Ammonium sulfite

Ammonium sulfite (CAS 10196-04-0), also referenced as diammonium sulfite, is an inorganic salt used industrially as a reducing and oxygen-scavenging agent.

Where is Ammonium sulfite used?

• Pulp and paper: delignification aid that breaks down lignin during chemical pulping to improve fiber yield and paper quality
• Textile and leather: reducing agent in dyeing and tanning
• Water treatment: oxygen scavenger protecting boiler systems and pipelines from oxidative corrosion
• Food and nutrition: preservative and antioxidant that inhibits microbial growth and prevents oxidative degradation in processed foods
• It functions primarily as a preservative and process chemical.

Good to know: Buyers should confirm purity levels and solution concentration with suppliers, as these vary by application. Compliance with international quality standards such as FCC or USP may be required depending on the region.

Commercial specifications

• Purity levels and solution concentration vary by application; confirm with suppliers
• FCC or USP compliance may be required depending on region