1.Identification
1.1 GHS Product identifier
Product name | dimethoxymethane |
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1.2 Other means of identification
Product number | - |
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Other names | dimethoxy methane |
1.3 Recommended use of the chemical and restrictions on use
Identified uses | For industry use only. Food additives -> Flavoring Agents |
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Uses advised against | no data available |
1.4 Supplier's details
1.5 Emergency phone number
Emergency phone number | - |
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Service hours | Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours). |
2.Hazard identification
2.1 Classification of the substance or mixture
Flammable liquids, Category 2
2.2 GHS label elements, including precautionary statements
Pictogram(s) | |
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Signal word | Danger |
Hazard statement(s) | H225 Highly flammable liquid and vapour |
Precautionary statement(s) | |
Prevention | P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 Keep container tightly closed. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof [electrical/ventilating/lighting/...] equipment. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P280 Wear protective gloves/protective clothing/eye protection/face protection. |
Response | P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water [or shower]. P370+P378 In case of fire: Use ... to extinguish. |
Storage | P403+P235 Store in a well-ventilated place. Keep cool. |
Disposal | P501 Dispose of contents/container to ... |
2.3 Other hazards which do not result in classification
none
3.Composition/information on ingredients
3.1 Substances
Chemical name | Common names and synonyms | CAS number | EC number | Concentration |
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dimethoxymethane | dimethoxymethane | 109-87-5 | none | 100% |
4.First-aid measures
4.1 Description of necessary first-aid measures
General advice
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaled
Fresh air, rest. Refer for medical attention.
In case of skin contact
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .
In case of eye contact
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
If swallowed
Rinse mouth. Refer for medical attention .
4.2 Most important symptoms/effects, acute and delayed
VAPOR: Irritating to eyes, nose and throat. Harmful if inhaled. LIQUID: Irritating to skin and eyes. Harmful if swallowed. (USCG, 1999)
4.3 Indication of immediate medical attention and special treatment needed, if necessary
If methylal gets into the eyes, wash eyes immediately with large amounts of water, lifting the lower and upper lids occasionally. If irritation is present after washing, get medical attention. Contact lenses should not be worn when working with this chemical.
5.Fire-fighting measures
5.1 Extinguishing media
Suitable extinguishing media
TO FIGHT FIRE: FOAM, CARBON DIOXIDE, DRY CHEMICAL ...
5.2 Specific hazards arising from the chemical
FLAMMABLE. Irritating gases may be produced when heated. Containers may explode in fire. Flashback along vapor trail may occur. Vapor may explode if ignited in an enclosed area. Irritating formaldehyde gas may be present in smoke. (USCG, 1999)
5.3 Special protective actions for fire-fighters
Wear self-contained breathing apparatus for firefighting if necessary.
6.Accidental release measures
6.1 Personal precautions, protective equipment and emergency procedures
Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.
6.2 Environmental precautions
Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer. Personal protection: self-contained breathing apparatus.
6.3 Methods and materials for containment and cleaning up
1. REMOVE ALL IGNITION SOURCES. 2. VENTILATE AREA OF SPILL OR LEAK. 3. FOR SMALL QUANTITIES, ABSORB ON PAPER TOWELS. EVAPORATE IN SAFE PLACE (SUCH AS FUME HOOD). ALLOW SUFFICIENT TIME TO COMPLETELY CLEAR HOOD DUCTWORK. BURN PAPER IN SUITABLE LOCATION AWAY FROM COMBUSTIBLE MATERIALS. 3. LARGE QUANTITIES CAN BE COLLECTED, DISSOLVED IN ALC OF GREATER MOLECULAR WT THAN BUTYL ALC, & ATOMIZED IN SUITABLE COMBUSTION CHAMBER. METHYLAL SHOULD NOT BE ALLOWED TO ENTER CONFINED SPACE, SUCH AS SEWER, BECAUSE OF THE POSSIBILITY OF AN EXPLOSION.
7.Handling and storage
7.1 Precautions for safe handling
Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.
7.2 Conditions for safe storage, including any incompatibilities
Fireproof. Separated from strong oxidants. Cool. Keep in the dark. Well closed. Store only if stabilized.
8.Exposure controls/personal protection
8.1 Control parameters
Occupational Exposure limit values
10 hr Time-Weighted avg: 1,000 ppm (3,100 mg/cu m).
Biological limit values
no data available
8.2 Appropriate engineering controls
Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.
8.3 Individual protection measures, such as personal protective equipment (PPE)
Eye/face protection
Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection
Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.
Respiratory protection
Wear dust mask when handling large quantities.
