ALUMINIUM POTASSIUM SULPHATE DODECAHYDRATE
ALUMINIUM POTASSIUM SULPHATE DODECAHYDRATE AR/ACS
Conforms to BP, Ph Eur, USP
Short Name: ALUMINIUM POTASSIUM SULPHATE DODECAHYDRATE
Synonym: Alum, Potassium alum, Potassium aluminum sulfate dodecahydrate
Basic Details
Article No.
LG0220
Grade
AR/ACS , Conforms to BP, (mesh size 12-16)
Purity
99%
CAS No.
7784-24-9
HS Code
2833.3030
Shelf Life
60 Months
Packings Avialable
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
Chemical Specifications
Appearance
White crystalline powder
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 & Hazard Symbols
Safety Statement
22-24/25