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ALUMINIUM POTASSIUM SULPHATE DODECAHYDRATE AR/ACS

Conforms to BP, Ph Eur, USP
Alum, Potassium alum, Potassium aluminum sulfate dodecahydrate

COAs

Packings

500 g (00500)

2500 g (02500)

25 Kg (0025K)

50 Kg (0050K)

1PW1200500 1PW1202500 1PDL00030K
Print friendly version
Article No. 00970 Grade AR/ACS
Purity 99% CAS No. 7784-24-9
Molecular Formula AlK(SO4)2.12H2O Molecular Weight 474.38
H.S. Code 2833.3030 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

Specifications

Appearance White crystalline powder/crystals Assay (complexometric) 99.0-100.5%
Identification To comply USP, BP test Appearance of solution Passes test
Insoluble matter Max 0.005% pH (10% solution in water) 3.0 -.3.5
Chloride (Cl) Max 0.0005% Ammonium (NH4) Max 0.005%
Arsenic (As) Max 0.0002% Copper (Cu) Max 0.0005%
Iron (Fe) Max 0.0005% Heavy metal (as Pb) Max 0.001%
Sodium (Na) Max 0.02% Loss on drying (at 400°C) 43 - 46%

Safety Information and Hazard Symbols

Safety Statement: 22-24/25
Revision Date: 12-Jan-2023

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