## ENCLOSURE 1
INFORMATIONCOLLECTIONREQUESTFOR



## ·FERROALLOYSPRODUCTION MANUFACTURINGEMISSIONPOINTS
The Environmental ProtectionAgency's (EPA) Office ofAir andRadiation (OAR) is conducting this information collection request to assist the EPA Administrator in developing emission standards for Ferroalloys ProductionManufacturingEmissionPoints under CleanAirAct (CAA) section 112. The surveyis being sent underthe authority ofSection 114 ofthe 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 oxygenrefining, and ladle treatment orladleraking.
CAA section 114(a) states that the Administrator may require any owner or operator subject to anyrequirement ofthis 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 ofemissions 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 ofthe 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 ofthis packet (CAA section 114 letter) and described inmore detail in Enclosure 2.

1

## DIRECTIONS: 

## All recipients must complete and return Enclosure 1byMarch 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 reportingyear 

## (unless otherwisenoted). 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 anon-confidential version. To avoid duplicate data and ensure that all data for a particular facility is consolidated, please submit all ofthe data requested from your facility in the same manner. To submit your data, mail a CD orDVD containing an electronic copyofall requested files to the EPA address below:
U.S. EnvironmentalProtectionAgency Office ofAir QualityPlanning and Standards U.S. EPAMailroom (D243-02) Attn: Mr. Conrad Chin 109 T.W. AlexanderDrive 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 ofyour 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 ofMr. Roberto Morales at the following address:
U.S. Environmental Protection Agency Office ofAir QualityPlanning and Standards U.S. EPAMailroom (C404-02) Attn: Mr. Roberto Morales, Document Control Officer 109 T.W. AlexanderDrive Research Triangle Park, NC 27711
For the security ofyour 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 SURVEYNO LATERTHANMARCH 30, 2013

CONFIDENTIALBUSINESS INFORMATION (CBI): Pleaseindicate if

## anyCBI is includedinthis surveyresponse: •Yes ONo

PARTI. OWNERINFORMATION


## 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 streetaddress offacility (physicallocation):


## a. Address: 

## Jb 10.1- SiB£

# /?oule. 7 

# Sourh b. 

## City:
c. State: 

# Oh/o d. Zip:
e. County:

3. MailingAddress 

## (ifdifferent from Facility StreetAddress):
a. Address: 

# P0

. 

# 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. TelephoneNumber: ( ) 

# 7fo .3

# 71//.3/,/p 

## Ext



## ------- d. Fax Number: ( ) 

## Zf/0 37¢-1:30,£

e. E-mail:

# Jobo.lz~rli

## erli02tfljY'I21..lj2•cpm

5. FacilityDescription:

a. Number ofFacilityEmployees: Number ofemployees 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 temporaryemployees ifthey are a significant fraction of yourtotal numberofemployees.

b. Number ofCorporate Employees: Approximate number ofemployees ofthe business enterprise that owns this plant, including where applicable, the parent company and all subsidiaries, branches, and unrelated establishments ownedbythe parent company.**I~** ()/2f2



## 6. PermitConditions: Ifany ofthe ferroalloys production operations at your facility are subject to State or local air permit limits, please provide a copy ofyour current operating permit. Ifyou have a title V permit and it is not available online, pleaseprovide a copyofit. Ifyourtitle V permitrenewal is stillpending, pleaseprovide a copyofyourpermit application.

5 

## L__

______________

## PART II. GENERAL FACILITYINFORMATION
1. 

## SummaryofFerroalloyProduction Unit Operations Complete the process summaryin

## Table 2A for 

## 2012 for all unit operations at your plant covered by the ferroalloys production source category. These include storage and handling ofraw materials and products. 

# c..az**~I**m£,./j P::.o/2- 

## 77/'.SL£.**~A.** 

### 2. 

## SummaryofRawMaterials Complete the summary ofraw materials used, in 

## Table2B. Include available information on the components included in the furnace charges for each product, and indicate approximatelyhowmuch ofeachwas 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. Describethe factors that are important in the selection oftheraw material.


## 3. SummaryofProducts & 

## ProductionVolume Complete the summary of products and production volume in 

## Table 2C. List the products, co-products, and by-products and indicate how much ofeach was produced in each ofthe last 3 years. 

