Sodium Sulphite Anhydrous 98% ACS

What is Sodium Sulphite Anhydrous? It is an inorganic compound widely used as a reducing agent, preservative, and oxygen scavenger in industrial, laboratory, and water treatment applications.

Consistent Quality: We source only high-quality Sodium Sulphite Anhydrous, meeting the standards of ACS, ensuring reliable and consistent performance in laboratory, chemical, and industrial applications.

Shipped from Manchester, UK Facility: Sourced and packaged in non-toxic, chemical-resistant containers to ensure safe handling and maintain product quality during transport.

Frequent Uses

Water Treatment
Used as an oxygen scavenger in boiler and cooling water systems to prevent corrosion.

Photographic Processing
Acts as a preservative in photographic solutions to maintain chemical stability.

Pulp and Paper Industry
Applied in the bleaching and pulping process to reduce chlorine levels and improve processing efficiency.

Chemical and Laboratory Applications
Employed as a reducing agent and reagent in analytical chemistry and industrial formulations.

• Water treatment
• Photography
• Paper manufacturing
• Analytical chemistry

FOOD GRADE CERTIFIED

Minimum Assay: >98%
Molecular Formula: Na2SO3
Molecular Weight: 126.05 g/mol
Melting Point: 884°C
Alkalinity (Na2CO3); < 0.1%
Thiosulphates (S2O3): < 0.01%
Iron (Fe): < 0.0005%
Heavy metals (Pb): < 0.001%
Selenium (Se): < 0.0005%
Arsenic (As): < 0.0001%
Lead (Pb): < 0.0002%
Mercury (Hg): < 0.0001% 

Meets the requirements of EC Directive 96/77 (Food Additives), FCC V (2004), ANSI PH4.275, ISO 418 (Photo Standards). Certified Food Grade.

Cas Number: 7757-83-7

Einecs Number: 231-821-4

HS Code / Commodity Code: 2832100000

Hazard Phrases: H0001