POTASSIUM SULPHATE
POTASSIUM SULPHATE Extra Pure
Confirms to BP
Short Name: POTASSIUM SULPHATE
Synonym: sulphate of potash, arcanite
Basic Details
Article No.
LG3782
Grade
Extra Pure
Purity
98.5%
CAS No.
7778-80-5
HS Code
3104.3000
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
White crystalline
Odour
Odorless
pH value
~7
Melting point/ Freezing point [°C]
1067°C
Boiling point [°C]
1689°C
Density [g/cm3]
2.662
Solubility in water [% weight]
110 g/l (20°C)
Chemical Specifications
Appearance
White crystalline powder
Assay (acidimetric)
98.5 - 101.0%
pH (5% solution)
5.5 - 8.5
Identity
Passes test
Appearance of solution
Passes test
Acidity or alkalinity
Passes test
Chloride (Cl)
Max 0.004%
Heavy metal (as Pb)
Max 0.002%
Iron (Fe)
Max 0.001%
Magnesium (Mg)
Max 0.002%
Calcium (Ca)
Max 0.02%
Sodium (Na)
Max 0.1%
Loss on drying (at 105°C)
Max 1.0%
Safety Information & Hazard Symbols
Safety Statement
22-24/25