Dimethyl ether

Dimethyl ether
Skeletal formula of dimethyl ether with all implicit hydrogens shown	Ball and stick model of dimethyl ether
Names
	Preferred IUPAC name Methoxymethane
	Other names Dimethyl ether; R-E170; Demeon; Dimethyl oxide; Dymel A; Methyl ether; Methyl oxide; Mether; Wood ether
Identifiers
CAS Number	115-10-6 ;
3D model (JSmol)	Interactive image;
Abbreviations	DME
Beilstein Reference	1730743
ChEBI	CHEBI:28887 ;
ChEMBL	ChEMBL119178 ;
ChemSpider	7956 ;
ECHA InfoCard	100.003.696
EC Number	204-065-8;
KEGG	C11144 ;
MeSH	Dimethyl+ether
PubChem CID	8254;
RTECS number	PM4780000;
UNII	AM13FS69BX ;
UN number	1033
CompTox Dashboard (EPA)	DTXSID8026937 ;
	InChI InChI=1S/C2H6O/c1-3-2/h1-2H3 Key: LCGLNKUTAGEVQW-UHFFFAOYSA-N ; InChI=1/C2H6O/c1-3-2/h1-2H3 Key: LCGLNKUTAGEVQW-UHFFFAOYAU;
	SMILES COC;
Properties
Chemical formula	C2H6O
Molar mass	46.069 g·mol−1
Appearance	Colorless gas
Odor	Ethereal
Density	2.1146 kg m−3 (gas, 0 °C, 1013 mbar); 0.735 g/mL (liquid, −25 °C)
Melting point	−141 °C; −222 °F; 132 K
Boiling point	−24 °C; −11 °F; 249 K
Solubility in water	71 g/L (at 20 °C (68 °F))
log P	0.022
Vapor pressure	592.8 kPa
Magnetic susceptibility (χ)	−26.3×10−6 cm3 mol−1
Dipole moment	1.30 D
Thermochemistry
Heat capacity (C)	65.57 J K−1 mol−1
Std enthalpy of; formation (ΔfH⦵298)	−184.1 kJ mol−1
Std enthalpy of; combustion (ΔcH⦵298)	−1460.4 kJ mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H220
Precautionary statements	P210, P377, P381, P403
NFPA 704 (fire diamond)	2 4 1
Flash point	−41 °C (−42 °F; 232 K)
Autoignition; temperature	350 °C (662 °F; 623 K)
Explosive limits	27 %
Safety data sheet (SDS)	≥99% Sigma-Aldrich
Related compounds
Related ethers	Diethyl ether; Polyethylene glycol
Related compounds	Ethanol; Methanol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Dimethyl ether (DME; also known as methoxymethane) is the organic compound with the formula CH₃OCH₃, (sometimes ambiguously simplified to C₂H₆O as it is an isomer of ethanol). The simplest ether, it is a colorless gas that is a useful precursor to other organic compounds and an aerosol propellant that is currently being demonstrated for use in a variety of fuel applications.

Dimethyl ether was first synthesised by Jean-Baptiste Dumas and Eugene Péligot in 1835 by distillation of methanol and sulfuric acid.^[5]

^ ^a ^b "CHAPTER P-6. Applications to Specific Classes of Compounds". Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 703. doi:10.1039/9781849733069-00648. ISBN 978-0-85404-182-4.
^ ^a ^b ^c Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health
^ "Dimethylether". 19 October 2018. Archived from the original on 6 November 2021. Retrieved 10 November 2020.
^ GHS: Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health
^ Ann. chim. phys., 1835, [2] 58, p. 19

[iupac2013-1] "CHAPTER P-6. Applications to Specific Classes of Compounds". Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 703. doi:10.1039/9781849733069-00648. ISBN 978-0-85404-182-4.

[GESTIS-2] Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health

[3] "Dimethylether". 19 October 2018. Archived from the original on 6 November 2021. Retrieved 10 November 2020.

[4] GHS: Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health

[5] Ann. chim. phys., 1835, [2] 58, p. 19

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