is not a listed or characteristic hazardous material as defined by RCRA. However, wastes 

generated by particular processing of this material may be considered hazardous waste. See 40 CFR 261 for more 

information. 

TSCA: 

This material is not on the TSCA 8(a) list, therefore no special reporting is required. All compounds contained in this 

material are listed on EPA's 8(b) master inventory list and can be processed and exported. As an inorganic substance, it 

is exempt from Inventory Update Reporting. Any unusual, adverse health or environmental effects attributed to this 

product should be reported to Comilog North America Inc. For more information regarding TSCA, contact the TSCA 

Assistance Information Service at (202) 554-1404. 

STATE REGULATIONS: 

CALIFORNIA PROPOSITION 65: 

This product does not contain any chemicals which require warning under California Proposition 65. 

MICHIGAN CRITICAL MATERIALS: 

This product does not contain ingredients listed on the Michigan Critical Materials Register. 

INTERNATIONAL REGULATIONS: 

This product contains the following hazardous substance(s): CHEMICAL NAME: Manganese compounds 

(55% Mn, Max.) CAS# 7439-96-5 

Based on the toxicological properties of manganese, this is a WHMIS controlled product under The House of Commons 

of Canada Bill C-70. Class D, Division 2, Subdivision B Toxic Material labels are required in Canada. 

'---------··- ----·-----·--------------------------------' 
CHEMTREC EMERGENCY TELEPHONE: (800) 424-9300 

Revised 7/1/98 Page 8 of 8 

MANGANESE ORE 

(AFRICAN SOURCE) 

SECTION 14 I ADDITIONAL INFORMATION 

Store in a clean, well ventilated area away from heat and strong oxidizing agents. 

A void generation of airborne dusts. 

SECTION 15 I BIBLIOGRAPHY 

DANGEROUS PROPERTIES OF INDUSTRIAL MATERIALS, Sax, N. Irving, ed., Van Nostrand Reinhold 

Company, N.Y., 6rh Edition, 1984. 

E.N., PLUNKETT, M.D., Handbook oflndustrial Toxicology, Third Edition, Chemical Publishing Company, 1987. 

NATIONAL FIRE PROTECTION AGENCY, Fire Protection Guide to Hazardous Materials, lOth Edition, 1991. 

PATTY"S INDUSTRIAL HYGIENE AND TOXICOLOGY, Clayton, G.D., Clayton, F.E., eds. John Wiley and Sons, 

N.Y., Yd Edition, Vol. 2 A-C, 1981. 

THRESHOLD LIMIT VALUES FOR CHEMICAL SUBSTANCES AND PHYSICAL AGENTS IN THE 

WORKROOM ENVIRONMENT WITH INTENDED CHANGES, American Conference of Governmental Industrial 

Hygienists, OH. 

Title 29 Code of Federal Regulations Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and 

Health Administration (OSHA). 

All information, recommendations and suggestions appearing in this bulletin concerning the use of our 

products are based upon tests and data believed to be reliable: however, it is the user's responsibility to 

determine the suitability for their own use of the products described herein. Since the actual use by others 

is beyond our control, no guarantee, expressed or implied, is made by Comilog North America Inc. as to 

the effects of such use or the results obtained, nor does Comilog North America Inc. assume any liability 

arising out of use, by others, of the products herein. Nor is the information herein to be confused as 

absolutely complete since additional information may be necessary or desirable when particular or 

exceptional conditions or circumstances exist because of applicable laws or government regulations. 

Nothing herein contained is to be construed as permission or as a recommendation to infringe any patent. 
MATERIAL SAFETY DATA SHEET 

Silicomanganese Slag 

Page 1 of 5 

MSDS No.: EMI-SiMnSiag 

Revised: February 25, 2009 

1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION 

Product Identifier: Silicomanganese Slag, SiMn Slag 

Product Code: None 

MANUFACTURER: Eramet I Comilog 

Airport Office Park, Bldg. 4, 333 Rouser Road 

Moon Township, PA 15108-2749 

U.S. Phone Number: (800) 388-7025 

EMERGENCY TELEPHONE NUMBER: CHEMTREC (800) 424-9300 

2. COMPOSITIONnNFORMATION ON INGREDIENTS 1 

wt. % CAS Registry # 

Silicon Dioxide (Non-crystalline) < 43 69012-64-2 

Alumina < 20 1344-28-1 

Calcium Oxide < 20 1305-78-8 

Manganese Oxide < 12 1317-35-7 

Magnesium Oxide < 12 1309-48-4 

Barium Oxide < 4 1304-28-5 

Potassium Oxide < 3 12136-45-7 

Iron Oxide < 0.5 1309-28-5 

OSHA HAZARDOUS COMPONENTS (29 CFR 1910.1200): 

