Title: Titanium Tetrachloride

CAS Registry Number: 7550-45-0

Molecular Formula: Cl4Ti

Molecular Weight: 189.68

Percent Composition: Cl 74.76%, Ti 25.24%

Line Formula: TiCl4

Literature References: Purification: Baxter et al., J. Am. Chem. Soc. 45, 1228 (1923); 48, 3117 (1926). Survey of preparative methods: Ehrlich in Handbook of Preparative Inorganic Chemistry Vol. 2, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1965) pp 195-199. Review of toxicology and human exposure: Toxicological Profile for Titanium Tetrachloride (PB98-101082, 1997) 145 pp.

Properties: Colorless liquid; penetrating acid odor. Absorbs moisture from the air and evolves dense white fumes. Reacts with water to produce titanium dioxide and hydrochloric acid. d 1.726. mp -24.1°. bp 136.4°. Vapor pressure (20°): 10.0 mm; (22°) 9.6 mm. Sol in cold water, alcohol; dec by hot water. Corrosive. Keep tightly closed.

Melting point: mp -24.1°

Boiling point: bp 136.4°

Density: d 1.726

CAUTION: Potential symptoms of overexposure by inhalation are coughing, tightness in chest, chemical bronchitis or pneumonia, congestion of mucous membranes of upper resp tract. Direct contact may cause irritation or burns of eyes, skin, mucous membranes and lungs (PB98-101082).

Use: Manuf titanium compounds, iridescent glass and artificial pearls. Formerly used with potassium bitartrate as a mordant in textile industry, and with dyewoods in dyeing leather; also as smoke-producing screen with ammonia.