Uranium oxide, depleted

Description

Although expensive, the depleted uranium oxide is sometimes used as a pigment in glazes. It produces red and orange colors at about 940 C while slightly higher temperatures give a soft yellow color (Kawai's yellow). It can turn gray or black at temperatures above 1260 C.

Synonyms and Related Terms

Kawai yellow

Risks

Highly toxic by ingestion and inhalation. Human carcinogen.

IBILABS: SDS

Physical and Chemical Properties

• Insoluble in water, alcohols, and alkalies.
• Soluble in acetone, acids.

Composition	U3O8
CAS #	7440-61-1
Density	7.3

Resources and Citations

• Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993

• Robert Fournier, Illustrated Dictionary of Practical Pottery, Chilton Book Company, Radnor, PA, 1992