kalsiumsulfittti

Kalsiumsulfiitti is an inorganic compound with the chemical formula CaSO₃. It is the calcium salt of sulfurous acid. Kalsiumsulfiitti is typically found as a white crystalline solid. It is sparingly soluble in water, and its solubility decreases with increasing temperature. This compound is not naturally abundant and is primarily produced industrially.

Kalsiumsulfiitti plays a role in certain industrial processes. It can be formed as a byproduct in some chemical reactions, particularly those involving sulfur dioxide and calcium compounds. For instance, it can be a component of flue gas desulfurization systems, where it helps remove sulfur dioxide emissions from industrial sources. In these processes, calcium compounds react with sulfur dioxide to form calcium sulfite, which can then be further processed.

In historical contexts, kalsiumsulfiitti has been used in some older papermaking processes. It can also be found in certain food products, where it may act as a preservative or antioxidant, though its use in food is subject to regulatory approval and may be less common than other sulfites. The compound is generally considered to have low toxicity.