Sodium metabisulfite or sodium pyrosulfite (IUPAC spelling; Br. E. sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na2S2O5. The substance is sometimes referred to as disodium metabisulfite. It is used as a disinfectant, antioxidant, and preservative agent.
Sodium metabisulfite is a reducing agent used in dough. It is used frequently in cookie and cracker production. It is also used as a preservative for baked goods, wine, dried fruit and jams due to its antioxidant capacity.
Sodium Metabisulfite is a white crystalline or powder solid with a slight sulfur odor. Toxic by inhalation. Strongly irritates skin and tissue. Noncombustible, but may decompose to emit toxic oxide fumes of sulfur and sodium when heated to high temperature. A corrosive acid when mixed with water. Used as a food preservative and as a laboratory reagent.
Sodium metabisulphite is used as a preservative in dried foods and canned juices, amongst others. It is also being used as an important additive in the sea food processing majorly shrimps. Sodium metabisulphite is also used as a softener in dough for making bakery products.
The global increase in demand for packaged food products is expected to boost the sodium bisulphite market with application in the food and beverage industry. Moreover, the demand for food additives and preservatives is also expected to fuel the growth of the market. Furthermore, increase in research and development in new drug formulation has triggered the market demand of sodium metabisulphite in the pharmaceutical industry. Sodium metabisulphite is used in commercial wines to prevent oxidation and preserve flavor, which is likely to gain traction with increase in new brewery firms. With the increase in furniture and dcor demand, the market for sodium metabisulphite is expected to gain significant demand owing to its excellent bleaching properties. However, laboratory tests have shown carcinogenic results on exposure to sodium metabisulphite, which is expected to hinder the market growth. Rapid industrial expansion is expected to drive its market.
The global Sodium Metabisulphite market is projected to reach a value of US$ 266.5 Mn, recording a CAGR of 5.3%.