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Merck
CN

295299

二甲醚

≥99%

别名:

甲醚

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线性分子式:
(CH3)2O
化学文摘社编号:
分子量:
46.07
UNSPSC Code:
12142100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
204-065-8
Beilstein/REAXYS Number:
1730743
MDL number:
Assay:
≥99%
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InChI key

LCGLNKUTAGEVQW-UHFFFAOYSA-N

InChI

1S/C2H6O/c1-3-2/h1-2H3

SMILES string

COC

vapor density

1.62 (vs air)

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

Quality Level

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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

Sure/Pac is a trademark of Sigma-Aldrich Co. LLC
Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

pictograms

FlameGas cylinder

signalword

Danger

hcodes

Hazard Classifications

Flam. Gas 1A - Press. Gas Liquefied gas

存储类别

2A - Gases

wgk

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)

法规信息

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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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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)
Heterogeneously catalyzed synthesis of oxymethylene dimethyl ethers (OME) from dimethyl ether and trioxane.
Haltenort P, et al.
Catalysis Communications, 109, 80-84 (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)
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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