Titanium Tetrabromide, TiBr₄

Titanium Tetrabromide (Titanic Bromide), TiBr₄, is said to be formed when bromine vapour is passed over a red-hot mixture of titanic oxide and carbon, but is prepared by the action of gaseous hydrogen bromide on the heated chloride. It is an amber-coloured hygroscopic, crystalline substance of density 2.6; it melts at 39° C. and boils at 230° C.; with ammonia it forms TiBr₄.8NH₃, and it is hydrolysed by water, forming oxybromides, of which two have been described, TiBr₃OH and 2TiBr(OH)₃.3H₂O, a stable, crystalline powder.