ALUMINIUM SULPHATE OCTADECAHYDRATE Extra Pure
ALUMINIUM SULPHATE OCTADECAHYDRATE Extra Pure
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Short Name: ALUMINIUM SULPHATE OCTADECAHYDRATE
Other Names: Alum; Dialuminum sulfate octadecahydrate
Chemical Specifications
Appearance : A white crystalline powder
Assay (as AI2(SO4)3; complexometric) : 51 - 59%
pH (2% solution in water) : 2.5 - 4.0
Chloride (Cl) : Max 0.005%
Heavy metal (as Pb) : Max 0.002%
Ammonium (NH4) : Max 0.005%
Arsenic (As) : Max 0.001%
Calcium (Ca) : Max 0.02%
Iron (Fe) : Max 0.005%
Potassium (K) : Max 0.2%
Alkalies & alkaline earth metals : Max 0.4%
| Basic | |
| CAS No. | 7784-31-8 |
| Grade | Extra Pure |
| HS Code | 2833.2210 |
| Molecular Formula | AI2(SO4)3.18H2O |
| Molecular Weight | 666.42 |
| Shelf Life | 60 Months |
| Physical Properties | |
| Colour | Colour |
| Melting point/ Freezing point [°C] | Melting point/ Freezing point [°C] |
| pH value | pH value |
| Physical state at 20 °C | Physical state at 20 °C |
| Solubility in water [% weight] | Solubility in water [% weight] |
| Safety | |
| Hazardous Statement | H318 |
| Precaution Statement | P280-P305 + P351 + P338 |
| Signal Word | Danger |
| Symbol | GHS05 |