Names | |
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IUPAC name
Curium hydroxide
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Systematic IUPAC name
Curium(3+) oxidanide | |
Identifiers | |
3D model (
JSmol)
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PubChem
CID
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CompTox Dashboard (
EPA)
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Properties | |
CmH3O3 | |
Molar mass | 298 g·mol−1 |
Appearance | colorless or pale yellow solid |
insoluble | |
Structure | |
hexagonal, UCl3 structure [1] | |
P63/m, No. 176 [2] | |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
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Curium hydroxide Cm(OH)3 is a radioactive compound first discovered in measurable quantities in 1947. It is composed of a single curium atom and three hydroxy groups. It was the first curium compound ever isolated. [3] [4]
Curium hydroxide is an anhydrous colorless [2] or light-yellow [5] amorphous gelatinous solid that is insoluble in water. [1]
Due to self-irradiation, the crystal structure of 244Cm(OH)3 decomposes[ clarification needed] within one day (244Cm has a half-life of 18.11 years); for 241Am(OH)3 the same process takes 4 to 6 months (241Am has a half-life of 432.2 years). [2]