Uranium oxide, depleted
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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.
- May explode or self-ignite in air.
- EPA: info
Physical and Chemical Properties
- Insoluble in water, alcohols, and alkalies.
- Soluble in acetone, acids.
| Composition | U3O8 |
|---|---|
| CAS # | 7440-61-1 |
| Density | 7.3 g/ml |
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