káliumszulfáttá

Potassium sulfate is a chemical compound with the formula K2SO4. It is an inorganic salt that occurs naturally as the mineral arcanite. It is a white, crystalline solid that is highly soluble in water. Potassium sulfate is a common ingredient in fertilizers, as it provides both potassium and sulfur, which are essential nutrients for plant growth. It is also used in the production of glass, as a clarifying agent in winemaking, and as a component in some fire suppression systems.

The production of potassium sulfate can be achieved through several methods. One common method involves the reaction of potassium chloride with sulfuric acid. Another method is the extraction from natural brines or mineral deposits. Historically, it has also been produced as a byproduct of other chemical processes.

In agriculture, potassium sulfate is valued for its low salt index, meaning it is less likely to damage plants through osmotic stress compared to some other potassium fertilizers. Its sulfur content is also beneficial, as sulfur is a key component of amino acids and proteins. Due to these properties, it is often preferred for crops that are sensitive to chloride, such as tobacco, potatoes, and citrus fruits.

Beyond its agricultural uses, potassium sulfate finds application in various industrial processes. It is used in the manufacturing of certain types of glass and ceramics. In the food industry, it can act as a food additive, though its use is less common than other potassium salts. It also has a role in some chemical analyses and laboratory reagents.