Potassium Carbonate Granular

Cas Number


Other Names

Carbonate of potash,

Dipotassium carbonate,

Sub-carbonate of potash,

Pearl ash,


Salt of tartar,

Salt of wormwood

The formula



Potassium carbonate (K2CO3) is a white salt, soluble in water (insoluble in ethanol)[2] which forms a strongly alkaline solution. It can be made as the product of potassium hydroxide's absorbent reaction with carbon dioxide. It is deliquescent, often appearing a damp or wet solid. Potassium carbonate is used in the production of soap and glass.

Physical and Chemical Properties
Physical state and appearance White Solid. (Powdered solid. Deliquescent solid.)
Odor Odorless.
Boiling Point Decomposes
Melting Point 891°C (1635.8°F)
Specific Gravity 2.29 (Water = 1)
Solubility Soluble in cold water.
K2CO3(Total alkali as K2CO3),% 99.85
KCI, % 0.006
Fe, % 0.0001
KOH, % 0.19
Na2CO3, % 0.23
K2SO4, % 0.002
Water, % 0.1
Heavy metal as Pb, ppm 1.5

Potassium carbonate is used in fertilizer industry, rubber chemicals, pesticide industry, dyes industries and other potassium based chemicals drugs & pharmaceutical industry.