Title: Hydrogen Telluride
CAS Registry Number: 7783-09-7
Molecular Formula: H2Te
Molecular Weight: 129.62
Percent Composition: H 1.56%, Te 98.44%
Literature References: Prepd by the action of H2O or HCl on aluminum telluride; by electrolysis of a 50% soln of sulfuric or phosphoric acid with a Te cathode: Dennis, Anderson, J. Am. Chem. Soc. 36, 882 (1914); Fehér in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) pp 438-441.
Properties: Colorless gas. Offensive, garlic-like odor. Highly poisonous! mp -49°. bp -2°. dliq-12 2.68. Wt of one liter of the gas: 6.234 g. Liquid H2Te is dec immediately by light. The dry gas is stable to light, but dec in the presence of dust, traces of moisture, rubber, cork, etc. Sol in water with fairly quick decompn. A satd aq soln is about 0.1N.
Melting point: mp -49°
Boiling point: bp -2°
Density: dliq-12 2.68
CAUTION: Imparts offensive odor to breath. Symptoms similar to hydrogen selenide, q.v.