9481. Titanium Trichloride

Nomenclature

CAS number: 7705-07-9
Titanous chloride.
Cl3Ti; mol wt 154.23.
Cl 68.96%, Ti 31.04%.
TiCl3.

Description and references

Prepn by reduction of the tetrachloride: Ingraham et al., Inorg. Synth. 6, 52 (1960); Sherfey, ibid. 57.

Properties

Dark red-violet, unstable, deliquesc crystals; dec on heating above 500°. The dry powder is pyrophoric in air. Very reactive and readily dissociated by moisture in air. Sol in water, exothermic process; sol in alcohol. Practically insol in ether. Keep tightly closed.

Use

A powerful reducing agent. Reduces nitrate to ammonia; when boiled with aq SO2, sulfur is separated; hence is used as an aq soln for estimation of nitro groups, ferric ions, per-salts, etc. Removes stains, etc. (stripper) in laundering.