Amorphous uranium(VI) oxide
Amorphous uranium(VI) oxide (am-U2O7) is an orange diuranyl compound, most commonly obtained from the thermal decomposition of uranyl peroxide tetrahydrate at temperatures between 150 and 500 °C (300 and 930 °F). It exists at room temperature as a powder. Am-U2O7 does not comprise a regular, long-range atomic structure, as demonstrated by its characteristic diffuse scattering pattern obtained by X-ray diffraction. As a result, the molecular structure of this material is little understood, although experimental and computational attempts to elucidate a local atomic environment have yielded some success.
| Names | |
|---|---|
| IUPAC name
Diuranyl heptoxide | |
| Other names
Amorphous UO3 | |
| Properties | |
| Am-U2O7 | |
| Molar mass | 588 g/mol |
| Appearance | Orange-brown powder |
| Density | 6.8 g/cm3 |
| Partially soluble | |
| Related compounds | |
| Uranyl peroxide Triuranium octoxide | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
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