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38912

Sigma-Aldrich

Dimethyl ether

puriss., ≥99.9% (GC)

Synonym(s):

Methyl ether

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About This Item

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

vapor density

1.62 (vs air)

vapor pressure

>760 mmHg ( 25 °C)

grade

puriss.

Assay

≥99.9% (GC)

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 also used as a precursor for the preparation of important useful organic compounds such as dimethyl carbonate, methyl acetate, propylene and chloromethyl ether.

Application

DME can be used as a precursor for the preparation of versatile methylating agents such as dimethyl sulfate and trimethyloxonium tetrafluoroborate.

Packaging

Cylinder with net 1.1 kg
DIN 477 nr.1

Other Notes

Sales restrictions may apply

Recommended products

Z742161 DIN 1 Regulator OR 99112 outlet Valve

Pictograms

FlameGas cylinder

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Flam. Gas 1A - Press. Gas Liquefied gas

Storage Class Code

2A - Gases

WGK

WGK 1

Flash Point(F)

-41.8 °F - closed cup

Flash Point(C)

-41 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Dimethyl ether
Muller M, et al.
Ullmann's Encyclopedia of Industrial Chemistry, 156(2), 497-511 (2000)
Trimethyloxonium tetrafluoroborate
Curphey, TJ
Organic Syntheses, 50(4), 1019-1023 (1988)
Direct dimethyl ether synthesis
Ogawa T, et al.
Journal of natural gas chemistry, 12(4), 219-227 (2003)
Dimethyl ether (DME) as an alternative fuel
Semelsberger TA, et al.
Journal of Power Sources, 156(2), 497-511 (2006)
Salma Parveen et al.
The journal of physical chemistry. A, 113(21), 6182-6191 (2009-05-09)
Theoretical calculations have been carried out using ab initio MP2 and B3LYP density functional methods to investigate the interaction between fluorinated dimethyl ethers (nF = 1-5) and water. Depending on the number of F atoms implanted on the dimethyl ethers

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