Chromium (III)-potassium sulfate
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| Name | Chromium (III)-potassium sulfate / chromium-potassium sulphate / chromium-potassium alum |
| CAS number | 10141-00-1 |
| Chemical formula | KCr(SO 4 ) 2 |
Chromium (III)-potassium sulfate is a salt that looks like dark purple needles. It dissolves in water and decomposes when heated. Can form crystalline hydrates .
It is used in the textile industry and as a hardener in photographic film gelatin emulsions .