Sodium Metabisulphite 97-100.5% FG

What is Sodium Metabisulphite? It is an inorganic compound (chemical formula Na₂S₂O₅) commonly used as a reducing agent, preservative, and bleaching agent in various industries. It is typically found as a white or slightly yellowish crystalline powder that is highly soluble in water. 

Consistent Quality: We source only high-quality Sodium Metabisulphite, meeting Food Grade standards, ensuring reliable and consistent performance in food, pharmaceutical, 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

Bleaching Agent
As a bleaching agent in various industries, including the textile, paper, and wood industries. It is particularly effective in the bleaching of pulp and textiles, where it removes unwanted colouration without damaging the material.

Chemical Synthesis
An important reducing agent in chemical synthesis. It is used in the production of various chemicals, including dyes and other organic compounds. It is also used in redox reactions and in the reduction of certain metals.

Photography
In photographic developing and processing solutions. It acts as a preservative and stabilising agent, helping to prevent the oxidation of developer chemicals and ensuring high-quality prints and photographs.

Laboratory Reagent
Various analytical and synthesis applications. It is often employed in redox titrations and as a reducing agent in organic synthesis, especially in the preparation of compounds where reducing conditions are required

• Disinfectant
• Antioxidant
• Preservative Agent
• Photography
• Removal of Tree Stumps

Minimum Assay: >95% (as Na2S2O5)
Assay as SO2: >64%
Molecular Formula: Na2O5S2
Molecular Weight: 190.10
Melting Point: >300 deg C
pH (10% Sol): 4.0- 5.5
Arsenic (As): <3mg/Kg
Iron (Fe): <30mg/Kg
Mercury (Hg): <1mg/Kg
Lead (Pb): <5mg/Kg
Selenium (Se): <6mg/Kg
Heavy Metals (as Pb): <10mg/Kg

Certified Food Grade
Conforms to Commission Directive 2008/84/EC (E223)

Cas Number: 7681-57-4

Einecs Number: 231-673-0

HS Code / Commodity Code: 3822900000

Hazard Phrases: H318,H302,EUH031

Prec Phrases: P280,P301+P312+P330,P305+P351+P338+P310