9266. Thallium Oxide

Nomenclature

CAS number: 1314-12-1
Thallous oxide.
OTl2; mol wt 424.77.
O 3.77%, Tl 96.23%.
Tl2O.

Properties

Black powder. Poisonous. mp about 300°. Sol in water, forming the hydroxide; also sol in alcohol. On exposure to air it gradually oxidizes to thallic oxide and becomes insol.

Use

In manuf of glass of a high coefficient of refraction for optical purposes (thallium flint glass) and for artificial gems.