ATTACHMENT 7: Methylal MSDS

RI
Methylal Pure Grade 

Safety Data Sheet 

according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations 

Date of issue: 01/14/2013 Revision date: 06/19/2013 Supersedes: 01/14/2013 Version: 1.1 

02/07/2014 EN (English US) Page 1 

SECTION 1: Identification of the substance/mixture and of the company/undertaking 

1.1. Product identifier 

Product form : Substance 

Trade name : Methylal Pure Grade 

IUPAC name : dimethoxymethane 

CAS No : 109-87-5 

Product code : 9900 

Formula : C3H8O2 

Chemical structure : 

Synonyms : dimethoxymethane 

1.2. Relevant identified uses of the substance or mixture and uses advised against 

1.3. Details of the supplier of the safety data sheet 

LAMBIOTTE & Cie S.A. 

Grand Rue 79 

Marbehan, 6724 - Belgium 

T +32(0)63410080 - F +32(0)63411698 

sds@lambiotte.com - www.lambiotte.com

1.4. Emergency telephone number 

Emergency number : (800)424-9300 (CHEMTREC) 

SECTION 2: Hazards identification 

2.1. Classification of the substance or mixture 

Classification (GHS-US) 

Flam. Liq. 2 H225 

 

2.2. Label elements 

GHS-US labeling 

Hazard pictograms (GHS-US) : 

GHS02 

 

Signal word (GHS-US) : Danger 

Hazard statements (GHS-US) : H225 - Highly flammable liquid and vapor 

Precautionary statements (GHS-US) : P210 - Keep away from heat, sparks, open flames, hot surfaces. - No smoking 

P233 - Keep container tightly closed 

P240 - Ground/bond container and receiving equipment 

P241 - Use explosion-proof lighting, ventilating, electrical equipment 

P242 - Use only non-sparking tools 

P243 - Take precautionary measures against static discharge 

P280 - Wear eye protection, protective clothing, protective gloves 

P303+P361+P353 - IF ON SKIN (or hair): Remove/Take off immediately all contaminated 

clothing. Rinse skin with water/shower 

P370+P378 - In case of fire: Use alcohol resistant foam for extinction 

P403+P235 - Store in a well-ventilated place. Keep cool 

P501 - Dispose of contents/container to Collection point 

2.3. Other hazards 

No additional information available 

2.4. Unknown acute toxicity (GHS-US) 

No data available 

RI
Methylal Pure Grade 

Safety Data Sheet 

according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

02/07/2014 EN (English US) 2/9 

SECTION 3: Composition/information on ingredients 

3.1. Substance 

Substance type : Mono-constituent 

Name : Methylal pure 

CAS No : 109-87-5 

Name Product identifier % Classification (GHS-US)

Methylal 

(Main constituent) 

(CAS No) 109-87-5 99,5 - 100 Flam. Liq. 2, H225 

AQUA 

(Impurity) 

(CAS No) 7732-18-5 0 - 0,5 Not classified 

Methanol 

(Impurity) 

(CAS No) 67-56-1 0 - 0,005 Flam. Liq. 2, H225 

STOT SE 2, H371 

Formaldehyde (CAS No) 50-00-0 <= 0,0005 Not classified 

Full text of H-phrases: see section 16 

3.2. Mixture 

Not applicable 

SECTION 4: First aid measures 

4.1. Description of first aid measures 

First-aid measures general : Take victim to fresh air, in a quiet place and if necessary take medical advice. 

First-aid measures after inhalation : Obtain medical attention if breathing difficulty persists. 

First-aid measures after skin contact : Wash skin thoroughly with mild soap and water. 

First-aid measures after eye contact : Obtain emergency medical attention if pain, blinking, tears or redness persist. Wash immediately 

with lots of water. 

First-aid measures after ingestion : Seek medical advice. If a large quantity is swallowed, immediately administer lukewarm water 

(1/2 liter) only if victim is completely conscious/alert and induce vomiting. 

4.2. Most important symptoms and effects, both acute and delayed 

No additional information available 

4.3. Indication of any immediate medical attention and special treatment needed 

No additional information available 

SECTION 5: Firefighting measures 

5.1. Extinguishing media 

suitable extinguishing media : Foam. AFFF. Water spray. 

