1110. Benzotrifluoride

Nomenclature

CAS number: 98-08-8
(Trifluoromethyl)benzene; α,α,α-trifluorotoluene; phenylfluoroform.
C7H5F3; mol wt 146.11.
C 57.54%, H 3.45%, F 39.01%.

Description and references

Prepd by the action of hydrogen fluoride on benzotrichloride: Simons, Lewis, J. Am. Chem. Soc. 60, 492 (1938); Simons, Ind. Eng. Chem. 32, 178 (1940); by the action of antimony trifluoride on benzotrichloride: Swarts, Bull. Sci. Acad. R. Belg., [4] 35, 375 (1898); [5] 6, 389 (1920); [5] 13, 175 (1927); Holt et al., US 2058453 (1937 to Kinetic Chemicals).

Chemical structure

Properties

Liquid. mp -29.05°. d20 1.1886. bp 103.46°. nD13.3 1.41486. Flammable. Soluble in many organic solvents.

Use

In dye chemistry; in the manuf of substituted benzotrifluorides contg an ethylenic group, used in high polymer chemistry; in dielectric fluids, such as transformer oils.