Thermal hazards
no data available
9.Physical and chemical properties
Physical state | Colorless transparent liquid |
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Colour | COLORLESS, CLEAR LIQUID |
Odour | CHLOROFORM ODOR |
Melting point/ freezing point | 105°C(lit.) |
Boiling point or initial boiling point and boiling range | 42°C |
Flammability | Class IB Flammable Liquid: Fl.P. below 22.78°C and BP at or above 37.78°C.Highly flammable. |
Lower and upper explosion limit / flammability limit | Lower flammable limit: 2.2% by volume; Upper flammable limit: 13.8% by volume |
Flash point | -32°C(lit.) |
Auto-ignition temperature | 237.22°C (USCG, 1999) |
Decomposition temperature | no data available |
pH | no data available |
Kinematic viscosity | no data available |
Solubility | In water:32.3 g/100 mL (16 oC) |
Partition coefficient n-octanol/water (log value) | log Kow= 0.0 |
Vapour pressure | 364.565mmHg at 25°C |
Density and/or relative density | 0.86 |
Relative vapour density | 2.6 (USCG, 1999) (Relative to Air) |
Particle characteristics | no data available |
10.Stability and reactivity
10.1 Reactivity
no data available
10.2 Chemical stability
STABLE UNDER NEUTRAL OR ALKALINE CONDITIONS /KETALS/
10.3 Possibility of hazardous reactions
DANGEROUS, WHEN EXPOSED TO HEAT, FLAME, OXIDIZERSThe vapour is heavier than air and may travel along the ground; distant ignition possible.METHYLAL, an acetal, is incompatible with strong oxidizing agents and acids (NIOSH, 2016). Breaks down to formaldehyde and methanol in acidic solutions. A very dangerous fire hazard when exposed to heat, flame or oxidizing agents. May ignite or explode if heated with oxygen [Lewis].
10.4 Conditions to avoid
no data available
10.5 Incompatible materials
Strong oxidizers, acids.
10.6 Hazardous decomposition products
DISASTER HAZARD: DANGEROUS UPON EXPOSURE TO HEAT OR FLAME ...
11.Toxicological information
Acute toxicity
- Oral: no data available
- Inhalation: LC50 Mouse inhalation 18,000 ppm/7 hr
- Dermal: no data available
Skin corrosion/irritation
no data available
Serious eye damage/irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
no data available
Reproductive toxicity
no data available
STOT-single exposure
no data available
STOT-repeated exposure
no data available
Aspiration hazard
no data available
12.Ecological information
12.1 Toxicity
- Toxicity to fish: no data available
- Toxicity to daphnia and other aquatic invertebrates: no data available
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
12.2 Persistence and degradability
A reduction in BOD in 8 hr was obtained in one study in which well acclimated sewage seed was incubated with 333 ppm of methylal(1). However this reduction was small compared with the theoretical oxygen demand and toxicity resulted in an initial increase in BOD.
12.3 Bioaccumulative potential
The BCF for methylal, estimated from its octanol/water partition coefficient, 0.00(1), using a recommended regression equation is 0.6(2,SRC). Therefore, methylal should not bioconcentrate in fish and aquatic organisms.
12.4 Mobility in soil
The Koc for methylal estimated from its water solubility, 2.44X10+5 ppm(1), by a recommended regression equation is 5(2). Therefore methylal would be very mobile in soil(3).
12.5 Other adverse effects
no data available
13.Disposal considerations
13.1 Disposal methods
Product
The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.
Contaminated packaging
Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
14.Transport information
14.1 UN Number
ADR/RID: UN1234 | IMDG: UN1234 | IATA: UN1234 |
14.2 UN Proper Shipping Name
ADR/RID: METHYLAL |
IMDG: METHYLAL |
IATA: METHYLAL |
14.3 Transport hazard class(es)
ADR/RID: 3 | IMDG: 3 | IATA: 3 |
14.4 Packing group, if applicable
ADR/RID: II | IMDG: II | IATA: II |
14.5 Environmental hazards
ADR/RID: no | IMDG: no | IATA: no |
14.6 Special precautions for user
no data available
14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code
no data available
15.Regulatory information
15.1 Safety, health and environmental regulations specific for the product in question
Chemical name | Common names and synonyms | CAS number | EC number |
---|---|---|---|
dimethoxymethane | dimethoxymethane | 109-87-5 | none |
European Inventory of Existing Commercial Chemical Substances (EINECS) | Listed. | ||
EC Inventory | Listed. | ||
United States Toxic Substances Control Act (TSCA) Inventory | Listed. | ||
China Catalog of Hazardous chemicals 2015 | Listed. | ||
New Zealand Inventory of Chemicals (NZIoC) | Listed. | ||
Philippines Inventory of Chemicals and Chemical Substances (PICCS) | Listed. | ||
Vietnam National Chemical Inventory | Listed. | ||
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) | Listed. |
16.Other information
Information on revision
Creation Date | Aug 10, 2017 |
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Revision Date | Aug 10, 2017 |
Abbreviations and acronyms
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
References
- IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
- HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
- CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
- Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
- ECHA - European Chemicals Agency, website: https://echa.europa.eu/