TIB Chemicals AG Potassium sulphite solution

Potassium sulfite is widely used in industry. It is produced within the framework of the combustion of black powder, thus in the reaction of a sulfur dioxide with water. If it is synthesized in this way, further potassium carbonate solution is required. The product is used, for example, as a reducing agent and fixing agent in the photographic industry in developer solutions. Furthermore, potassium sulfite solution is used as an etching agent in the electrical industry or as a bleaching agent for sugar.

A further field of application is also given as solid metabisulfite form, as an additive in foodstuffs such as wine. Here, the potassium metabisulfite sulfite functions as a browning accelerator. The additive potassium metabisulfite is also known as E224 and is used as a preservative, antioxidant or color stabilizer. This includes the sulfurization of wine. In addition, potassium metabisulfite is also referred to in this context as dumpling whitener, so that the dumplings do not become gray during processing. In the food industry, potassium metabisulfite prevents the reaction of the food with oxygen. This makes it possible to preserve many different, generally very quickly perishable foods, as well as transport them over longer distances. In this way no dyes or flavors are degraded, the product remains "fresh" in the quality relevant for the trade. However, potassium metabisulfite destroys the vitamin B1 and is therefore not used in milk products or cereal products.

Further fields of application of potassium sulfite solution K₂SO₃ (CAS No. 10117-38-1)

Potassium sulfite solution from TIB Chemicals is indispensable in industry. As a reducing agent in photography, the product serves as an important component of the developer solution for the development of the negatives. Also the chemical industry uses the product as a reducing agent. Many different processes can thereby be optimized with accurate dosage and application in line with demand. In the solid state the product can be easily stored. Moreover, it is soluble in water. For the production of potassium sulfite, potassium carbonate is mixed with sulfur dioxide. It is a potassium salt with sulfurous acid.

It reacts in the air to potassium sulfate. Potassium sulfite is formed by the reaction of potassium hydroxide with sulfur dioxide. In industry, the product is usually used as a 45% solution. Important functions are taken by potassium sulfite solution K₂SO₃ (CAS No. 10117-38-1) in the following ranges:

-in the photo industry
-in the chemical industry

Concluding remarks on the use of potassium sulfite solution K₂SO₃ (CAS No. 10117-38-1)

Potassium sulfite solution is needed in various fields of industry. It is generally used as a reducing agent in the chemical industry, for example, as a developer solution in photography. A large area of application is the food industry, in case of metabisulfite, as a preservative and for antioxidation. Here, it plays a essential role as a product for the prolonged preservation of rapidly perishable foods, without sacrificing flavor or natural dyes.