Dimethoxymethane
Product identifier
- Product name: Dimethoxymethane
- CBnumber: CB9223477
- CAS: 109-87-5
- EINECS Number: 203-714-2
- Synonyms: Dimethoxymethane,methylal
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses: For R&D use only. Not for medicinal, household or other use.
- Uses advised against: none
Company Identification
- Company: Chemicalbook
- Address: Building 1, Huihuang International, Shangdi 10th Street, Haidian District, Beijing
- Telephone: 400-158-6606
GHS Label elements, including precautionary statements
-
Symbol(GHS)
- Signal wordDanger
Substance
- Product name: Dimethoxymethane
- Synonyms: Dimethoxymethane,methylal
- CAS: 109-87-5
- EC number: 203-714-2
- MF: C3H8O2
- MW: 76.09
Description of first aid measures
General adviceMost important symptoms and effects, both acute and delayed
Indication of any immediate medical attention and special treatment needed
Extinguishing media
Suitable extinguishing mediaSpecial hazards arising from the substance or mixture
Carbon oxides
Advice for firefighters
Wear self-contained breathing apparatus for firefighting if necessary.
Further information
Use water spray to cool unopened containers.
NFPA 704
| HEALTH | 1 | Exposure would cause irritation with only minor residual injury (e.g. acetone, sodium bromate, potassium chloride) | |
| FIRE | 3 | Liquids and solids (including finely divided suspended solids) that can be ignited under almost all ambient temperature conditions . Liquids having a flash point below 22.8 °C (73 °F) and having a boiling point at or above 37.8 °C (100 °F) or having a flash point between 22.8 and 37.8 °C (73 and 100 °F). (e.g. gasoline, acetone) | |
| REACT | 1 | Normally stable, but can become unstable at elevated temperatures and pressures (e.g. propene) | |
| SPEC. HAZ. |
Personal precautions, protective equipment and emergency procedures
Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Remove all sources of ignition. Evacuate personnel to safe areas. Beware of vapors accumulating to form explosive concentrations. Vapors can accumulate in low areas.
For personal protection see section 8.
Environmental precautions
Prevent further leakage or spillage if safe to do so. Do not let product enter drains.
Methods and materials for containment and cleaning up
Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet- brushing and place in container for disposal according to local regulations (see section 13).
Reference to other sections
For disposal see section 13.
Precautions for safe handling
Avoid inhalation of vapor or mist.
Keep away from sources of ignition - No smoking.Take measures to prevent the build up of electrostatic charge.
For precautions see section 2.2.
Conditions for safe storage, including any incompatibilities
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage.
Moisture sensitive. Over time, pressure may increase causing containers to burst Handle and open container with care.
Specific end use(s)
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated
control parameter
Hazard composition and occupational exposure limitsExposure controls
Appropriate engineering controlsHandle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.
Face shield and safety glasses Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
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 Regulation (EU) 2016/425 and the standard EN 374 derived from it.
Splash contact Material: butyl-rubber
Minimum layer thickness: 0,3 mm Break through time: 16 min
Material tested:Butoject? (KCL 897 / Aldrich Z677647, Size M)
data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail sales@kcl.de, test method: EN374
If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the EC approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario.
Impervious clothing, Flame retardant antistatic protective clothing., The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
Where risk assessment shows air-purifying respirators are appropriate use a full- face respirator with multi-purpose combination (US) or type AXBEK (EN 14387) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
Prevent further leakage or spillage if safe to do so. Do not let product enter drains.
Information on basic physicochemical properties
- Appearancecolorless clear, liquid
- Odourpungent
- Odour ThresholdNo data available
- pHpH (12.5vol % , 25℃) : 4.5～6.6
- Melting point/freezing pointMelting point/range: -105 °C
- Initial boiling point and boiling range41 - 43 °C at 1013 hPa
- Flash point-18 °C - closed cup
- Evaporation rateNo data available
- Flammability (solid, gas)No data available
- Upper/lower flammability or explosive limits Upper explosion limit: 17,6 %(V) Lower explosion limit: 1,6 %(V)
- Vapour pressure 439,8 hPa at 20 °C 1.548,8 hPa at 55 °C
- Vapour density 2,63 - (Air = 1.0)
- Relative density0,86 g/mL at 20 °C
- Water solubility330 g/l at 20 °C - soluble
- Partition coefficient: n-octanol/waterNo data available
- Autoignition temperature 260 °C at 1013 hPa
- Decomposition temperatureNo data available
- ViscosityNo data available
- Explosive propertiesNo data available
- Oxidizing propertiesNo data available
- Henry's Law Constant(x 10-4 atm?m3/mol): 1.73 at 25 °C (Hine and Mookerjee, 1975)
Other safety information
Surface tension 21,2 mN/m at 20 °C
Relative vapor density
2,63 - (Air = 1.0)
Reactivity
Chemical stability
Stable under recommended storage conditions.
Possibility of hazardous reactions
No data available
Conditions to avoid
Heat, flames and sparks.
Incompatible materials
Oxidizing agents, acids
Hazardous decomposition products
Hazardous decomposition products formed under fire conditions. - Carbon oxides Other decomposition products - No data available
In the event of fire: see section 5
Information on toxicological effects
Acute toxicityLC50 Inhalation - Mouse - male and female - 7 h - 57.000 mg/m3 (OECD Test Guideline 403)
LD50 Dermal - Rabbit - male and female - > 5.000 mg/kg (OECD Test Guideline 402)
Result: No skin irritation - 4 h (OECD Test Guideline 404)
Result: Mild eye irritation (OECD Test Guideline 405)
Result: Did not cause sensitization on laboratory animals. (OECD Test Guideline 406)
S. typhimurium Result: negative
OECD Test Guideline 474 Mouse - male and female Result: negative
RTECS: PA8750000
prolonged or repeated exposure can cause:, narcosis, Dermatitis, Blurred vision, Effects due to ingestion may include:
Toxicity
Immobilization EC50 - Daphnia magna (Water flea) - > 1.200 mg/l - 48 h
(OECD Test Guideline 202)
Persistence and degradability
Biodegradability aerobic - Exposure time 20 - 25 d
Result: - According to the results of tests of biodegradability this product is not readily biodegradable.
Bioaccumulative potential
No data available
Mobility in soil
No data available
Results of PBT and vPvB assessment
This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
Other adverse effects
No data available
Waste treatment methods
Product
Burn in a chemical incinerator equipped with an afterburner and scrubber but exert extra care in igniting as this material is highly flammable. Offer surplus and non-recyclable solutions to a licensed disposal company.
Waste DisposalConcentrated waste containing no peroxides: discharge liquid at a controlled rate near a pilot flame. Concentrated waste containing peroxides: perforation of containers of the waste from a safe distance followed by open burning.
Contaminated packaging
Dispose of as unused product.
UN number
UN proper shipping name
Transport hazard class(es)
ADR/RID: 3 IMDG: 3 IATA: 3
Packaging group
ADR/RID: II IMDG: II IATA: II
Environmental hazards
ADR/RID: no IMDG Marine pollutant: no IATA: no
Special precautions for user
No data available
Safety, health and environmental regulations/legislation specific for the substance or mixture
Regulations on the Safety Management of Hazardous ChemicalsAbbreviations 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
【1】CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
【2】ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
【3】ECHA - European Chemicals Agency, website: https://echa.europa.eu/
【4】eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
【5】ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
【6】Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
【7】HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
【8】IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
【9】IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
【10】Sigma-Aldrich, website: https://www.sigmaaldrich.com/
Other Information
The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.