## C.B.Z C

### t.-/1' P'J£./.) 

### ;:::D/2 })9&£ 

# ..<c...
. 4. Verification ofArea andPointSourceModelingParameters 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 ScrubberDescription 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

. COSTESTIMATES
1. Costs to ImplementEnhancedLocal Capture at ErametMarietta Pleaseprovide estimates ofcapital and annual costs to implementthe enhancedlocal capture system described in your transmittal ofJuly 2, 2012. Using that transmittal and otherinformationprovided byyou, we have developedthe following draft scenario ofpotential improvements that couldbe undertaken for each ofthe majoremissionpoints atthe facility. Pleasereviewthis listandnotifyus if you would suggest any changes to this listofcapture and control scenarios. Then,provide estimated



### 6

### coststo design, purchase, install and operateeach element, including expensesprojected for 2013 and beyond. 

### Furnace 1: • Tap hoodupgrade (extendhood overladle, add partial enclosure); • Add tapping ladle cart system; • Add retractable hood for ladle rake-off;
• Cast hood upgrades (add fixed hood at mid-point ofcasting station, install !-beam bumperat top ofhood);
• Expand capacity offurnace baghouseto accept tapping andraking emissions from Furnace#1;
• Convertthe existingtappingbaghouseto an Furnace #

### 1castingbaghouse Furnace 12: • Taphoodupgrade (extendhood over ladle, addpartial enclosure);
• Add tapping ladle cart system; • Add retractable hood for ladlerake-off; • Cast hoodupgrades (add fixed hood at mid-point ofcasting station, install !-beam bumper at top ofhood); • Add new baghouseto control tapping, casting, ladleraking from Furnace#12. MOR • Cast hood upgrades (increaseheight ofhood inrear, install !-beambumperat front edge ofthe hood, raise existinghorizontal duct, seal duct intakes, install dampers);
• Ladlepouringupgrades (extendhood); • Add roofcapture system to capture secondary fugitive emissions from MOR. Crushing and Sizing- No changes



### 7

L_

___ _ _ _ ____ _

### EMI's transmittal ofJuly 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 estimatesfor 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 ofsuch 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 of5 1. CHEMICAL PRODUCTAND 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 7439-96-5 Iron < 20 7439-89-6 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 ofthe alloy. The manufacturer can provide a more detailed analysis, including othertrace elements.

3. HAZARDS IDENTIFICATION This product does not represent a significant hazard to health, safety orthe environmentwhen handled and stored as advised (see Section 7}. Repeated, long term inhalation offerromanganese alloy dust in excess ofexposure limits may cause adverse health effects (see Section 11). Flammable and noxious gases may be formed in contact with moisture and/oracids (see Sections 10 and 11}. Ferromanganese alloy dust suspended in air may under certain conditions cause dustexplosions (see Section 5}.

4. FIRSTAID MEASURES INHALATION:

Emergency responders should use the appropriate respiratory protection when moving an affected victim to fresh air. Give artificial respiration ifbreathing has stopped. Call for prompt medical attention. (See Section 11} SKIN CONTACT:

Wash skin with water and/ora mild detergent. Ifirritation develops, seek medical attention. EYE CONTACT:

Rinse eyes with large amounts ofwater/saline solution until no particles remain in eye. See a physician on persistentfeeling ofdiscomfort or ifirritation occurs. INGESTION:

Incidental ingestion ofsmall quantities ofmaterial fines as a result of inattention to proper personal hygiene does not represent a significant acute hazard. Iflarge amounts are swallowed, getprompt medical attention.
09-EMI-MA1OOO.doc 

# The Manganese Source®

# MATERIAL SAFETY DATA SHEET Ferromanganese Alloys Page 2 of5 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 ofcombustibility in air is dependent upon particle size, oxide coating, and quality ofdispersion. 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 ofconstituent elements

. MINIMUM IGNITION ENERGY:

Manganese- 80 millijoules; iron- 100 millijoules. EXTINGUISHING MEDIA:

Class Dfire: Use dry powder, dry sand, or C02 to smother fire. Fire may also be isolated and allowed to burn itselfout. 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 ofcompressed air to maneuver spills or leaks offine material. Fine material should be swept up or vacuumed using explosion-proofequipment. Keep dry material and wet material separated. Place recovered material in disposal container. Avoid repackaging wet materials in sealed containers

. WATER SPILL:

Remove spilled productfrom 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 dustformation and generation. Avoid inhalation ofdust (see Section 8). Avoid ignition sources (e.g. welding) in areas with high dust concentrations

. Addition ofwet product to molten metal may cause explosions (see Section 10). 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 exhaustventilation is recommended to control emissions near the source. Provide appropriate ventilation ofconfined spaces. Use explosion-proofventilation equipment. See Section 2 for Component Exposure Guidelines.

