Potassium Carbonate may be monoclinic crystal, white powder,
granular crystal or prill. The relative density is 2.428 and the
melting point is at 891 degree C .It is easily soluble in water
forming a slightly alkaline solution. It is insoluble in alcohol
and ether. It has strong hygroscopicity. It easily cakes and turns
into Potassium Bicarbonate through absorbing carbon dioxide when
exposed to the air for a long time.
Potassium Carbonate, %
Chloride (KCL), %
Sulfate (K2SO4), %
Ferric (Fe), %
Water Insoluble, %
Heavy Metal (as Lead), mg/kg
Arsenic (As), mg/kg
Loss on drying, %
1. It is used as raw materials in manufacturing electro tube, TV
kinescope, computer display, and is applied in optical glass
improving clarity, strength and refractive index.
2. It is applied in electrode avoiding electric arc breaking-off
during welding, and is used to produce food additives like
potassium sorbate, monopotassium phosphate, etc.
3. It is foliar spray fertilizer and a constituent of compound
fertilizer. In dyeing industry, and is used to produce vat dyestuff
and discharge of ice dyeing.
4. It is absorbent removing hydrogen sulfide and carbon dioxide;
dry powder extinguisher mixed with soda; auxiliary raw material for
producing alcohol and acetone; and anti-aging agent in rubber
5. Its solution is used in boiling and scouring of cotton cloth and
wool's degreasing. Used in manufacture of printing ink,
photograph-drug, polyester, explosives, electroplating, tanning,
ceramic, building materials, crystals and medicine.
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