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China and the United States are the leading exporters of sodium sulfite, collectively accounting for a majority of global shipments, while India, Germany, and Mexico represent the largest importers. Sodium sulfite prices have remained relatively stable amid consistent demand from pulp and paper, food preservation, and water treatment sectors. Export volumes from China have increased modestly over the past two years, while U.S. exports have held steady, and Indian imports have grown at a compound annual rate of approximately 4% since 2022.
Sodium sulfite is a white, crystalline solid, typically odorless and non-volatile, with a melting point of approximately 500 °C (decomposes before boiling). It is an inorganic salt and reducing agent, composed of sodium cations and the sulfite anion (SO₃²⁻). It is widely used as a preservative and antioxidant in food and beverage processing, and as a dechlorinating agent in water treatment. In industrial chemistry, it serves as a key intermediate in the production of dyes, pigments, and sulfur-containing compounds, and finds application in pulp and paper manufacturing, photographic developing solutions, and textile bleaching.
This chemical is included in Fine Chemicals. See more about what is Sodium sulfite and Sodium sulfite SDS information.
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