Potassium Carbonate
Potassium carbonate is a mineral compound with the chemical formula K₂CO₃. This substance is in the form of a white, odorless powder and is highly soluble in water. It is interesting to know that this compound mostly appears as a wet solid and will become water upon absorbing moisture.
Properties of Potassium Carbonate
Alkalinity: An aqueous solution of potassium carbonate has a strong alkaline property.
Moisture absorption: This substance is highly moisture-absorbent and for this reason is stored in closed containers.
Solubility: It is highly soluble in water but insoluble in alcohols such as methanol and ethanol.
Potassium Carbonate Applications
Glass industry: It is used as a flux in glass production to reduce the melting temperature of raw materials and increase the viscosity of the melt.
Soap industry: It is used as an alkaline agent in the production of soft and liquid soaps to saponify fats.
Food industry:
As an acidity regulator in foods
As a leavening agent in some baked goods
As a preservative in some foods
Chemical industry:
As a catalyst in some chemical reactions
As a drying agent
Other uses:
In the production of dyes and inks
In the production of batteries
In water purification
Precautions when using potassium carbonate
Skin and eye contact: Contact with skin and eyes can cause irritation and burns.
Dust inhalation: Inhalation of dust from this substance can cause respiratory problems.
Concentrated solutions: Concentrated solutions of potassium carbonate are highly corrosive.
Applications
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Potassium carbonate
| Products | CAS number | Grade | Vapor pressure | Physical appearance | Density (at 20°C) | Melting point | Solubility in water |
|---|---|---|---|---|---|---|---|
| Potassium Carbonate | 07/08/0584 | Industrial, laboratory, pharmaceutical and food (E501) | Negligible (practically zero at room temperature) | White, odorless solid, in powder or crystal form | 2.43 g/cm³ | About 891°C | Very soluble – 1120 g/L at 20°C |






