1817. Carbon Tetrafluoride

Nomenclature

CAS number: 75-73-0
Tetrafluoromethane; Freon 14 (DuPont).
CF4; mol wt 88.00.
C 13.65%, F 86.36%.

Description and references

Prepd from carbon or carbon monoxide and fluorine: Yost, Inorg. Synth. 1, 34 (1939); Simons, Block, J. Am. Chem. Soc. 61, 2962 (1939); Kwasnik in Handbook of Preparative Inorganic Chemistry vol 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) p 203. May also be prepd from SiC + F2: Priest, Inorg. Synth. 3, 178 (1950).

Properties

Colorless, odorless gas. Thermally stable. Chemically very inert. d (solid, -195°) 1.98. d (liq, -183°) 1.89. mp -183.6°. bp -127.8°. May be stored in steel cylinders.

Caution

Narcotic in high concns.

Use

Low temp refrigerant; gaseous insulator.