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TABLE 1 Physical Properties of Pertinent Uranium Compounds
Table 1 - Physical Properties of Pertinent Uranium Compounds
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Density (g/cm3)
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| Compound |
Melting Point (°C) |
Crystal/ Particle |
Bulkb |
Solubility in Water at Ambient Temperature |
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| UF6 |
64.1 |
4.68
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4.6 |
Decomposes to UO2F2
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| UF4 |
960 ± 5 |
6.7
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2.0 – 4.5 |
Very slightly soluble
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| UO2F2 |
Decomposes to U3O8 at 300 |
6.37
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~2.6 |
Soluble
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| U3O8 |
Decomposes to UO2 at 1,300 |
8.30
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1.5 – 4.0 |
Insoluble
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| UO2 |
2,878 ± 20 |
10.96
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2.0 – 5.0 |
Insoluble
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| Uranium metal |
1,132 |
19.05
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19 |
Insoluble
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| a Source: DOE (1999), Katz and Rabinowitch (1951), Kirk-Othmer (1997).
b Bulk densities of UF4, U3O8, and UO2 are highly variable, depending on the production process and the properties of the starting uranium compounds.
Notation: UF4 = uranium tetrafluoride; UF6 = uranium hexafluoride; UO2 = uranium dioxide; UO2F2 = uranyl fluoride; U3O8 = triuranium octaoxide.
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Return to Properties of Uranium and its Compounds
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