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Aluminium Potassium Sulphate (Dodecahydrate)
Alum, Potassium alum, Potassium aluminium sulfate dodecahydrate

Product Code.
00130
Grade
Purity
99%
CAS No.
7784-24-9
Molecular Formula
AIK(SO4)2.12H2O
Molecular Weight
474.38
H.S.Code
2833.30300
Shelf Life
60 Months

Physical Properties

Physical state at 20 °C
Solid
Colour
White crystalline
Odour
Odorless
pH value
3.3
Melting point/ Freezing point [°C]
92 °C
Boiling point [°C]
200°C
Density [g/cm3]
1.757
Solubility in water [% weight]
14% in water

Packaging

Specification

Appearance
White crystalline powder
Assay (ex Al)
99 - 102%
Ammonium (NH4)
Max 0.05%
Chloride (Cl)
Max 0.01%
Iron (Fe)
Max 0.01%
Lead (Pb)
Max 0.01%

Safety Information and Hazard Symbols