Chemicals

Dimethyl Ether

Molecule 3D Structure Image
Molecule Structure Image

Description

 

Dimethyl ether is an organic compound. This simplest ether is a colourless gas that is a useful precursor to other organic compounds and an aerosol propellant. The largest use of dimethyl ether is currently as substitute for propane in LPG used as fuel in household and industry. It is a low-temperature solvent and extraction agent, applicable to specialised laboratory procedures. Its usefulness is limited by its low boiling point, but the same property facilitates its removal from reaction mixtures. Dimethyl ether is the precursor to the useful alkylating agent, trimethyloxonium tetrafluoroborate. It is a promising fuel in diesel engines, petrol engines, and gas turbines owing to its high cetane number, which is 55, compared to diesel's, which is 40–53.

Chemical Properties

Appearance Colourless gas
Boiling Point −23.6 °C
CAS Number 115-10-6
Density 1.97 g/l
Dipole Moment 1.30 D
EINECS Number 204-065-8
IUPAC Name Methoxymethane
InChI 1S/C2H6O/c1-3-2/h1-2H3
InChIKey LCGLNKUTAGEVQW-UHFFFAOYSA-N
Melting Point −138.5 °C
Molar Mass 46.07 g/mol
Molecular Formula C2H6O
RTECS Number PM3780000
Related Compounds Methanol
Solubility 71 g/l
Synonyms DME;Methyl Ether;Methoxymethane;Wood Ether;Dimethyl Oxide;Demeon;Dymel A
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