EXPOSURE LIMITS 8 hrs. TWA (mg/m3

) 

Manganese 

Aluminum Oxide Fume 

Calcium Oxide 

Magnesium Oxide Fume 

Barium 

Silica, Amorphous 

Iron Oxide Fume 

OSHA PEL ACGIH TLV 

5 (ceiling) 0.2 

15 10 

5 2 

10 10 

0.5 0.5 

OSHA Table Z3 

10 5 

2 

1 Elemental analysis of the slag. The manufacturer can provide a more detailed analysis, including other trace elements. 

3. HAZARDS IDENTIFICATION 

This product does not represent a significant hazard to health, safety or the environment when handled and 

stored as advised (see Section 7). Repeated, long term inhalation of manganese dust in excess of 

exposure limits may cause adverse health effects (see Section 11 ). Flammable and noxious gases may be 

formed in contact with moisture and/or acids (see Sections 10 and 11). 

4. FIRST AID MEASURES 

INHALATION: 

Emergency responders should use the appropriate respiratory protection when moving an affected victim 

to fresh air. Give artificial respiration if breathing has stopped. Call for prompt medical attention. (See 

Section 11) 

SKIN CONTACT: 

Wash skin with water and/or a mild detergent. If irritation develops, seek medical attention. 

EYE CONTACT: 

Rinse eyes with large amounts of water/saline solution until no particles remain in eye. See a physician 

on persistent feeling of discomfort or if irritation occurs. 

EMI-SiMnSiag The Manganese Source® 
MATERIAL SAFETY DATA SHEET 

Silicomanganese Slag 

Page 2 of 5 

INGESTION: 

MSDS No.: EMI-SiMnSiag 

Revised: February 25, 2009 

Incidental ingestion of small quantities of material fines as a result of inattention to proper personal 

hygiene does not represent a significant acute hazard. If large amounts are swallowed, get prompt 

medical attention. 

5. FIRE FIGHTING MEASURES 

COMBUSTIBILITY: 

Silicomanganese slag is not combustible. 

The following cautions apply to silicomanganese alloy which may be present in small quantities in 

silicomanganese slag: When suspended in air, dust of silicomanganese can be ignited, will propagate 

flame readily, and may generate considerable pressure and/or a mild explosion. Avoid generating sparks 

or ignition sources in areas of high airborne dust levels or in areas with accumulated dust. The degree of 

combustibility in air is dependent upon particle size, oxide coating, and quality of dispersion. The hazard 

increases with particle fineness. Thoroughly clean areas or equipment to be maintained prior to dust 

disturbing or ignition source generation activities. (See Section 10) 

AUTO IGNITION TEMPERATURE (dust layer): Not applicable for silicomanganese slag; silicomanganese 

alloy - 550°F (290°C). 

LOWER EXPLOSIVE LEVEL: Not applicable for silicomanganese slag; 

silicomanganese alloy- greater than 400 g/m3

. 

COMBUSTION PRODUCTS: 

Not applicable for silicomanganese slag. 

MINIMUM IGNITION ENERGY: 

Not applicable for silicomanganese slag; manganese- 80 millijoules. 

EXTINGUISHING MEDIA: 

Silicomanganese slag will not support combustion. 

6. ACCIDENTAL RELEASE MEASURES 

LAND SPILL: 

Silicomanganese slag spilled on the land represents minimal hazard. Cleanup personnel should wear 

appropriate respiratory protective equipment when addressing fine material. 

Avoid the use of compressed air to maneuver spills or leaks of fine material. Keep dry material and wet 

material separated. Place recovered material in disposal container. Avoid repackaging wet materials in 

sealed containers. 

WATER SPILL: 

Remove spilled product from water body by dipping, filtering, or other appropriate means. Avoid 

repackaging wet materials in sealed containers. 