09-EMI-MA1000.doc

# MATERIAL SAFETY DATA SHEET MSDS No.: EMI-MA1000 

### Ferromanganese Alloys Page 3 of5 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. Ifexposure to phosphine and arsine is suspected (see section 10), or ifadequate ventilation is not possible, a self contained breathing apparatus or an air supplied respirator is recommended. OCCUPATIONAL EXPOSURE LIMITS (OSHA and ACGIH): 8-hourTWA (mq/m3) Total inhalable dust Respirable dust Manganese Chromium Nickel Phosphine gas (PH3) Arsine gas (AsH 3) 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 ofwet material to molten metal may cause explosions. MATERIALS TO AVOID:

Avoid contact with water and/or acids. HAZARDOUS REACTION/DECOMPOSITION PRODUCTS:

Highlyflammable hydrogen gas (H 2) and the highly flammable and very toxic gases phosphine and arsine (garlic-like smell), both heavierthan air, may be formed ifferromanganese alloy comes in contact with moisture, acids orbases. Contact with acids (pH<?) may result in generation ofsilane (SiH 4), a spontaneously combustible gas. Wet product will form highly flammable hydrogen gas if added to molten metal, due to decomposition ofwater.



### 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 ofthe 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 ofthe lungs. 09-EMI-MA1 OOO.doc

# MATERIAL SAFETY DATA SHEET Ferromanganese Alloys Page 4 of5
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, musculartwitching, spastic gait, and emotion control problems. Permanent injury ofthe central nervous system may occur ifchronic 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 ofcancer. 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 ofGovernmental 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 consistentwith 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 ofoxide 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 ofwater 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-EM1-MA1000.doc

# MATERIAL SAFETY DATA SHEET Ferromanganese Alloys Page 5 of5 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. Numberand 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 ofthis 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. SARATITLE 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 requestfrom 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-MA1 OOO.doc

# MATERIAL SAFETY DATA SHEET Ferromanganese Slag Page 1 of4 MSDS No.: EMI-FeMnSiag Revised: February 24,2009 

# ERAMET 

# (CDHftDG

1. CHEMICAL PRODUCTAND 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 ofthe slag. The manufacturer can provide a more detailed analysis, including othertrace elements. 

### 3. HAZARDS IDENTIFICATION This product does not represent a significant hazard to health, safety orthe environmentwhen 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 offerromanganese 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. FIRSTAID 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 ofwater/saline solution until no particles remain in eye. See a physician on persistent feeling ofdiscomfort or if irritation occurs. INGESTION: Incidental ingestion ofsmall 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 of4 

### 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, dustofferromanganese can be ignited, will propagate flame readily, and may generate considerable pressure and/ora mild explosion. Avoid generating sparks or ignition sources in areas ofhigh airborne dust levels or in areas with accumulated dust. The degree of combustibility in air is dependent upon particle size, oxide coating, and quality ofdispersion. The hazard increases with particle fineness

. Thoroughly clean areas or equipment to be maintained priorto 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/m 3; 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 ofcompressed air to maneuver spills or leaks offine 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 productfrom water body by dipping, filtering, orother appropriate means. Avoid repackaging wet materials in sealed containers. 

### 7. HANDLING AND STORAGE HANDLING: Avoid handling that generates dust build-up. Avoid inhalation ofdust (see Section 8). Addition ofwet product to molten metal may cause explosions (see Section 10). STORAGE: Ferromanganese slag should be stored in a dry location atambient temperatures. Avoid contact with hydrochloric acid (HCI) and nitric acid (HN03). 

