Chemical Properties
fine purple fibres
Uses
2,4,6-trichloroaniline is important as an intermediate in the manufacture of benzene derivatives, including 1,3,5-trichlorobenzene and is useful in the formation of fungicides, mono-azo dyestuffs, and the preparation of hexachlorodiphenyl urea.
Tetrachloronitrobenzene was prepared from 2:4:6-trichloroaniline,which was converted by a Sandmeyer reaction into 1:2:3:5- tetrachlorobenzene.
Preparation
2,4,6-Trichloroaniline can be prepared by reaction of dry aniline with chlorine gas while in a anhydrous solution of carbon tetrachloride. 2,4,6-Trichloroaniline precipitates from solution as a white solid. If water is introduced to the solution the white material will polymerize to form aniline black.
Process for the preparation of 2,4,6-trichloroaniline
General Description
Long needles or fine, light purple fibers.
Air & Water Reactions
2,4,6-Trichloroaniline may be sensitive to exposure to light and air. Insoluble in water.
Reactivity Profile
2,4,6-Trichloroaniline is incompatible with acids, acid chlorides, acid anhydrides, chloroformates, and strong oxidizing agents. .
Fire Hazard
Flash point data for 2,4,6-Trichloroaniline are not available. 2,4,6-Trichloroaniline is probably combustible.
Safety Profile
Moderately toxic by ingestion.Irritant. Questionable carcinogen with experimentalcarcinogenic data. Mutation data reported. When heatedto decomposition it emits very toxic fumes of Clí andNOx.
Purification Methods
Crystallise the aniline from ligroin. The benzoyl derivative has m 174o (from EtOH). [Beilstein 12 H 627, 12 IV 1281.]
