295299
Dimethyl ether
≥99%
Synonym(s):
DME, Methyl ether
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About This Item
Linear Formula:
(CH3)2O
CAS Number:
Molecular Weight:
46.07
Beilstein/REAXYS Number:
1730743
EC Number:
MDL number:
UNSPSC Code:
12142100
PubChem Substance ID:
NACRES:
NA.22
Recommended Products
vapor density
1.62 (vs air)
Quality Level
vapor pressure
>760 mmHg ( 25 °C)
assay
≥99%
autoignition temp.
662 °F
expl. lim.
27 %
bp
−24.8 °C (lit.)
mp
−141 °C (lit.)
functional group
ether
SMILES string
COC
InChI
1S/C2H6O/c1-3-2/h1-2H3
InChI key
LCGLNKUTAGEVQW-UHFFFAOYSA-N
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General description
Dimethyl ether (DME) is the simplest aliphatic ether used as a reactant as well as a solvent in organic synthesis. It is used as a precursor for the preparation of important useful organic compounds. DME is also used as an aerosol propellant.
Application
DME can be used as precursor for the production dimethyl sulfate by treatment with sulfur trioxide. Dimethyl sulfate is employed as a versatile methylating agent in chemical synthesis. It is also used as a starting material for preparation of dimethyl sulfide, acetic acid, unsaturated and saturated hydrocarbons, and formadehyde.
Dimethyl ether (DME) can be used as a precursor to synthesize methyl acetate, oligomeric oxymethylene ethers (OMEs), polyoxymethylene dimethyl ethers (DMMx) and light olefins.
Packaging
Supplied in a Sure/Pac™ cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.
Compatible with the following:
Compatible with the following:
Legal Information
Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Pac is a trademark of Sigma-Aldrich Co. LLC
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Danger
hcodes
Hazard Classifications
Flam. Gas 1A - Press. Gas Liquefied gas
Storage Class
2A - Gases
wgk_germany
WGK 1
flash_point_f
-41.8 °F - closed cup
flash_point_c
-41 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)
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