### 8. EXPOSURE CONTROLS/PERSONAL PROTECTION ENGINEERING CONTROLS: The use of local exhaustventilation is recommended to control emissions nearthe source. Provide appropriate ventilation of confined spaces. Use explosion-proofventilation 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-FeMnSlag.doc

# MATERIAL SAFETY DATA SHEET Ferromanganese Slag Page 

### 3 of4 MSDS No.: EMI-FeMnSiag Revised: February 24, 2009

OCCUPATIONAL EXPOSURE LIMITS (OSHA and ACGIH): 8-hourTWA (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. STABILITYAND 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 ofwet 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 ifferromanganese slag comes in contactwith moisture, acids or bases. Contactwith acids (pH<?) may result in generation ofsilane (SiH4), a spontaneously combustible gas. Wet productwill form highly flammable hydrogen gas ifadded to molten metal, due to decomposition ofwater. 11. TOXICOLOGICAL INFORMATION ACUTE EFFECTS:

INHALATION: Finely divided dust may irritate and dehydrate mucous membranes. Phosphine/arsine may be absorbed from dustdeposited 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 ofthe 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 ofthe 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 butwill 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 ofthe 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 neithershown an increased rate of mortality, nor an increased incidence ofcancer. 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 of4 

### 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. Numberand 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 ofthis product are listed on the TSCA Inventory. CERCLA (Comprehensive Response Compensation, and Liability Act):

Ferromanganese slag is notfound 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. SARATITLE 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 ofthis information for the particular use intended.

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

CHEMTREC EMERGENCY TELEPHONE: (800) 424-9300 

### MANGANESE ORE (AFRICAN SOURCE)

SECTION 1 PRODUCT INFORMATION TRADENAME: CHEMICALNAME: 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 requiredPersonal Protection. SECTION2 HAZARDOUS INGREDIENTS & EXPOSURE DATA ComilogNorth 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 DustTWA Fume Ceiling FumeSTEL Fume TWA 5mg/M3 (OSHA), 5mg/M3 (CANADA) 3mg/M3 (NIOSH) 1mg/M3(NIOSH), 0.2 mg/M3 (ACGIH) 5mg/M3 (OSHA) 3 mg/M3 (OSHA, NIOSH, CANADA) I m M3 (OSHA, NIOSH, CANADA), 0.2mg/M3 (ACGIH)Revised 7/1/98 Page2 of 8 

### MANGANESE ORE (AFRICAN SOURCE) CHEMTREC EMERGENCYTELEPHONE: (800) 424-9300 SECTION3

SECTION4 INHALATION:

EYES:

SKIN:

INGESTION: 

## I PRECAUTIONARYLABEL INFORMATION \VARNING: CONTAINS MANGANESE- AVOID INHALING DUST Chronic exposure to heavyconcentrations ofmanganese containing dust can cause central nervous system disorders.
j FIRST AID INFORMATION Remove to fresh air. Treat symptoms. Supportbreathing as required. Call a physician. Immediately flush for at least 15 minutes while holding eyelids open to ensure no particles remain in the eye. Ifsymptoms such as irritation develop, consult a physician.
Wash thoroughly with mild soap and water. A shower is recommended ifsignificant dust exposure occurs. Ifswallowed andthe 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 ahistory ofalcoholism, psychiatric, neurologic, pulmonary, or liver disease may be at greater risk ofdeveloping symptoms ofover exposure. NOTE: After first aid, seekprompt, professional medical attention.
NOTE TO PHYSICIAN: Based on the individual reactions ofthe patient, the physician'sjudgement should be used to control symptoms and clinical condition. CAUTION: Ifunconscious, having trouble breathing or in convulsions, do not induce vomiting or give water.

SECTION5 

### I PHYSICALAND CHEMICALPROPERTIES**~----------------------~----------------------------------------------------- ·-** **----------** COLOR: Black FORM: Lumps orpowder ODOR: None SOLUBILITYINWATER: Insoluble (soluble in most acids) SPECIFIC GRAVITY: Approximately4-5 (H20=1) MELTING POINT: 1564°C (will decompose and oxidize ifheated in air above 500°C) FREEZINGPOINT: 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_d** **u_c_t.**_________________________________ ____**~**CHEMTREC EMERGENCY TELEPHONE: (800) 424- 9300 Revised 7/1/98 Page 3 of 8 

