Ammonium Alum USP
Ammonium Alum is a white crystalline double sulfate usually encountered as the dodecahydrate. It is used in small amounts in a variety of niche applications.
Ammonium Alum is used in water purification, in vegetable glues, in porcelain cements, in deodorants, in tanning, dyeing and in fireproofing textiles. It is a common ingredient in animal repellant sprays.
Chemical Name: Ammonium Alum
Mol. Formula: AlNH4(SO4)2.12H2O
Mol. Weight: 453.32 g/mol
CAS No.: 7784-26-1
|Appearance||It appears as a colorless crystalline substance, odorless|
|Solubility||Soluble in water and glycerol, insoluble in alcohol|
|Appearance of solution||The solution is clear and colorless|
|Loss on drying||Between 45% and 48%|
|Alkalies and alkaline earths||Maximum 0.5%|
|Heavy metals||Maximum 0.002%|
|Organic volatile impurities||Passes test|
|Residual solvents||Passes test|
|Assay||Not less than 99% and not more than 100.5%|
Shelf life, Storage and Packing
It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.
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We observe WHO Good manufacturing practice and Good laboratory practice.