Title: Fluoroform
CAS Registry Number: 75-46-7
CAS Name: Trifluoromethane
Molecular Formula: CHF3
Molecular Weight: 70.01
Percent Composition: C 17.16%, H 1.44%, F 81.41%
Literature References: Prepd from CHCl3 and HF: Meslans, Compt. Rend. 110, 717 (1890); Valentiner, US 643835 (1900); Ruff, Ber. 69, 299 (1936); Whallay, J. Soc. Chem. Ind. London 66, 429 (1947); Kwasnik in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) pp 204-205. Early industrial prepn: Pearlson in Fluorine Chemistry vol. I, J. H. Simons, Ed. (Academic Press, New York, 1950) p 467.
Properties: Colorless, odorless gas. Stable up to 1150°. Chemically very inert. d (solid) 1.935. d (liq; -100°) 1.52. mp -160°. bp -84.4°. Critical temp 33°, critical pressure 47 atm, critical density 0.516. May be stored over water. Practically non-toxic: N. V. Sidgwick, The Chemical Elements and Their Compounds vol. II (Oxford, 1950) p 1130.
Melting point: mp -160°
Boiling point: bp -84.4°
Density: d (solid) 1.935; d (liq; -100°) 1.52; critical density 0.516
CAUTION: May be slightly irritating to respiratory tract, and, in high concns, narcotic.
Use: Refrigerant for low temps. |