Chromium (III) Potassium Sulphate Dodecahydrate 99% AR
Chrome alum; Potassium chromium(III) sulfate dodecahydrate
Chromium (III) Potassium Sulphate
Product Code. |
00805 |
Grade |
|
Purity |
99% |
CAS No. |
7788-99-0 |
Molecular Formula |
KCr(SO4)2.12H2O |
Molecular Weight |
499.39 |
H.S.Code |
2833.29900 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
Violet crystalline |
Odour |
Odorless |
| Melting point/ Freezing point [°C] |
89 °C |
Density [g/cm3] |
1.826 |
Solubility in water [% weight] |
Soluble in water |
Packaging
Specification
| Appearance | Violet crystalline powder |
| Assay (iodometric) | 99 - 102% |
| Substance insoluble in water | Max 0.01% |
| Chloride (Cl) | Max 0.002% |
| Lead (Pb) | Max 0.005% |
| Copper (Cu) | Max 0.001% |
| Nickel (Ni) | Max 0.001% |
| Iron (Fe) | Max 0.01% |
| Aluminium (Al) | Max 0.005% |
| Ammonium (NH4) | Max 0.01% |
| Heavy metal (as Pb) | Max 0.01% |
Safety Information and Hazard Symbols