Home > Pallav Chemicals > Metallic Salts (Metal Salts) > Aluminium Potassium Sulphate Dodecahydrate 99% AR
Aluminium Potassium Sulphate Dodecahydrate 99% AR
Conforms to BP, Ph Eur, USP
Alum, Potassium alum, Potassium aluminum sulfate dodecahydrate
Product Code. |
00131 |
Grade |
00131 |
Purity |
99% |
CAS No. |
7784-24-9 |
Molecular Formula |
AlK(SO4)2.12H2O |
Molecular Weight |
474.38 |
H.S.Code |
2833.30300 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
White crystalline |
Odour |
Odorless |
| pH value |
3.3 |
Melting point/ Freezing point [°C] |
92 °C |
Boiling point [°C] |
200°C |
| Density [g/cm3] |
1.757 |
Solubility in water [% weight] |
14% in water |
Packaging
Specification
| Appearance | White crystalline powder/crystals |
| Assay (complexometric) | 99.0-100.5% |
| Identification | To comply USP, BP test |
| Appearance of solution | Passes test |
| Insoluble matter | Max 0.005% |
| pH (10% solution in water) | 3.0 -.3.5 |
| Chloride (Cl) | Max 0.0005% |
| Ammonium (NH4) | Max 0.005% |
| Arsenic (As) | Max 0.0002% |
| Copper (Cu) | Max 0.0005% |
| Iron (Fe) | Max 0.0005% |
| Heavy metal (as Pb) | Max 0.001% |
| Sodium (Na) | Max 0.02% |
| Loss on drying (at 400°C) | 43 - 46% |
Safety Information and Hazard Symbols