Aluminium Sulphate Octadecahydrate 98% AR
Alum; Dialuminum sulfate octadecahydrate
Product Code. |
00135 |
Grade |
|
Purity |
Min 98% |
CAS No. |
7784-31-8 |
Molecular Formula |
AI2(SO4)3.18H2O |
Molecular Weight |
666.42 |
H.S.Code |
2833.22100 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
White powder |
pH value |
3 - 4 |
| Melting point/ Freezing point [°C] |
86 °C |
Solubility in water [% weight] |
Soluble in water |
Packaging
Specification
| Appearance | A white crystalline powder |
| Assay ( as AI2(SO4)3.18H2O]; complexometric) | 98 - 102% |
| Insoluble matter | Max 0.005% |
| Reaction | Min pH 2.5 |
| Chloride (Cl) | Max 0.001% |
| Ammonium (NH4) | Max 0.002% |
| Copper (Cu) | Max 0.001% |
| Iron (Fe) | Max 0.002% |
| Heavy metal (as Pb) | Max 0.001% |
| Calcium (Ca) | Max 0.01% |
| Magnesium (Mg) | Max 0.002% |
| Potassium (K) | Max 0.005% |
| Sodium (Na) | Max 0.02% |
| Substance not precipitated by ammonia (as SO4) | Max 0.2% |
Safety Information and Hazard Symbols
Symbol: GHS05
Signal Word: Danger
Hazardous Statement: H318
Precaution Statement: P280-P305 + P351 + P338