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CAS NO 584-08-7 Potassium carbonate K2CO3 historically used for soap, glass, and ceramic production
Potassium carbonate (K2CO3) is a white salt, soluble in water (insoluble in
ethanol) 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.
Potassium carbonate is the primary component of potash and the more refined
pearl ash or salts of tartar. Historically, pearl ash was created by baking potash in a
kiln to remove impurities. The fine, white powder remaining was the pearl ash. The
first patent issued by the US Patent Office was awarded to Samuel Hopkins in 1790
for an improved method of making potash and pearl ash.
In late 18th century North America, before the development of baking powder, pearl
ash was used as a leavening agent in quick breads.
Today, potassium carbonate is prepared commercially by the electrolysis of
potassium chloride. The resulting potassium hydroxide is then carbonated using
carbon dioxide to form potassium carbonate, which is often used to produce other
2KOH + CO2 → K2CO3 + H2O
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Potassium carbonate K2CO3 historically is used for soap, glass, and
Inhalation First Aid
Fresh air, rest.
Skin First Aid
Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eye First Aid
First rinse with plenty of water for several minutes (remove contact lenses if easily
possible),then refer for medical attention.
Ingestion First Aid
Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink.
Refer for medical attention .
In case of fire in the surroundings, use appropriate extinguishing media.
Accidental Release Measures
Personal protection: particulate filter respirator adapted to the airborne
concentration of thesubstance. Sweep spilled substance into covered containers.
Wash away remainder with plenty of water.
Accidental release measures. Do not let product enter drains
Dry. Separated from strong acids.
Storage Conditions Keep tightly closed.
Potassium carbonate is stored in bunkers; the ventilation air must be dry because
of the hydroscopicity of the product.
Keep container tightly closed in a dry and well-ventilated place.
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