7. HANDLING AND STORAGE 

HANDLING: 

Avoid handling that generates dust build-up. Avoid inhalation of dust (see Section 8). Addition of wet 

product to molten metal may cause explosions (see Section 10). 

STORAGE: 

Silicomanganese slag should be stored in a dry location at ambient temperatures. Avoid contact with 

hydrochloric acid (HCI) and nitric acid (HN03) 

EMI-SiMnSiag 
MATERIAL SAFETY DATA SHEET 

Silicomanganese Slag 

Page 3 of 5 

MSDS No.: EMI-SiMnSiag 

Revised: February 25, 2009 

8. EXPOSURE CONTROLS/PERSONAL PROTECTION 

ENGINEERING CONTROLS: 

The use of local exhaust ventilation is recommended to control emissions near the source. Provide 

appropriate ventilation of confined spaces. Use explosion-proof ventilation equipment. See Section 2 for 

Component Exposure Guidelines. 

PERSONAL PROTECTION: 

Eye protection, eye flushing facilities and protective gloves are recommended. Ensure adequate 

ventilation. Wear an appropriate particulate respirator in accordance with 29 CFR 1910.134 or CSA 

Standard Z94.4-M1982 for dust exposure that may exceed exposure limits. Area and/or personal air 

monitoring is recommended to determine whether exposures are below permissible limits. If exposure to 

phosphine and arsine is suspected (see section 10), or if adequate ventilation is not possible, then a self 

contained breathing apparatus or an air supplied respirator is recommended. 

OCCUPATIONAL EXPOSURE LIMITS (OSHA and ACGIH): 

8-hour TWA (mg/m3

) 

Total inhalable dust 

Aluminum Oxide Fume 

Magnesium Oxide Fume 

Iron Oxide Fume 

Respirable dust 

Manganese 

Phosphine gas (PH3) 

Arsine gas (AsH3) 

OSHA PEL ACGIH TLV 

15 10 

15 10 

10 10 

10 5 

5 3 

5 (ceiling) 0.2 

0.4 0.42 

0.2 0.16 

9. PHYSICAL AND CHEMICAL PROPERTIES 

Physical State: 

Color: 

Odor: 

Solubility: 

Melting Point (°C): 

Specific Gravity (water = 1 ): 

10. STABILITY AND REACTIVITY 

GENERAL: 

Lump, non uniform size 

Light green with brown to black coating 

Odorless 

Insoluble in Water 

Approx. 1 093°C to 1232°C ( silicomanganese alloy) 

Variable 

Silicomanganese slag is stable and hazardous polymerization will not occur. 

CONDITIONS TO AVOID: 

Addition of wet material to molten metal may cause explosions. 

MATERIALS TO AVOID: 

Avoid contact with water and/or acids. 

HAZARDOUS REACTION/DECOMPOSITION PRODUCTS: 

Highly flammable hydrogen gas (H2) and the highly flammable and very toxic gases phosphine and arsine 

(garlic-like smell), both heavier than air, may be formed if silicomanganese slag comes in contact with 

moisture, acids or bases. Contact with acids (pH<7) may result in generation of silane (SiH4), a 

spontaneously combustible gas. Wet product will form highly flammable hydrogen gas if added to molten 

metal, due to decomposition of water. 

EMI-SiMnSiag 
MATERIAL SAFETY DATA SHEET 

Silicomanganese Slag 

Page 4 of 5 

11. TOXICOLOGICAL INFORMATION 

ACUTE EFFECTS: 

INHALATION: 

MSDS No.: EMI-SiMnSiag 

Revised: February 25, 2009 

Finely divided dust may irritate and dehydrate mucous membranes. Phosphine/arsine may be 

absorbed from dust deposited on mucous membranes. The toxic mechanism for phosphine is not 

clear. Phosphine irritates exposed mucous membranes, depresses the central nervous system 

(CNS) and can cause edema of the lungs. Acute, non-fatal poisoning with phosphine gives temporary 

effects, including but not limited to headache, malaise, vomiting, stomach pains, cough, and difficulty 

in breathing. Symptomatic treatment: Corticosteroids, prophylactic for edema of the lungs. 

SKIN CONTACT: 

Frequent or prolonged contact may irritate the skin and cause a skin rash (dermatitis). 

