Another name: Potash

Molecular formula: K2CO3

Molecular weight:  138.21

Specific gravity: 2.29

Melting point: 891°C

Character:  It is white powder or colorless crystals, easily deliquescence in the air, easily soluble in water and solution; insoluble in ethanol and ether.

Quality index

Item

Index

Potassium carbonate(K₂CO₃)%≥

99

Chloride(KCL)Content% ≤

0.01

Sulphonium compounds(K₂SO₄)Content% ≤

0.01

Ferric(Fe)Content% ≤

0.001

Water insoluble% ≤

0.02

Heavy metal(Pb)% ≤

0.002

Arsenic(As)Content% ≤

0.0003

Ignition loss% ≤

0.6

Analytical standard: HG2452-93