Applications
Potassium carbonate is mainly used in the production of soap and glass. Carbonate of potash, dipotassium carbonate, sub-carbonate of potash, pearl ash, potash, salt of tartar, salt of wormwood.
 
Description
It is a white salt, which is soluble in water and forms a strongly alkaline solution. It is deliquescent, often appearing as a damp or wet solid. Potassium carbonate is mainly used in the production of soap and glass.
 
Preparation
Potassium carbonate is today, prepared commercially, by the reaction of potassium hydroxide with carbon dioxide: 2 KOH + CO2 → K2CO3 + H2O. From the solution crystallizes the sequestrate K2CO3·3⁄2H2O (“potash hydrate”). Heating this solid above 200 °C (392 °F) gives the anhydrous salt.
 
Chemical Properties
Potassium carbonate (PCN) is a white, water-soluble salt known for its alkaline properties and its ability to absorb moisture from the air, often used in various applications including as a fertilizer, flux in metallurgy, and in the production of soap and glass.
 
Definition
Potassium carbonate is the inorganic compound with the formula K2CO3. It is a white salt, which is soluble in water and forms a strongly alkaline solution. It is deliquescent, often appearing as a damp or wet solid. Potassium carbonate is mainly used in the production of soap and glass.