kaliumkarbonaat

Kaliumkarbonaat, also known as potassium carbonate, is an inorganic salt with the chemical formula K2CO3. It is a white, crystalline solid that is highly soluble in water and deliquescent, meaning it readily absorbs moisture from the air. In its pure form, it is odorless.

The compound is produced commercially by electrolysis of potassium chloride followed by reaction with carbon dioxide or by the Leblanc process. Historically, it was obtained by lixiviating wood ashes, hence its common name "potash."

Kaliumkarbonaat has a wide range of industrial and domestic applications. It is used in the production of glass, ceramics, and soaps. In the food industry, it serves as a food additive (E501) for pH regulation and as a leavening agent in baking. It is also employed in the manufacture of dyes, explosives, and pharmaceuticals. In some regions, it is used as a flux in welding. Due to its alkaline nature, it can be used as a drying agent for certain organic liquids.

Chemically, kaliumkarbonaat is a moderately strong base. When dissolved in water, it forms an alkaline solution. It reacts with acids to produce potassium salts, water, and carbon dioxide. It is an essential nutrient for plants, playing a role in enzyme activation and photosynthesis.