Unsuitable extinguishing media : Do not use a heavy water stream. Dry powder. 

5.2. Special hazards arising from the substance or mixture 

Fire hazard : Highly flammable. 

Explosion hazard : Not applicable. 

Reactivity : Strong acids and oxidants. 

5.3. Advice for firefighters 

Precautionary measures fire : No naked flames, sparks, and do not smoke. 

Firefighting instructions : Do not enter fire area without proper protective equipment, including respiratory protection. 

Protection during firefighting : Use water spray or fog for cooling exposed containers. 

Other information : Exercise caution when fighting any chemical fire. 

SECTION 6: Accidental release measures 

6.1. Personal precautions, protective equipment and emergency procedures 

General measures : Do not smoke. 

6.1.1. For non-emergency personnel 

Emergency procedures : Keep public away. 

6.1.2. For emergency responders 

Protective equipment : Equip cleanup crew with proper protection. Respiratory protection equipment may be necessary.

6.2. Environmental precautions 

Clean up any spills as soon as possible, using an absorbent material to collect it. Prevent entry to sewers and public waters. 

RI
Methylal Pure Grade 

Safety Data Sheet 

according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

02/07/2014 EN (English US) 3/9 

6.3. Methods and material for containment and cleaning up 

For containment : Use suitable disposal containers. 

Methods for cleaning up : Clean up any spills as soon as possible, using an absorbent material to collect it. 

6.4. Reference to other sections 

No additional information available 

SECTION 7: Handling and storage 

7.1. Precautions for safe handling 

Additional hazards when processed : No naked lights. No smoking. 

Precautions for safe handling : Ground well. Use only non-sparking tools. Use special care to avoid static electric charges. 

Hygiene measures : Do not eat, drink or smoke during use. 

7.2. Conditions for safe storage, including any incompatibilities 

Technical measures : Provide local exhaust or general room ventilation to minimize mist and/or vapor concentrations. 

Storage conditions : Keep container closed when not in use. 

Incompatible products : Strong acids and oxidants. 

Incompatible materials : Heat sources. 

Storage temperature : -30 / 40 °C 

7.3. Specific end use(s) 

No additional information available 

SECTION 8: Exposure controls/personal protection 

8.1. Control parameters 

Methylal Pure Grade (109-87-5) 

USA OSHA OSHA PEL (TWA) (mg/m3) 3100 mg/m3 8h [29 CFR 1910.1000 (7/1/90]**peer 

reviewed**(ToxNET) 

USA OSHA OSHA PEL (TWA) (ppm) 1000 ppm 8h [29 CFR 1910.1000 (7/1/90]**peer 

reviewed**(ToxNET) 

Threshold Limit Values: 

8 hr Time Weighted Avg (TWA): 1000 ppm. 

[American Conference of Governmental Industrial Hygienists TLVs and BEIs. Threshold Limit Values for Chemical Substances and Physical Agents and 

Biological Exposure Indices. Cincinnati, OH, 2008, p. 39] **QC REVIEWED** 

Excursion Limit Recommendation: Excursions in worker exposure levels may exceed 3 times the TLV-TWA for no more than a total of 30 minutes during 

a work day, and under no circumstances should they exceed 5 times the TLV-TWA, provided that the TLV-TWA is not exceeded. 

[American Conference of Governmental Industrial Hygienists TLVs and BEIs. Threshold Limit Values for Chemical Substances and Physical Agents and 

Biological Exposure Indices. Cincinnati, OH, 2008, p. 5] **QC REVIEWED** 

NIOSH Recommendations: 

10 hr Time-Weighted avg: 1,000 ppm (3,100 mg/cu m). 

[NIOSH. NIOSH Pocket Guide to Chemical Hazards. DHHS (NIOSH) Publication No. 94-116. Washington, D.C.: U.S. Government Printing Office, June 

1994., p. 198] **QC REVIEWED**

8.2. Exposure controls 

Hand protection : In case of repeated or prolonged contact wear gloves. 

Eye protection : Safety glasses. 

Skin and body protection : Wear suitable protective clothing. 

Respiratory protection : Wear respiratory protection approved by NIOSH. 

Industrial hygiene : Either local exhaust or general room ventilation is usually required. Emergency eye wash 

fountains and safety showers should be available in the immediate vicinity of any potential 

exposure. 

