Sodium sulfite has a wide range of applications and the industry is shifting towards high efficiency and environmental protection.

Sodium sulfite is an inorganic compound. Under greenhouse conditions, sodium sulfite appears as white, monoclinic crystals or granular powder. It is soluble in water but insoluble in ethanol. Sodium sulfite is extremely reducible and can reduce copper ions to cuprous ions. It can also reduce weak oxidants such as phosphotungstic acid. The sodium sulfite aqueous solution becomes alkaline due to hydrolysis and releases toxic gas sulfur dioxide when acidified.

As a chemical raw material, sodium sulfite is widely used in printing and dyeing, chemical industry, food, scientific research, papermaking, electronics, water treatment, photosensitivity and other industries. In the field of scientific research, sodium sulfite can be used as a reducing chemical reagent for the preparation of sulfur dioxide, sodium thiosulfate, etc., and can also be used for trace analysis and determination of tellurium and niobium; in the field of photosensitivity, sodium sulfite is mainly used as a developer; in the field of electronics, sodium sulfite Mainly used to manufacture photoresistors.

According to the “2022 Sodium Sulfite Industry Segment In-depth Market Research Report released by the Industrial Research Center, due to its wide range of application fields, sodium sulfite The market demand is vast. In 2021, my country’s sodium sulfite market size will be around 350 million yuan. It is expected that the sodium sulfite market will continue to maintain a growth trend from 2022 to 2027, with an average annual compound growth rate of more than 3.0%.

The production process of sodium sulfite is divided into using sulfur as raw material, using SO2-containing industrial exhaust gas as raw material, using sodium metabisulfite as raw material, etc. The production process of sodium sulfite is diverse, but the process is similar, and mostly contains SO2 absorption, anhydrous sodium sulfite crystallization and other links. In recent years, due to increased demand and international factors, the prices of upstream raw materials for sodium linoleate have increased.

Affected by the COVID-19 epidemic, the operating rate of global sodium sulfite companies has declined. In the domestic market, sodium sulfite companies are mainly distributed in East China and Central China. The main production companies include Sanxiang Chemical, Haolin Chemical, Aoke Chemical, Weichuang Chemical, Xinghua Chemicals, etc., market competition is intensifying.

my country is a major producer of sodium sulfite. As environmental protection supervision becomes increasingly strict, the operating pressure of lagging sodium sulfite companies increases and they gradually withdraw from the market. Against this background, the sodium sulfite market continues to gather towards leading companies. In 2021, the production capacity of major domestic sodium sulfite production companies Accounting for more than 70%. In the context of carbon neutrality and carbon peak strategies, sodium sulfite production should continue to transform toward high efficiency, environmental protection, high quality, and energy conservation.

Industry analysts said that sodium sulfite has a wide range of applications and a broad market demand. my country is a major producer and consumer of sodium sulfite and ranks highly in the international market. It has a certain say, there are many domestic sodium sulfite production companies, and the market competition is fierce. As environmental protection requirements become increasingly stringent, backward production capacity will exit the market at an accelerated pace, and the sodium sulfite market concentration will then further increase.