### MANGANESE ORE (AFRICAN SOURCE)

SECTION 6 

## IHEALTHEFFECTS INFORMATION PRIMARY ROUTE(S) OF EXPOSURE: INHALATION TARGET ORGAN EFFECTS: LUNGS/PULMONARYFUNCTION, CENTRALNERVOUS SYSTEM SYMPTOMS OF OVER EXPOSURE TO MANGANESE: ACUTE (Short Term Effects) Overexposure can cause mild to moderate irritation to skin, eyes, nose and throat depending on the duration ofcontact. Redness and tearing ofeyes and red, dry skin are possible. Inhalation can result inpulmonaryeffects, 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, whichresemble 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 "manganicpsychosis" are more frequently seen among miners atthis stage. Stage II (clinical/intermediate): Speech becomes slow and stammering with monotonous voice; mask-like faces; excessive salivation; awkward gestures; tremors oftongue, arms, and leg; gait disturbances. StageIII (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 ofthe terminal and respiratory bronchiole. Massive fibrosis is the result ofcoalescence ofnodules 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 ofrespiratory infection and pneumonia: persons with a history ofalcoholism, 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 mppcffor 8hrs/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 of50% ofapopulation

. 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 EXTINGUISHERMEDIA: OTHER HAZARDS: SECTION 9 INCOMPATIBILITY: Drychemical or carbon dioxide extinguishers advised See incompatibility below. 

### I REACTIVITY INFORMATION

Avoid contact with easily oxidizable material. Soluble in hydrochloric acid with evolution ofchlorine. THERMALDECOMPOSITION PRODUCTS: Manganese mayreact with water to produce hydrogen and unsaturated hydrocarbons in the event ofcombustion

.Revised 7/1/98 Page 5 of8

CHEMTRECEMERGENCYTELEPHONE: {800) 424- 9300 

### MANGANESE ORE (AFRICAN SOURCE)

SECTION 10 j PERSONALPROTECTION 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, andmists having a TWAnot less than 0.05 mg/cubic meter. A general dust maskis 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 ofgetting dustparticles in the eyes exists. Gloves orotherprotective clothing recommendedifskin contact is appreciable. If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. The availability ofan eye wash fountain and safety shower is recommended. SECTION 11 J SPILLAND DISPOSALINFORMATION
IN CASE OF TRANSPORTATION ACCIDENTS, CALLTHE 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 ifdry. 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: NotRegulated

.CHEMTREC EMERGENCY TELEPHONE: (800) 424-9300 SECTION 13 

### I REGULATORY INFORMATION The following regulations apply to this product: FEDERALREGULATIONS: OSHA'S HAZARD COMMUNICATION RULE. 29 CFR 1910.1200: Revised 7/1/98 Page 6 of8 

### 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 PELTWA 1mglm3 MANGANESE: Target Organ Effects (Central Nervous System) Ceiling 5 mg/m3 OSHA PEL and ACGIH TLV SILICON: Irritant OSHAPEL and ACGIH TLV

- TWA 10 mg/m3 ALUMINUM OXIDE: Irritant OSHAPEL 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 specifiedin the List ofExtremely Hazardous Substances. EPCRA 311/312/313: ComilogNorth 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 ofthese MSDS'sto 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 annuallybyMarch 1

. Theproduct should be reported under the following EPA Hazardous categories: CHEMICALNAME: Manganese Ore 7439-96-5 CAS#:**-~** Immediate (acute) health hazard**-~** Delayed (chronic) health hazard Fire hazard Sudden release ofpressure hazard Reactive hazard This product is a manganese compound, which is included on the Section 313 list of toxic chemicals

. Owners or operators ofcertain facilities are required to submit annual reports (Form R) ofroutine 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 REGULATORYINFORMATION (continued) TOXIC CHEMICALNAME: 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 EPCRAHotline 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 ofmore than 1 lb

. ofmanganese to the environment via the air mustbe 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 CaliforniaProposition 65. MICHIGAN CRITICAL MATERIALS: This productdoes 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 ofmanganese, this is a WHMIS controlled product under The House ofCommons ofCanadaBill C-70

. Class D, Division 2, SubdivisionB Toxic Material labels are required in Canada.
'--
-------··- ---- ·----- ·--------------------------------'CHEMTRECEMERGENCYTELEPHONE: (800) 424-9300 Revised 7/1/98 Page8 of8 

### MANGANESE ORE (AFRICAN SOURCE)

SECTION 14 

### I ADDITIONAL INFORMATION Store in a clean, well ventilated area away from heat and strong oxidizing agents. Avoid generation ofairborne 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 ofGovernmental Industrial Hygienists, OH. Title 29 Code ofFederal Regulations Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA).