SECTION 9: Physical and chemical properties 

9.1. Information on basic physical and chemical properties 

Physical state : Liquid 

Appearance : Clear. 

Molecular mass : 76,08 g/mol 

Color : colorless. 

RI
Methylal Pure Grade 

Safety Data Sheet 

according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

02/07/2014 EN (English US) 4/9 

Odor : characteristic. 

Odor threshold : No data available 

pH : Not applicable 

Relative evaporation rate (butyl acetate=1) : 0,11 (DIN 53170) 

Melting point : - 104,8 °C 

Freezing point : No data available 

Boiling point : 42,3 °C 

Flash point :  -30 °C (ASTM D 93) 

 

Self ignition temperature : 260 °C 

Decomposition temperature : No data available 

Flammability (solid, gas) : No data available 

Vapor pressure : 40 kPa 

Relative vapor density at 20 °C : 2,6 

Relative density : 0,861 20°C 

Density : 0,861 g/cm3 20°C 

Solubility : Water: 330 g/l 20°C 

Log Pow : 0 20°c 

Log Kow : No data available 

Viscosity, kinematic : 37,1 mm2/s 

Viscosity, dynamic : No data available 

Explosive properties : Not classified. 

Oxidizing properties : Not classified. 

Explosive limits : 2,2 / 19,9 vol % 

71 / 630 g/m3 

 

9.2. Other information 

No additional information available 

SECTION 10: Stability and reactivity 

10.1. Reactivity 

Strong acids and oxidants. 

10.2. Chemical stability 

Stable under normal conditions. 

10.3. Possibility of hazardous reactions 

May form flammable vapor-air mixture. 

10.4. Conditions to avoid 

No flames, no sparks. Eliminate all sources of ignition. Overheating. 

10.5. Incompatible materials 

Strong acids and oxidants. 

10.6. Hazardous decomposition products 

Stable under normal conditions. 

SECTION 11: Toxicological information 

11.1. Information on toxicological effects 

Acute toxicity : Not classified 

Methylal Pure Grade ( \f )109-87-5 

LD50 oral rat 6423 mg/kg 

LD50 dermal rabbit  5000 mg/kg 

ATE (oral) 6423,000 mg/kg 

Methanol (67-56-1) 

LD50 oral rat 1187 / 2769 mg/kg 

LD50 dermal rabbit 17100 mg/kg 

RI
Methylal Pure Grade 

Safety Data Sheet 

according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

02/07/2014 EN (English US) 5/9 

Methanol (67-56-1) 

LC50 inhalation rat (mg/l) 128,2 mg/l/4h 

ATE (oral) 100,000 mg/kg body weight 

ATE (dermal) 300,000 mg/kg body weight 

ATE (vapors) 128,200 mg/l/4h 

ATE (dust, mist) 0,500 mg/l/4h 

Additional information Toxic by inhalation, in contact with skin and if swallowed 

Methylal (109-87-5) 

LD50 oral rat 6423 mg/kg 

LD50 dermal rabbit 5000 mg/kg 

ATE (oral) 6423,000 mg/kg 

ATE (dermal) 5000,000 mg/kg 

Formaldehyde (50-00-0) 

LD50 oral rat 800 mg/kg Solution 2% - 4% 

LD50 dermal rabbit 270 mg/kg 

LC50 inhalation rat (mg/l) 588 mg/m3 4 h 

ATE (oral) 100,000 mg/kg 

ATE (dermal) 270,000 mg/kg 

ATE (dust, mist) 0,500 mg/l/4h 

Skin corrosion/irritation : Not classified 

pH: Not applicable 

Serious eye damage/irritation : Not classified 

pH: Not applicable 

Respiratory or skin sensitization : Not classified 

Germ cell mutagenicity : Not classified 

Carcinogenicity : Not classified 

Reproductive toxicity : Not classified 

Specific target organ toxicity (single exposure) : Not classified 

 

Methanol (67-56-1) 

NOAEL (oral,rat) 466 / 529 mg/kg body weight 

Specific target organ toxicity (repeated 

exposure) 

: Not classified 

Methylal Pure Grade (109-87-5) 