EYE CONTACT: 

Dust may irritate and cause dryness but will not permanently injure eye tissue. 

INGESTION: 

Minimal hazard in normal industrial use. 

CHRONIC EFFECTS: 

Manganese poisoning (Manganism) can occur from excessive intake of manganese via inhalation and 

ingestion. The most notable effects of manganese poisoning are central nervous system disorders which 

may occur as early as six months after initial exposure. Symptoms include apathy, drowsiness, sleep 

disturbance, muscular twitching, spastic gait, and emotion control problems. Permanent injury of the 

central nervous system may occur if chronic manganese poisoning is not treated. 

Prolonged exposure (years) to phosphine may lead to chronic effects such as difficulty in movement and 

speech problems. Epidemiological studies in the Norwegian ferroalloy industry have neither shown an 

increased rate of mortality, nor an increased incidence of cancer. 

Fumes produced through heating metal to high temperatures may be associated with pneumoconiosis. 

Silicomanganese slag is not known to be a reproductive toxin, teratogen, or mutagen. 

12. ECOLOGICAL INFORMATION 

Silicomanganese slag is not characterized as a hazard to the land. 

13. DISPOSAL CONSIDERATIONS 

Avoid repackaging wet material in sealed containers. Dispose of in accordance with applicable federal, 

state, and local regulations. Silicomanganese slag is not a listed or characteristic RCRA Hazardous 

Waste (40 CFR 261). 

14. TRANSPORT INFORMATION 

DOT (DEPARTMENT OF TRANSPORTATION): 

Proper Shipping Name: Not Regulated 

Hazard Class: Not Regulated 

I. D. Number and Initials: Not Regulated 

Packing Group: Not Regulated 

Label(s): Not Regulated 

EMI-SiMnSiag 
MATERIAL SAFETY DATA SHEET 

Silicomanganese Slag 

Page 5 of 5 

15. REGULATORY INFORMATION 

MSDS No.: EMI-SiMnSiag 

Revised: February 25, 2009 

OSHA (Occupational Safety and Health Administration) 

Hazardous by definition of hazardous communication standard (29 CFR 1910.1200) 

TSCA (Toxic Substance Control Act): 

Components of this product are listed on the TSCA Inventory. 

CERCLA (Comprehensive Response Compensation, and Liability Act): 

Silicomanganese slag is not found in "List of Hazardous Substances and Reportable Quantities" ( 40 CFR 

302.4 ). No RQ has been assigned for the generic or broad class of "Manganese and Compounds". 

RCRA (Resource Conservation/Recovery Act): 

Silicomanganese slag is not a listed hazardous waste. 

SARA TITLE Ill (Superfund Amendments and Reauthorization Act); 

EPCRA (Emergency Planning and Community Right to Know Act): 

311/312 Hazard Categories: 

Immediate Health, Delayed Health, Fire. 

313 Reportable Ingredients: 

Manganese Compounds 

CALIFORN lA PROPOSITION 65: 

This product contains chemical(s) known to the State of California to cause cancer: 

None 

16. OTHER INFORMATION 

Literature references are available upon request from the manufacturer. 

The information presented in this Material Safety Data Sheet relates to this specific material. It may not be 

valid for this material if used in combination with any other materials or in any process. It is the user's 

responsibility to verify the suitability and completeness of this information for the particular use intended. 

EMI-SiMnSiag 
MATERIAL SAFETY DATA SHEET 

Silicomanganese Alloys 

Page 1 of 5 

MSDS No.: EMI-MA4001 

Revised: February 25, 2009 

1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION 

Product Identifier: 

Product Code: 

Silicomanganese; Ferromanganese Silicon; Silico 

MA400 1, MA4005, MA500 1 

MANUFACTURER: Eramet I Comilog 

Airport Office Park, Bldg. 4, 333 Rouser Road 

Moon Township, PA 15108-2749 

U.S. Phone Number: (800) 388-7025 

EMERGENCY TELEPHONE NUMBER: CHEMTREC (800) 424-9300 

2. COMPOSITION/INFORMATION ON INGREDIENTS 1 

Manganese 

Silicon 

Iron 

Carbon 

Chromium 

Nickel 

wt.% 

<68 

< 33 

< 5.0 

< 2.0 

< 0.5 

< 0.5 

CAS Registry # 

7439-96-5 

7440-21-3 

7439-89-6 

7440-44-0 

7440-47-3 

7440-02-0 

OSHA HAZARDOUS COMPONENTS (29 CFR 1910.1200): 

Manganese 

Chromium 

Nickel 

EXPOSURE LIMITS 8 hrs. TWA (mg/m3

) 

OSHA PEL ACGIH TLV 

5 (ceiling) 0.2 

0.5 0.5 

1 1 

1 Elemental analysis of the alloy. The manufacturer can provide a more detailed analysis, including other trace elements. 

