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Product Information

Basic information about this product

Article No. 006228
Grade Extra Pure
Purity 98.5%
CAS No. 7778-80-5
Molecular Formula K2SO4
Molecular Weight 174.27
H.S. Code 2833.2990
Shelf Life 60 Months

Product Description

Detailed information about the product

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)

Specifications

Appearance White crystalline powder Assay (Titration after Ion exchange) 98.5 - 101.0%
pH (5% solution) 5.5 - 8.5 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%
Loss on drying (at 105°C) Max 1.0%

Safety Information and Hazard Symbols

Safety Statement: 22-24/25