thorium dicarbide
- CAS NO.：12071-31-7
- Empirical Formula: C2Th*-
- Molecular Weight: 256.0595
- EINECS: 235-131-4
- Update Date: 2025-12-31 14:38:37
What is thorium dicarbide?
Chemical properties
yellow solid; α form: monoclinic, a=1.0555 nm, b=0.8233 nm, c=0.4201nm; β form: tetr; γ form: cub, a=0.5808 nm; decomposed by water; formed by heating ThO2 and excess carbon; used as a nuclear fuel [HAW93] [CIC73] [KIR83]
Physical properties
α?β transition at 1427°C and β?γ at 1497°C. Decomposed by H2 O with evolution of C2 H6.
Properties of thorium dicarbide
| Melting point: | 2630–2680℃ [HAW93] |
| Boiling point: | -5000℃ [HAW93] |
| Density | 9.000 |
| solubility | reacts with H2O |
| form | yellow monoclinic crystals |
| color | yellow monoclinic crystals, crystalline |
| Resistivity | 30.0 (ρ/μΩ.cm) |
| Water Solubility | decomposed in H2O, with evolution of ethane [KIR83] |
| Crystal Structure | Tetragonal |
| EPA Substance Registry System | Thorium carbide (ThC2) (12071-31-7) |
Safety information for thorium dicarbide
Computed Descriptors for thorium dicarbide
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