Uranium Telluride, U₂Te₃

Uranium Telluride, U₂Te₃, is the only compound of uranium and tellurium the existence of which is definitely established. It is formed when hydrogen containing tellurium vapour is passed over the double sodium uranium chloride at 1000° C., or when the chloride is heated with sodium telluride in hydrogen at the same temperature. The latter method is the more satisfactory. It yields black lustrous crystals.

According to Gutbier, the addition of a uranyl salt to a solution of potassium tellurate yields a yellow curdy precipitate of uranyl tellurate.