3. HAZARDS IDENTIFICATION 

This product does not represent a significant hazard to health, safety or the environment when handled 

and stored as advised (see Section 7). Repeated, long term inhalation of silicomanganese alloy dust in 

excess of exposure limits may cause adverse health effects (see Section 11 ). Flammable and noxious 

gases may be formed in contact with moisture and/or acids (see Sections 10 and 11 ). Silicomanganese 

alloy dust suspended in air may under certain conditions cause dust explosions (see Section 5). 

4. FIRST AID MEASURES 

INHALATION: 

Emergency Responders should use the appropriate respiratory protection when moving an affected victim 

to fresh air. Give artificial respiration if breathing has stopped. Call for prompt medical attention. (See 

Section 11) 

SKIN CONTACT: 

Wash skin with water and/or a mild detergent. If irritation develops, seek medical attention. 

EYE CONTACT: 

Rinse eyes with large amounts of water/saline solution until no particles remain in eye. See a physician 

on persistent feeling of discomfort or if irritation occurs. 

INGESTION: 

Incidental ingestion of small quantities of material fines as a result of inattention to proper personal 

hygiene does not represent a significant acute hazard. If large amounts are swallowed, get prompt 

medical attention. 

09-EMI-MA4001 The Manganese Source® 
MATERIAL SAFETY DATA SHEET 

Silicomanganese Alloys 

Page 2 of 5 

5. FIRE FIGHTING MEASURES 

COMBUSTIBILITY: 

MSDS No.: EMI-MA4001 

Revised: February 25, 2009 

Silicomanganese alloy, as packaged, is not combustible. When suspended in air, dust of 

silicomanganese alloy can be ignited, will propagate flame readily, and may generate considerable 

pressure and/or a mild explosion. Avoid generating sparks or ignition sources in areas of high airborne 

dust levels or in areas with accumulated dust. The degree of combustibility in air is dependent upon 

particle size, oxide coating, and quality of dispersion. The hazard increases with particle fineness. 

Thoroughly clean areas or equipment to be maintained prior to dust disturbing or ignition source 

generation activities. (see Section 1 0) 

AUTO IGNITION TEMPERATURE (dust layer): 

Silicomanganese alloy - 550°F (290°C). 

LOWER EXPLOSIVE LEVEL: 

Silicomanganese alloy- Greater than 400 g/m3

. 

COMBUSTION PRODUCTS: 

Oxides of constituent elements. 

MINIMUM IGNITION ENERGY: 

Manganese metal- 80 millijoules; silicomanganese alloys- not available. 

EXTINGUISHING MEDIA: 

Class D fire: Use dry powder, dry sand, or C02 to smother fire. Fire may also be isolated and allowed to 

burn itself out. Do not disturb metal while extinguishing the fire. Nitrogen blanket may not extinguish a 

silicomanganese fire. 

6. ACCIDENTAL RELEASE MEASURES 

LAND SPILL: 

Silicomanganese alloy spilled on the land represents minimal hazard. Cleanup personnel should wear 

appropriate respiratory protective equipment when addressing fine material. 

Avoid the use of compressed air to maneuver spills or leaks of fine material. Fine material should be 

swept up or vacuumed using explosion-proof equipment. Keep dry material and wet material separated. 

Place recovered material in disposal container. Avoid repackaging wet materials in sealed containers. 

WATER SPILL: 

Remove spilled product from water body by dipping, filtering, or other appropriate means. Avoid 

repackaging wet materials in sealed containers. 

7. HANDLING AND STORAGE 

HANDLING: 

Avoid handling that generates dust build-up. Avoid inhalation of dust (see Section 8). Avoid ignition 

sources (e.g. welding) in areas with high dust concentrations. Addition of wet product to molten metal 

may cause explosions (see Section 1 0). 