All information, recommendations and suggestions appearing in this bulletin concerningthe use ofour 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 ofthe products described herein. Since the actual use by others is beyond our control, no guarantee, expressed or implied, is made by ComilogNorth America Inc. as to the effects ofsuch use or the results obtained, nor does ComilogNorth America Inc. assume any liability arising out ofuse, by others, ofthe products herein. Nor is the information herein to be confused as absolutely complete since additional information may be necessary or desirable whenparticular or exceptional conditions or circumstances existbecause ofapplicable laws orgovernmentregulations. 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 of5 MSDS No

.: EMI-SiMnSiag Revised: February 25, 2009

1. CHEMICAL PRODUCTAND 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 EMERGENCYTELEPHONE 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/m 3) 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

OSHATable Z3 10 

### 5 2
1 Elemental analysis ofthe slag

. The manufacturercan provide a more detailed analysis, including othertrace elements.

3. HAZARDS IDENTIFICATION This product does not represent a significant hazard to health, safety orthe environmentwhen handled and stored as advised (see Section 7)

. Repeated, long term inhalation ofmanganese dust in excess of exposure limits may cause adverse health effects (see Section 11). Flammable and noxious gases may be formed in contactwith moisture and/oracids (see Sections 10 and 11).

4. FIRSTAID MEASURES INHALATION:

Emergency responders should use the appropriate respiratory protection when moving an affected victim to fresh air. Give artificial respiration ifbreathing has stopped. Call for prompt medical attention

. (See Section 11) SKIN CONTACT:

Wash skin with waterand/ora mild detergent. Ifirritation develops, seek medical attention. EYE CONTACT:

Rinse eyes with large amounts ofwater/saline solution until no particles remain in eye. See a physician on persistentfeeling ofdiscomfort or if irritation occurs
. EMI-SiMnSiag 

# The Manganese Source®

# MATERIAL SAFETY DATA SHEET Silicomanganese Slag Page 2 of5 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 ofdispersion. 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 ofcompressed air to maneuver spills or leaks offine 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 ofdust (see Section 8). Addition ofwet product to molten metal may cause explosions (see Section 10). STORAGE:

Silicomanganese slag should be stored in a dry location at ambienttemperatures. Avoid contact with hydrochloric acid (HCI) and nitric acid (HN03)

EMI-SiMnSiag

# MATERIAL SAFETY DATA SHEET Silicomanganese Slag Page 3 of5 MSDS No.: EMI-SiMnSiag Revised: February 25, 2009

8. EXPOSURE CONTROLS/PERSONAL PROTECTION ENGINEERING CONTROLS:

The use of local exhaustventilation is recommended to control emissions near the source. Provide appropriate ventilation ofconfined spaces. Use explosion-proofventilation 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 ifadequate ventilation is not possible, then a self contained breathing apparatus or an air supplied respirator is recommended. OCCUPATIONAL EXPOSURE LIMITS (OSHA and ACGIH): 8-hourTWA (mg/m 3) Total inhalable dust Aluminum Oxide Fume Magnesium Oxide Fume Iron Oxide Fume Respirable dust Manganese Phosphine gas (PH3) Arsine gas (AsH 3) 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. STABILITYAND 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 notoccur. CONDITIONS TO AVOID:

Addition ofwet material to molten metal may cause explosions. MATERIALS TO AVOID:

Avoid contactwith water and/or acids. HAZARDOUS REACTION/DECOMPOSITION PRODUCTS:

Highly flammable hydrogen gas (H 2) and the highly flammable and very toxic gases phosphine and arsine (garlic-like smell), both heavierthan air, may be formed ifsilicomanganese slag comes in contact with moisture, acids or bases. Contact with acids (pH<7) may result in generation ofsilane (SiH 4), a spontaneously combustible gas. Wet productwill form highly flammable hydrogen gas if added to molten metal, due to decomposition ofwater.

