káliummetabiszulfitet

Káliummetabiszulfit, also known as potassium metabisulfite, is a chemical compound with the formula K2S2O5. It is a white crystalline powder that is soluble in water. Káliummetabiszulfit is a salt of metabisulfite, which is a reduction product of sulfur dioxide. It is often used as a food additive, primarily as a preservative and antioxidant.

In the food industry, káliummetabiszulfit is designated by the E number E224. It functions by inhibiting the growth of microorganisms such as bacteria and yeasts, thus extending the shelf life of various food products. It is particularly effective in preventing the oxidation of certain foods, which can lead to discoloration and spoilage. Common applications include dried fruits, wines, juices, and processed potatoes.

Beyond its food applications, káliummetabiszulfit also finds use in other industries. It can be employed as a reducing agent in chemical synthesis and as a disinfectant in water treatment. In photography, it has been used as a component in developing solutions. Due to its sulfur dioxide releasing properties, it is important to handle káliummetabiszulfit with care, as it can cause respiratory irritation in sensitive individuals. Those with sulfite sensitivities should avoid foods and products containing this additive.