Global InformationPotassium hypochromate information
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| Names | |
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Other names
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| Identifiers | |
3D model (JSmol)
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SMILES
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| Properties | |
Chemical formula
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K3CrO4 |
| Molar mass | 233.2886 g/mol |
| Appearance | Green solid |
| Melting point | 1,000 °C (1,830 °F; 1,270 K) (decomposes) |
Solubility in water
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Soluble, decomposes (25 °C)[1] |
| Structure | |
Crystal structure
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Similar to potassium hypomanganate |
| Thermochemistry | |
Std enthalpy of
formation (ΔfH⦵298) |
-370 ± 2 kcal mol−1[2] |
| Hazards | |
| Flash point | Not flammable |
| Related compounds | |
Other anions
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Potassium hypomanganate |
Other cations
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Sodium hypochromate |
Related chromates
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Potassium chromate Potassium perchromate |
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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Potassium hypochromate is a chemical compound with the formula K3CrO4 with the unusual Cr5+ ion. This compound is unstable in water but stable in alkaline solution[1] and was found to have a similar crystal structure to potassium hypomanganate.[2]
- ^ a b N. Bailey; M. C. R. Symons (1957). "Structure and reactivity of the oxyanions of transition metals. Part III. The hypochromate ion". Journal of the Chemical Society (Resumed). 35: 203–207. doi:10.1039/jr9570000203.
- ^ a b Lawrence H. Johnson; Loren G. Hepler; Carlos E. Bamberger; Donald M. Richardson (1978). "The enthalpy of formation of potassium chromate(V), K3CrO4(c)". Canadian Journal of Chemistry. 56 (4). The Ohio State University: National Research Council: 446–449. doi:10.1139/v78-071.