Methyl Ether
Title: Methyl Ether
CAS Registry Number: 115-10-6
CAS Name: Oxybismethane
Additional Names: dimethyl ether
Molecular Formula: C2H6O
Molecular Weight: 46.07
Percent Composition: C 52.14%, H 13.13%, O 34.73%
Line Formula: CH3OCH3
Literature References: Prepn: J. Dumas, E. Peligot, Ann. 15, 1 (1835); and thermal properties: R. M. Kennedy et al., J. Am. Chem. Soc. 63, 2267 (1941). Atmospheric chemistry: S. M. Japar et al., Int. J. Chem. Kinet. 22, 1257 (1990). Review: H. Höver in Ullmann's Encyclopedia of Industrial Chemistry vol. A8 (VCH, Weinheim, 1987) pp 541-544; of use in diesel engines: A. M. Rouhi, Chem. Eng. News 73, 37-39 (May 29, 1995).
Properties: Colorless, flammable gas with a slight ethereal odor. mp -141.50°. bp -24.82°. d25 (1 atm) 1.91855 g/l. Heat capacity at 210.51 K: 23.88 cal/deg/mole. Heat of vaporization at bp: 5141.0 cal/mole. Heat of fusion: 1179.8 cal/mole. Flash pt -41°C. One vol water takes up 37 vols gas.
Melting point: mp -141.50°
Boiling point: bp -24.82°
Flash point: Flash pt -41°C
Density: d25 (1 atm) 1.91855 g/l
Use: Aerosol propellant; alternative diesel fuel; chemical intermediate.

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