STORAGE: 

Silicomanganese alloy should be stored in a dry location at ambient temperatures. Avoid contact with 

hydrochloric acid (HCI) and nitric acid (HN03). 

8. EXPOSURE CONTROLS/PERSONAL PROTECTION 

ENGINEERING CONTROLS: 

The use of local exhaust ventilation is recommended to control emissions near the source. Provide 

appropriate ventilation of confined spaces. Use explosion-proof ventilation equipment. See Section 2 for 

Component Exposure Guidelines. 

09-EMI-MA4001 
MATERIAL SAFETY DATA SHEET 

Silicomanganese Alloys 

Page 3 of 5 

PERSONAL PROTECTION: 

MSDS No.: EMI-MA4001 

Revised: February 25, 2009 

Eye protection, eye flushing facilities and protective gloves are recommended. Ensure adequate 

ventilation. Wear an appropriate particulate respirator in accordance with 29 CFR 1910.134 or CSA 

Standard Z94.4-M1982 for dust exposure that may exceed exposure limits. Area and/or personal air 

monitoring is recommended to determine whether exposures are below permissible limits. If exposure to 

phosphine and arsine is suspected (see Section 1 0), or if adequate ventilation is not possible, then a self 

contained breathing apparatus or an air supplied respirator is recommended. 

OCCUPATIONAL EXPOSURE LIMITS (OSHA and ACGIH): 

8-hour TWA (mg/m3

) 

OSHA PEL ACGIH TLV 

Total inhalable dust 

Respirable dust 

Manganese 

Chromium 

Nickel 

Phosphine gas (PH3 ) 

Arsine gas (AsH3) 

15 10 

5 3 

5 (ceiling) 0.2 

0.5 0.5 

1 1 

0.4 0.42 

0.2 0.16 

9. PHYSICAL AND CHEMICAL PROPERTIES 

Physical State: 

Color: 

Odor: 

Solubility: 

Melting Point (°C): 

Specific Gravity (water = 1 ): 

10. STABILITY AND REACTIVITY 

GENERAL: 

Powder (30 M x D or finer), Granule, or Lump 

Silvery metallic with brown to black oxide coating 

Odorless 

Insoluble in Water 

Approx. 1 093°C to 1232° 

Approx. 6.0 to 6.7 

Silicomanganese alloy is stable and hazardous polymerization will not occur. 

CONDITIONS TO AVOID: 

Avoid generating sparks and other ignition sources (e.g. welding) in areas with high dust concentrations. 

Silicomanganese alloy particles suspended in air can cause dust explosions. Addition of wet material to 

molten metal may cause explosions. 

MATERIALS TO AVOID: 

Avoid contact with water and acids. 

HAZARDOUS REACTION/DECOMPOSITION PRODUCTS: 

Highly flammable hydrogen gas (H2) and the highly flammable and very toxic gases phosphine and arsine 

(garlic-like smell), both heavier than air, may be formed if silicomanganese alloy comes in contact with 

moisture, acids or bases. Contact with acids (pH<7) may result in generation of silane (SiH4), a 

spontaneously combustible gas. Wet product will form highly flammable hydrogen gas if added to molten 

metal, due to decomposition of water. 

11. TOXICOLOGICAL INFORMATION 

ACUTE EFFECTS: 

INHALATION: 

Finely divided dust may irritate and dehydrate mucous membranes. Phosphine/arsine may be 

absorbed from dust deposited on mucous membranes. The toxic mechanism for phosphine is not clear. 

Phosphine irritates exposed mucous membranes, depresses the central nervous system (CNS) and 

can cause edema of the lungs. Acute, non-fatal poisoning with phosphine gives temporary effects, 

including but not limited to headache, malaise, vomiting, stomach pains, cough, and difficulty in 

breathing. Symptomatic treatment: Corticosteroids, prophylactic for edema of the lungs. 

09-EMI-MA4001 
MATERIAL SAFETY DATA SHEET 

Silicomanganese Alloys 

Page 4 of 5 

SKIN CONTACT: 

MSDS No.: EMI-MA4001 

Revised: February 25, 2009 

Frequent or prolonged contact may irritate the skin and cause a skin rash (dermatitis). 

