F 1,1,1 -Trifluoroethane

Giuliani, G., Kumar, S., Zazzini, P, Polonara, F. (1995b) Vapor pressure and gas phase PVT data and correlation for 1,1,1-trifluoroethane (R143a). J. Chem. Eng. Data 40, 903-908. 

Both the C-F and C Cl bonds are cleaved, the former always being more reactive. In the perhalomethane series, such ionic addition reactions are limited to trichlorofluoromcthane on contact with aluminum trichloride, disproportionation of dichlorodifluoromethane occurs, and chlorolrifluoromethane does not react under these conditions. On the other hand, the reactivity of haloethenes increases with the increasing number of fluorine atoms in the molecule.28 The alkylation has also been performed with 1,1,1-trifluoroethane.30... 

No long-lived carbocation intermediates could be detected (by n.m.r. techniques) when the fluoro-olefins CF2=CFX (X = H, F, Cl, Br, I, or CF,), CHF—CHY (Y = Cl, F, or H), and CF2=CH2 were treated with HSOjF or the superacid systems SbFs-HF-SOjClF or "SbFs-HSOjF-SOjClF at low temperatures (see p. 53). 1,1,1-Trifluoroethane, like its chloro-analogue, interacts with ShF -SOaClF at — 80 °C to give the corre-... 

Swain, Charles F. Process and catalysts for the preparation of 1,1,1-trifluoroethane from hydrogen fluoride and 1,1,1-trichloroethane. WO 9605156Al-19960222 (1996). 

Used oil containing more than 1,000 ppm total halogens is presruned to be hazardous (F-wastes). FOOl/ F002 constituents include tetrachloroethylene, methylene chloride, trichloroethylene, 1,1,1-trichloreoethelene, carbon tetrachloride, chlorinated fluorocarbons, 1,1,2-trichoroethane, chlorobenezene, 1,1,2-trichloro- 1,2,2-trifluoroethane, orthodichlorobenzene, and trichlorofluoromethane. 

---