Molecular formula: NH4Al(SO4)2·12H2O
Relative molecular weight: 453.08
Properties: Appearance is colorless, transparent, translucent block, or crystalline powder.
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+86-17803873799Aluminum Ammonium Sulphate is an inorganic substance with the molecular formula NH4Al(SO4)2·12H2O. It is soluble in water and glycerol, more easily soluble in boiling water, the aqueous solution is acidic, and insoluble in ethanol.
Used as coagulant in sewage purification; used in tanning industry as aluminum tanning agent and post-treatment agent for skin tanning;
In the dye industry, it is used as a dye resist; in the paper industry, it is used as a dyeing agent for paper sizing; in the glass industry, it is used as a coloring agent for yellow glass; in medicine, it is used as an astringent; in the printing and dyeing industry, it is used as a mordant; in addition, it is also used in pigments , electroplating, starch and other industrial sectors; food grade products are used as buffering agents and leavening agents.
| Aluminum Ammonium Sulphate | |||
| ltem | Unit | standard | result |
| coloration | / | white | white |
| apperance | / | crystal | crystal |
| Assay | % | ≥99.5 | 99.69 |
| Moisture content |
% | 4 | 1 |
| cutter | mg/kg | 0.01 | 0.001 |
| (Pb) | mg/kg | ≤5.0 | 0 |
| （AS） | mg/kg | ≤2.0 | 0.59 |
| （F） | mg/kg | ≤30.0 | 1.8 |
| （Se） | mg/kg | ≤30.0 | 0.92 |
| (Ni) | mg/kg | / | / |
| （Cr） | mg/kg | / | / |
| (Cd) | mg/kg | / | / |
| (Mn ) | mg/kg | / | / |
