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Potassium Carbonate

  • Product Name: Potassium carbonate
  • Cas No.: 584-08-7
  • Purity: 85.2%
  • MF: K2CO3
  • Appearance: White, hygroscopic solid
  • Package: bags
  • Certificate: ISO
  • Application: It is a chemical compound that finds various industrial and commercial applications
  • Sample: Available

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Product Detail

Potassium carbonate is a kind of inorganic substance, white crystalline powder, density 2.428g/cm3, melting point 891℃. Soluble in water, aqueous solution is alkaline, insoluble in ethanol, acetone and ether. Strong hygroscopic, exposed to the air can absorb carbon dioxide and water, into potassium bicarbonate, should be sealed packaging.

Product Parameter

Synonyms Carbonate of potash, dipotassium carbonate, sub-carbonate of potash, pearl ash, potash, salt of tartar, salt of wormwood.
Chemical Formula K2CO3 CAS Number 584-08-7
Molar mass 138.205 g/mol
Appearance White, hygroscopic solid
Odor odorless
Density 2.43 g/cm3
Melting point 891 °C (1,636 °F; 1,164 K)
Boiling point Decomposes
Acidity (pKa) 10.25
Flash point Non-flammable
Solubility 3.11 g/100 mL (25 °C) methanol
Insoluble in alcohol, acetone
Solubility in water 110.3 g/100 mL (20 °C)
149.2 g/100 mL (100 °C)
Stability Stable. Incompatible with moisture, acids, magnesium bromine trifluoride and magnesium bromine trichloride.
Storage condition Store at +5°C to +30°C.


1. Potassium carbonate can be used to produce optical glass, which can improve the transparency, strength and refractive coefficient of glass.
2. It is also used in the production of welding rods, which can prevent the arc breaking phenomenon during welding.
3. Used for the production of VAT dyes and their dyeing and ice bleaching.
4. Used as an adsorbent to remove hydrogen sulfide and carbon dioxide.
5. Potassium carbonate mixed with soda ash can be used as dry powder fire extinguishing agent.
6. It can also be used as an auxiliary raw material for acetone and alcohol production and as an antioxidant in rubber production.
7. Chemical potassium carbonate aqueous solution can be used for cooking cotton cloth and degreasing wool.
8. It is also used in the production of ink, photo medicine, polyester, medicine, electroplating, leather, ceramics, building materials, crystal, potash soap and medicine.
9. Heavy potassium carbonate is mainly used as raw materials for picture tube glass shells, widely used as raw materials for glass and special glass, and used for decarbonization of large fertilizers.
10. It can be used as a leavening agent in food.
11. As an alkaline agent and dough improver, and can inhibit the acid of noodles, can be used for noodle food, according to the production needs of appropriate use.
12. Used for washing and processing of exposed photosensitive materials.
13. For analytical reagents, reference reagents and fluxes of molten silicates and insoluble sulfates.

Multiple uses of products

It use in Chemical Manufacturing,Glass and Ceramics Industry,Soap and Detergent Industry,Food and Beverage Industry,Pharmaceutical Industry,Fertilizer Industry,Textile Industry,Wastewater Treatment,