LOAEL (inhalation,rat,vapour,90 days) 1000 mg/l/6h/day 

NOAEL (inhalation,rat,vapour,90 days) 2000 mg/l/6h/day 

Methylal (109-87-5) 

LOAEL (inhalation,rat,vapour,90 days) 1000 mg/l/6h/day 

NOAEL (inhalation,rat,vapour,90 days) 2000 mg/l/6h/day 

Aspiration hazard : Not classified 

SECTION 12: Ecological information 

12.1. Toxicity 

Ecology - water : WGK = 1 

Methylal Pure Grade (109-87-5) 

LC50 fish 1 1000 ( 1000) mg/l 

EC50 Daphnia 1 1200 ( 1200) mg/l 48 h 

EC50 other aquatic organisms 1 10 ( 10) g/l Pseudomonas putida 

LC50 fish 2 6,99 g/l Pimephales promelas 

TLM fish 1 1000 g/l LC50 96h 

Methanol (67-56-1) 

LC50 fish 1 15400 mg/l LC50 96h fish 

RI
Methylal Pure Grade 

Safety Data Sheet 

according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

02/07/2014 EN (English US) 6/9 

Methanol (67-56-1) 

EC50 other aquatic organisms 1 22000 mg/l EC 50 (Algae) / 96 h : 

EC50 Daphnia 2 10000 ( 10000) mg/l EC50 48h 

NOEC chronic fish 7900 mg/l 

Methylal (109-87-5) 

LC50 fish 1 1000 ( 1000) mg/l LC50 96h 

EC50 Daphnia 1 1200 ( 1200) mg/l 48 h 

EC50 other aquatic organisms 1 10 ( 10) g/l Pseudomonas putida 

LC50 fish 2 6,99 g/l Pimephales promelas 

Formaldehyde (50-00-0) 

LC50 fish 1 24,8 / 100 mg/l 

EC50 Daphnia 1 42 mg/l EC50 48h 

12.2. Persistence and degradability 

Methylal Pure Grade (109-87-5) 

Persistence and degradability No additional information available. 

Methanol (67-56-1) 

Persistence and degradability Readily biodegradable. 

Biodegradation 83 / 91 % 

12.3. Bioaccumulative potential 

Methylal Pure Grade (109-87-5) 

Log Pow 0 20°c 

Log Kow No data available 

Methanol (67-56-1) 

Log Pow - 0,77 

Bioaccumulative potential Weak. 

Methylal (109-87-5) 

Log Pow 0 20°C 

12.4. Mobility in soil 

Methylal Pure Grade (109-87-5) 

Mobility in soil No additional information available 

Methanol (67-56-1) 

Log Koc 0,13 / 1 

12.5. Other adverse effects 

No additional information available 

SECTION 13: Disposal considerations 

13.1. Waste treatment methods 

Regional legislation (waste) : Dispose of this material and its container to hazardous or special waste collection point. 

Waste treatment methods : Dispose in a safe manner in accordance with local/national regulations. 

SECTION 14: Transport information 

In accordance with DOT 

Transport document description : UN1234, 3, II 

UN-No.(DOT) : 1234 

DOT NA no. : UN1234 

DOT Proper Shipping Name : Methylal 

Department of Transportation (DOT) Hazard 

Classes 

: 3 - Class 3 - Flammable and combustible liquid 49 CFR 173.120 

RI
Methylal Pure Grade 

Safety Data Sheet 

according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

02/07/2014 EN (English US) 7/9 

Hazard labels (DOT) : 3 - Flammable liquid 

Packing group (DOT) : II - Medium Danger 

DOT Special Provisions (49 CFR 172.102) : IB2 - Authorized IBCs: Metal (31A, 31B and 31N); Rigid plastics (31H1 and 31H2); Composite 

(31HZ1). Additional Requirement: Only liquids with a vapor pressure less than or equal to 110 

kPa at 50 C (1.1 bar at 122 F), or 130 kPa at 55 C (1.3 bar at 131 F) are authorized. 

IP8 - Ammonia solutions may be transported in rigid or composite plastic IBCs (31H1, 31H2 and 

31HZ1) that have successfully passed, without leakage or permanent deformation, the 

hydrostatic test specified in 178.814 of this subchapter at a test pressure that is not less than 1.5 

times the vapor pressure of the contents at 55 C (131 F). 

