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Aluminium Sulphate AR

Aluminium Sulphate AR

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ALUMINIUM SULPHATE AR

 

Specifications:

Synonym: Alum
Cas no: 7784-31-8
Molecular formula: Al2(SO4)3•16H2O
Molecular weight: 630.38
Description: White crystalline powder
Specifications
Solubility: Very soluble in water, insoluble in ethanol
Identification: Aluminium =+ve & sulphate =+ve
Water insoluble matter: Max. 0.005%
Appearance of solution:
  • Dissolve 50 gm in carbon dioxide free water to produce 500 ml.
  • The solution in colourless and not more than slight turbid.
Ph of 5% solution: 2.5-4.0
Chloride: Max. 0.001%
Ammonium: Max. 0.02%
Copper: Max. 0.0002 %
Iron: Max 0.004%
Lead: Max. 0.001%
Potassium: Max 0.005%
Sodium: Max. 0.02 %
Assay: Min 98 0%