EYE CONTACT: 

Dust may irritate and cause dryness but will not permanently injure eye tissue. 

INGESTION: 

Minimal hazard in normal industrial use. 

CHRONIC EFFECTS: 

Manganese poisoning (Manganism) can occur from excessive intake of manganese via inhalation and 

ingestion. The most notable effects of manganese poisoning are central nervous system disorders which 

may occur as early as six months after initial exposure. Symptoms include apathy, drowsiness, sleep 

disturbance, muscular twitching, spastic gait, and emotion control problems. Permanent injury of the 

central nervous system may occur if chronic manganese poisoning is not treated. 

Prolonged exposure (years) to phosphine may lead to chronic effects such as difficulty in movement and 

speech problems. Epidemiological studies in the Norwegian ferroalloy industry have neither shown an 

increased rate of mortality, nor an increased incidence of cancer. 

Fumes produced through heating metal to high temperatures may be associated with pneumoconiosis. 

Silicomanganese alloys are not known to be reproductive toxins, teratogens, or mutagens. 

POTENTIAL HEALTH EFFECTS: 

This product contains chromium in the metallic state. The International Agency for Research on Cancer 

has determined that chromium and certain chromium compounds are "casually associated with cancer in 

humans" but "the compounds responsible for the carcinogenic effect in humans cannot be specified". 

This requires that chromium in all forms be identified as carcinogenic under OSHA The American 

Conference of Governmental Industrial Hygienists has reviewed the available data and concluded that 

specific water soluble and insoluble hexavalent chromium compounds are carcinogenic to humans. 

NIOSH/OSHA "Guide for Chemical Hazards" conclusions are consistent with ACGIH; however, NIOSH 

recommended that all hexavalent chromium compounds be considered carcinogenic until proven 

otherwise. No recommendations have been made by ACGIH or NIOSH to include chromium metal or 

chromous and chromic salts as carcinogenic. 

The International Agency for Research on Cancer has determined that nickel and certain nickel 

compounds are "probably carcinogenic to humans" but the nickel compounds responsible for the effect 

have not been specified. This requires that nickel in all forms be identified as carcinogenic under OSHA 

The American Conference of Governmental Industrial Hygienists has reviewed the available data and 

concluded that not all forms of nickel are carcinogenic. The American Industrial Hygiene Association has 

also concluded that there is no epidemiological evidence of increased risk of respiratory cancer in the 

refining of oxide ores or "in any other specifically nickel occupational exposures". 

12. ECOLOGICAL INFORMATION 

Although silicomanganese alloy is not characterized as a hazard to the land through bulk storage or 

similar activities, care should be taken to minimize airborne dust generation and prevent material 

contamination of water systems. 

13. DISPOSAL CONSIDERATIONS 

Avoid repackaging wet material in sealed containers. Dispose of in accordance with applicable federal, 

state, and local regulations. Silicomanganese alloy is not a listed or characteristic RCRA Hazardous 

Waste (40 CFR 261). 

09-EMI-MA4001 
MATERIAL SAFETY DATA SHEET 

Silicomanganese Alloys 

Page 5 of 5 

14. TRANSPORT INFORMATION 

MSDS No.: EMI-MA4001 

Revised: February 25, 2009 

DOT (DEPARTMENT OF TRANSPORTATION): 

Proper Shipping Name: Not Regulated 

Hazard Class: Not Regulated 

I. D. Number and Initials: Not Regulated 

Packing Group: Not Regulated 

Label(s): Not Regulated 

15. REGULATORY INFORMATION 

OSHA (Occupational Safety and Health Administration) 

Hazardous by definition of hazardous communication standard (29 CFR 1910.1200) 

TSCA (Toxic Substance Control Act): 

Components of this product are listed on the TSCA Inventory. 

CERCLA (Comprehensive Response Compensation, and Liability Act): 

Silicomanganese alloy is not found in "List of Hazardous Substances and Reportable Quantities" ( 40 CFR 

302.4). No RQ has been assigned for the generic or broad class of "Manganese and Compounds". 

RCRA (Resource Conservation/Recovery Act): 

Silicomanganese alloy is not a listed hazardous waste. 

SARA TITLE Ill (Superfund Amendments and Reauthorization Act); 

EPCRA (Emergency Planning and Community Right to Know Act): 

311/312 Hazard Categories: 

Immediate Health, Delayed Health, Fire. 