T7 - 4 178.274(d)(2) Normal............. 178.275(d)(3) 

TP2 - a. The maximum degree of filling must not exceed the degree of filling determined by the 

following: (image) Where: tr is the maximum mean bulk temperature during transport, tf is the 

temperature in degrees celsius of the liquid during filling, and a is the mean coefficient of cubical 

expansion of the liquid between the mean temperature of the liquid during filling (tf) and the 

maximum mean bulk temperature during transportation (tr) both in degrees celsius. b. For 

liquids transported under ambient conditions may be calculated using the formula: (image) 

Where: d15 and d50 are the densities (in units of mass per unit volume) of the liquid at 15 C (59 

F) and 50 C (122 F), respectively. 

DOT Packaging Exceptions (49 CFR 173.xxx) : None 

DOT Packaging Non Bulk (49 CFR 173.xxx) : 202 

DOT Packaging Bulk (49 CFR 173.xxx) : 242 

DOT Quantity Limitations Passenger aircraft/rail 

(49 CFR 173.27) 

: 5 L 

DOT Quantity Limitations Cargo aircraft only (49 

CFR 175.75) 

: 60 L 

DOT Vessel Stowage Location : E - The material may be stowed ‘‘on deck’’ or ‘‘under deck’’ on a cargo vessel and on a 

passenger vessel carrying a number of passengers limited to not more than the larger of 25 

passengers, or one passenger per each 3 m of overall vessel length, but is prohibited from 

carriage on passenger vessels in which the limiting number of passengers is exceeded. 

Additional information 

Other information : No supplementary information available. 

ADR 

Transport document description : UN 1234 (METHYLAL), 3, II, (D/E) 

Packing group (ADR) : II 

Class (ADR) : 3 - Flammable liquid 

Hazard identification number (Kemler No.) : 33 

Classification code (ADR) : F1 

Danger labels (ADR) : 3 - Flammable liquids 

Orange plates : 

Tunnel restriction code : D/E 

LQ : 1L 

Excepted quantities (ADR) : E2 

Transport by sea 

UN-No. (IMDG) : 1234 

Class (IMDG) : 3 - Flammable liquids 

RI
Methylal Pure Grade 

Safety Data Sheet 

according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

02/07/2014 EN (English US) 8/9 

Packing group (IMDG) : II - substances presenting medium danger 

EmS-No. (1) : F-E 

EmS-No. (2) : S-D 

Air transport 

UN-No.(IATA) : 1234 

Class (IATA) : 3 - Flammable Liquids 

Instruction "passenger" (ICAO) : 353 

SECTION 15: Regulatory information 

15.1. US Federal regulations 

No additional information available 

15.2. International regulations 

CANADA 

No additional information available 

EU-Regulations 

No additional information available 

Classification according to Regulation (EC) No. 1272/2008 [CLP] 

Flam. Liq. 2 H225 

 

Full text of H-phrases: see section 16 

Classification according to Directive 67/548/EEC or 1999/45/EC 

F; R11 

Full text of R-phrases: see section 16 

15.2.2. National regulations 

No additional information available 

15.3. US State regulations 

No additional information available 

SECTION 16: Other information 

Full text of H-phrases: see section 16: 

------ Flam. Liq. 2 Flammable liquids Category 2 

------ STOT SE 2 Specific target organ toxicity (single exposure) Category 2 

------ H225 Highly flammable liquid and vapor 

------ H371 May cause damage to organs 

NFPA health hazard : 0 - Exposure under fire conditions would offer no hazard 

beyond that of ordinary combustible materials. 

NFPA fire hazard : 3 - Liquids and solids that can be ignited under almost all 

ambient conditions. 

NFPA reactivity : 0 - Normally stable, even under fire exposure conditions, 

and are not reactive with water. 

RI
Methylal Pure Grade 

Safety Data Sheet 

according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations

02/07/2014 EN (English US) 9/9 

HMIS III Rating 

Health : 0 Minimal Hazard - No significant risk to health 

Flammability : 3 Serious Hazard 

Physical : 0 Minimal Hazard 

SDS US (GHS HazCom 2012) 

This information is based on our current knowledge and is intended to describe the product for the purposes of health, safety and environmental requirements only. It should not therefore be construed as 

guaranteeing any specific property of the product 

RI