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295299

Sigma-Aldrich

Dimethyl ether

≥99%

Synonym(s):

DME, Methyl ether

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About This Item

Linear Formula:
(CH3)2O
CAS Number:
115-10-6
Molecular Weight:
46.07
Beilstein/REAXYS Number:
1730743
EC Number:
204-065-8
MDL number:
MFCD00008494
UNSPSC Code:
12142100
PubChem Substance ID:
24857771
NACRES:
NA.22

vapor density

1.62 (vs air)

Quality Level

100

vapor pressure

>760 mmHg ( 25 °C)

assay

≥99%

autoignition temp.

662 °F

expl. lim.

27 %

bp

−24.8 °C (lit.)

mp

−141 °C (lit.)

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:

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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Z146811

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pictograms

FlameGas cylinder
GHS02,GHS04

signalword

Danger

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)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Dimethyl ether carbonylation to methyl acetate over highly crystalline zeolite seed-derived ferrierite.
Kim J, et al.
Catalysis Science & Technology, 8(12), 3060-3072 (2018)
Synthesis of Polyoxymethylene Dimethyl Ethers from Dimethyl Ether Direct Oxidation over Carbon?Based Catalysts.
Gao X-Y, et al.
ChemCatChem, 10(1), 273-279 (2018)
Carbonylation of dimethyl ether over Co-HMOR.
Ma M,et al.
Catalysis Science & Technology, 8(8), 2124-2130 (2018)
The carbonylation of dimethyl ether catalyzed by supported heteropoly acids: The role of Br?nsted acid properties.
Shen H, et al.
Catalysis Today (2018)
Heterogeneously catalyzed synthesis of oxymethylene dimethyl ethers (OME) from dimethyl ether and trioxane.
Haltenort P, et al.
Catalysis Communications, 109, 80-84 (2018)
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