313 Reportable Ingredients: 

Manganese (CAS No. 7439-96-5) 

Chromium (CAS No. 7440-47-3) 

Nickel (CAS No. 7440-02-0) 

CALIFORNIA PROPOSITION 65: 

This product contains chemical(s) known to the State of California to cause cancer: 

Nickel 

16. OTHER INFORMATION 

Literature references are available upon request from the manufacturer. 

The information presented in this Material Safety Data Sheet relates to this specific material. It may not be 

valid for this material if used in combination with any other materials or in any process. It is the user's 

responsibility to verify the suitability and completeness of this information for the particular use intended. 

09-EMI-MA4001 
------

Emission 

Point ID (a) 

P901 E1 

P908 E1 

P901 E2 

P917 E1 

P917 E2 

P917 E3 

P909/F012 E2 

EPA INFORMATION COLLECTION REQUEST FOR 

FERROALLOYS PRODUCTION MANUFACTURING EMISSION POINTS 

SECTION 2. PLANT OPERATIONS 

Table 2D: Controlled Emission Point Modeling Parameters (Point Sources) 

Release Stack 

Description Latitude Longitude Diameter Height (m) (m) 

Furnace 1 Baghouse Outlet 39.370311 -81.520314 33 3.04 

Furnace 12 Scrubber Outlet 39.369026 -81.525646 37.49 2.4 

Furnace 1 Tapping Baghouse 39.370162 -81.521323 29.29 1.59 

C2P Crushing/Sizing Baghouse 1 39.368387 -81.525507 8.99 1.16 

C2P Crushing/Sizing Baghouse 2 39.368387 -81.525507 8.99 1.16 

C2P Crushing/Sizing Baghouse 3 39.368387 -81.525507 8.99 1.16 

MOR Process Baghouse Outlet 39.368810 -81.527191 13.41 1.62 --L__ ___ --- - --- - -- ---- - ----- --- -

(a) Please use the same Emission Point ID as used in previous ICR submittals, where possible. 

11 

Velocity Exhaust 

Temperature (m/s) (degrees K) 

11.61 352 

18.81 330.4 

11.52 317.6 

21.18 301.5 

21.18 301.5 

21.18 301.5 

0.73 295.37 ---
EPA INFO~ATION QOLLECTI01~ REQUEST FOR FERROALLOYS PRODUCTION MANUFACTURING 

EMISSION POINTS 

SECTION 2. PLANT OPERATIONS 

Table 2E: Building Roof Vent & Other Fugitive Emissions Modeling Parameters (Area Sources) 

Unit Operation Name and Process Diagram ID (a): 

Release Parameters for Risk Modeling (b) 

Emission Release 

Points Description Coordinates Height Dimension of Source (c) 

(a) x (length, 

Latitude Longitude (m) m) 

F007 F1 Furnace # 1 casting 39.369946 -81.521226 30.5 3.05 

F008 F1 Furnace #12 casting 39.369059 -81.524681 30.5 3.05 

F009 F1 MOR casting 39.368022 -81.528329 30.5 3.05 

F007 F1 Furnace #1 Fugitives 39.369946 -81.521226 30.5 3.05 

F008 F1 Furnace #12 Fugitives 39.369059 -81.524681 30.5 3.05 

F007 F1 Furnace #1 Tapping Fugitives 39.369946 -81.521226 30.5 3.05 

F008 F1 Furnace #12 Tapping Fugitives 39.369059 -81.524681 30.5 3.05 

C2P Crushing and Sizing Fugitives 39.368693 -81.525554 30.5 3.05 

F009 F1 MOR Process Fugitives 39.368022 -81.528329 30.5 3.05 

(a) Please use the same Emission Point ID as used in previous ICR submittals, where possible. 

(b) For each building vent with potential to release fugitive emissions, enter the applicahle information. 

(c) Dimension of source refers to the area defined as a nonpoint source emission (e.g., roof vent). 

(d) The angle of rotation specifies the rotation of the source from north (in the clockwise direction). 

12 

y (width, 

m) 

68 

71 

43 

68 

71 

68 

71 

71 

43 

Angle of 

Rotation (d) 

(degrees) 

60 

60 

60 

60 

60 

60 

60 

60 

60