Dimethyl ether Identifiers Properties Structure Hazards related Compounds Supplementary data page
IUPAC name methoxymethane
various other names DME, lumber etherdimethyl oxideDemeon, Dymel A
CAS number 115-10-6
RTECS number PM3780000
SMILES COC
molecular formula C2H6OCH3OCH3
Molar mass 46.07 g/mol
Appearance colourless gas withtypical smell
Density 1.59, gas (vs air)668 kg/m3, liquid
melt point

-138.5°C (134.6 K)/(-217.3°F) 242.37°R

boiling point

-23°C (254 K)/(-12.82°F) 446.85°R

Solubility in water 328 g/100 mL (20°C)
Dipole moment 1.30 D (gas)
MSDS exterior MSDS
MSDS external MSDS
key hazards highly flammable
R-phrases R12
S-phrases (S2), S9, S16, S33
speed point -41°C/(-41.8°F) 417.87°R
related ethers diethyl ethercrown etherpolyethylene glycol
associated compounds methanol
framework andproperties n, εr, etc.
Thermodynamicdata step behaviourSolid, liquid, gas
Spectral data UV, IR, NMR, MS
except where provided otherwise, data are provided for materials in their standard state(at 25°C, 100kPa)Infobox disclaimer and also references

Dimethyl ether, likewise known together methoxymethane, oxybismethane, methyl ether, wood ether, and also DME, is a colorless gas ether with an ethereal odor. Dimethyl ether gas is water soluble. It has the formula CH3OCH3 or as its empirical formula C2H6O (which that shares through ethanol). Dimethyl ether is offered as one aerosol spray propellant, and also is used in conjunction v propane to give a thermic development that lowers temperature come -60°C. This building is usefull in cryogenic freezing of common warts uncovered on the human being body.


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Dimethyl ether is additionally a clean-burning different to liquified petroleum gas, liquified organic gas, diesel and gasoline. It can be make from natural gas, coal, or biomass.