EMI-SiMnSiag

# MATERIAL SAFETY DATA SHEET Silicomanganese Slag Page 4 of5 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 ofthe 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 ofthe 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 occuras early as six months after initial exposure. Symptoms include apathy, drowsiness, sleep disturbance, musculartwitching, spastic gait, and emotion control problems. Permanent injury ofthe central nervous system may occur ifchronic manganese poisoning is nottreated. 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 ofcancer. 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 orcharacteristic 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 of5 

### 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 ofthis product are listed on the TSCA Inventory. CERCLA (Comprehensive Response Compensation, and Liability Act):

Silicomanganese slag is notfound 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. SARATITLE 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 CALIFORNlA 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 of5 MSDS No.: EMI-MA4001 Revised: February 25, 2009

1. CHEMICAL PRODUCTAND COMPANY IDENTIFICATION Product Identifier: Product Code: Silicomanganese; Ferromanganese Silicon; Silico MA4001, MA4005, MA5001 MANUFACTURER: Eramet 

### I Comilog Airport Office Park, Bldg. 4, 333 Rouser Road Moon Township, PA 15108-2749 U.S. Phone Number: (800) 388-7025 EMERGENCYTELEPHONE 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/m 3) OSHA PEL ACGIH TLV 5 (ceiling) 0.2 0.5 0.5 

### 1 1 1 Elemental analysis ofthe alloy. The manufacturer can provide a more detailed analysis, including othertrace elements. 3. HAZARDS IDENTIFICATION This product does not represent a significant hazard to health, safety orthe environment when handled and stored as advised (see Section 7). Repeated, long term inhalation ofsilicomanganese alloy dust in excess ofexposure limits may cause adverse health effects (see Section 11). Flammable and noxious gases may be formed in contactwith moisture and/or acids (see Sections 10 and 11). Silicomanganese alloy dust suspended in air may under certain conditions cause dustexplosions (see Section 5). 4. FIRSTAID MEASURES INHALATION:

Emergency Responders should use the appropriate respiratory protection when moving an affected victim to fresh air
. Give artificial respiration ifbreathing has stopped. Call for prompt medical attention. (See Section 1 1) SKIN CONTACT:

Wash skin with water and/ora mild detergent. If irritation develops, seek medical attention. EYE CONTACT:

Rinse eyes with large amounts ofwater/saline solution until no particles remain in eye. See a physician on persistentfeeling ofdiscomfortor if irritation occurs. INGESTION:

Incidental ingestion ofsmall 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 of5 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 ofcombustibility in air is dependent upon particle size, oxide coating, and quality ofdispersion

. The hazard increases with particle fineness. Thoroughly clean areas or equipmentto be maintained prior to dust disturbing or ignition source generation activities. (see Section 10) AUTO IGN ITION TEMPERATURE (dust layer):

Silicomanganese alloy
- 550°F (290°C). LOWER EXPLOSIVE LEVEL:

Silicomanganese alloy- Greaterthan 400 g/m 3

. 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 itselfout. 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 ofcompressed air to maneuver spills or leaks offine material. Fine material should be swept up orvacuumed 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 productfrom 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 ofwet product to molten metal may cause explosions (see Section 10)

. STORAGE:

Silicomanganese alloy should be stored in a dry location at ambient temperatures

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

8. EXPOSURE CONTROLS/PERSONAL PROTECTION ENGINEERING CONTROLS:

The use of local exhaustventilation is recommended to control emissions near the source
. Provide appropriate ventilation ofconfined spaces. Use explosion-proofventilation equipment. See Section 2 for Component Exposure Guidelines

. 09-EMI-MA4001

# MATERIAL SAFETY DATA SHEET Silicomanganese Alloys Page 3 of5 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. Ifexposure to phosphine and arsine is suspected (see Section 10), or ifadequate ventilation is not possible, then a self contained breathing apparatus or an air supplied respirator is recommended. OCCUPATIONAL EXPOSURE LIMITS (OSHA and ACGIH): 8-hourTWA (mg/m 3) OSHA PEL ACGIH TLV Total inhalable dust Respirable dust Manganese Chromium Nickel Phosphine gas (PH 3) Arsine gas (AsH 3) 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. 1093°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 ofwet material to molten metal may cause explosions. MATERIALS TO AVOID:

Avoid contactwith water and acids. HAZARDOUS REACTION/DECOMPOSITION PRODUCTS:

Highly flammable hydrogen gas (H 2) and the highly flammable and very toxic gases phosphine and arsine (garlic-like smell), both heavierthan air, may be formed ifsilicomanganese alloy comes in contact with moisture, acids or bases. Contact with acids (pH<7) may result in generation ofsilane (SiH 4), a spontaneously combustible gas. Wet product will form highly flammable hydrogen gas if added to molten metal, due to decomposition ofwater. 

