Nomenclature
CAS number: 593-53-3
Methyl fluoride.
CH
3F; mol wt 34.03.
C 35.29%, H 8.89%, F 55.83%.
Description and references
Prepn in 82% yield by heating fluorosulfonic
acid methyl ester with KF: Zappel, Jonas, DE 1131197 (1962 to Bayer).
Properties
Gas. Agreeable ether-like odor. Burns with evolution
of HF, the flame being about as colorless as that of alc: Dumas,
Peligot, Ann. 15, 59
(1835). d (liq; 78°) 0.8774. d (gas) 1.1951 (air
= 1); d (gas) 1.0813 (oxygen = 1). Dipole moment 1.81. Molecular volume: 22.03.
Van der Waals constants: 0.00923; 0.002350. Critical temp 44.9°;
crit press. 62.0 atm. Dielectric constant (for wavelengths below
104 cm) = 1.00948. mp 141.8°. bp872 75.7°; bp760 78.2°. bp143 103.7°. One hundred vols
of water dissolve 166 vols of the gas at 15°. Freely sol in alcohol,
ether.Caution
Narcotic in high concns.