Uranium Trioxide
Uranium Trioxide
UO3
| Compound | Uranium Trioxide |
| Synonyms | uranium(VI) oxide |
| Formula | UO3 |
| Molecular Formula | O3U |
| Molecular Weight | 286.027 |
| CAS RN: | 1344-58-7 |
| Properties | -100 mesh; has six forms; α is hex brown, β is orange monocl, γ is bright yellow rhomb, δ is red cub, ε is brick red tricl, η is rhomb; UO3 can be obtained by thermal descomposition of uranyl compounds, e.g carbonates, oxalates nitrates [KIR83] [CER91] |
| Solubility | i H2O; s acids [MER89] |
| Density, g/cm3: | 7.29 [MER89] |
| Melting point, °C | 650, decomposes [KIR91] |
| Boiling point, °C | |
| Reactions: | |