Title: Thallium Oxide

CAS Registry Number: 1314-12-1

Additional Names: Thallous oxide

Molecular Formula: OTl2

Molecular Weight: 424.77

Percent Composition: O 3.77%, Tl 96.23%

Line Formula: 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.

Melting point: mp about 300°

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