Packings
00970
Article No. 00970
Purity 99%
Molecular Formula AlK(SO4)2.12H2O
H.S. Code 2833.3030
Grade AR/ACS
CAS No. 7784-24-9
Molecular Weight 474.38
Shelf Life 60 Months

Physical Properties

Specifications

Safety Information and Hazard Symbols

Symbol:


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