### 11. TOXICOLOGICAL INFORMATION ACUTE EFFECTS:

INHALATION:

Finely divided dust may irritate and dehydrate mucous membranes. Phosphine/arsine may be absorbed from dustdeposited 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 ofthe 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 ofthe lungs.

09-EMI-MA4001

# MATERIAL SAFETY DATA SHEET Silicomanganese Alloys Page 4 of5 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, musculartwitching, spastic gait, and emotion control problems. Permanent injury ofthe central nervous system may occur ifchronic manganese poisoning is nottreated. 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 ofcancer. 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 forthe 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 forthe 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 ofoxide 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 similaractivities, care should be taken to minimize airborne dust generation and prevent material contamination ofwater 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 of5 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. Numberand 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 ofthis product are listed on the TSCA Inventory. CERCLA (Comprehensive Response Compensation, and Liability Act):

Silicomanganese alloy is notfound 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. SARATITLE 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 ofCalifornia 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 ofthis information for the particular use intended.

09-EMI-MA4001------ 

### Emission PointID (a)

P901 E1 P908 E1 P901 E2 P917 E1 P917 E2 P917 E3 P909/F012 E2 

### EPAINFORMATION COLLECTIONREQUEST FOR FERROALLOYS PRODUCTIONMANUFACTURINGEMISSIONPOINTS SECTION2. PLANT OPERATIONS Table2D: Controlled Emission PointModeling Parameters (Point Sources)

Release Stack Description Latitude Longitude Diameter Height (m) (m)
Furnace 1Baghouse Outlet 39.370311 -81.520314 33 3.04 Furnace 12 Scrubber Outlet 39.369026 -81.525646 37.49 2.4 Furnace 1TappingBaghouse 39.370162 -81.521323 29.29 1.59 C2P Crushing/SizingBaghouse 1 39.368387 -81.525507 8.99 1.16 C2P Crushing/SizingBaghouse 2 39.368387 -81.525507 8.99 1.16 C2P Crushing/Sizing Baghouse 3 39.368387 -81.525507 8.99 1.16 MORProcess Baghouse Outlet 39.368810 -81.527191 13.41 1.62

-- L__

_ __ --- - --- - -- -- -- - --- - - -- - -



### (a) Pleaseusethe same EmissionPoint ID as used inprevious ICR submittals, wherepossible.

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 FORFERROALLOYS PRODUCTIONMANUFACTURING EMISSIONPOINTS SECTION2. PLANT OPERATIONS Table2E: Building RoofVent & 

### OtherFugitiveEmissions ModelingParameters (Area Sources) Unit Operation Name and Process Diagram ID (a): Release Parameters for Risk Modeling (b) 

### Emission Release

Points Description Coordinates Height Dimension ofSource (c)



### (a) x (length, 

### Latitude Longitude (m) m) F007 F1 Furnace# 1casting 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 TappingFugitives 39.369946 -81.521226 30.5 3.05 F008 F1 Furnace#12 TappingFugitives 39.369059 -81.524681 30.5 3.05 C2P Crushing and SizingFugitives 39.368693 -81.525554 30.5 3.05 F009 F1 MORProcess Fugitives 39.368022 -81.528329 30.5 3.05

(a) Pleaseuse the sameEmissionPointID as usedinprevious ICR submittals, wherepossible. (b) Foreachbuildingventwithpotentialtorelease fugitive emissions, enterthe applicahle information. (c) Dimensionofsourcerefers to the areadefined as a nonpoint source emission (e.g., roofvent). (d) The angle ofrotation specifiestherotation ofthe source from north (inthe clockwisedirection). 

### 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