All Photos(1)
Synonym(s):
DME, Methyl ether
Linear Formula:
(CH3)2O
CAS Number:
Molecular Weight:
46.07
Beilstein:
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.)
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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Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Flam. Gas 1A - Press. Gas Liquefied gas
WGK
WGK 1
Flash Point(F)
-41.8 °F
Flash Point(C)
-41 °C
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Regulatory Information
监管及禁止进口产品
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
Muller M, et al.
Ullmann's Encyclopedia of Industrial Chemistry (2000)
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)
Nature and Location of Carbonaceous Species in a Composite HZSM-5 Zeolite Catalyst during the Conversion of Dimethyl Ether into Light Olefins.
Iba?ez M, et al.
Catalysts, 7(9), 254-254 (2017)
The carbonylation of dimethyl ether catalyzed by supported heteropoly acids: The role of Br?nsted acid properties.
Shen H, et al.
Catalysis Today (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)
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