Product Description
Sodium Metabisulfite | 22.7 Kg Bag – Premium Grade for Water Treatment, Preservation & Industrial UseOur Premium Sodium Metabisulfite (SMBS), supplied in a 22.7 kg (50 lb) bag, is a versatile, high-purity chemical widely used in water treatment, food preservation, wine-making, and industrial processes. With ≥97% purity, this fine crystalline powder delivers consistent, reliable performance as a dechlorination agent, antioxidant, and oxygen scavenger.In water treatment, SMBS is primarily used for chlorine removal and as a preservative for reverse osmosis (RO) membranes. It works by scavenging dissolved oxygen, helping prevent the growth of aerobic microorganisms during system shutdowns or storage. Please note: sodium metabisulfite is not a disinfectant and should not be used for cleaning membranes.Key Features: Reliable and Versatile Performance
High-Purity Composition – ≥97.0% Na₂S₂O₅, ensuring consistent effectiveness.
Dechlorination Agent – Removes free chlorine from potable and industrial water supplies.
RO Membrane Preservative – Scavenges oxygen to reduce microbial growth during downtime.
Food & Beverage Safe – Used in wine-making, juices, and food preservation.
Industrial Applications – Trusted in mining, textiles, leather, and paper industries.
Regulatory Compliance – Produced to meet strict industry standards.
Common Applications of Sodium Metabisulfite (SMBS)Water Treatment
Dechlorination of municipal and industrial water supplies
RO membrane preservation (not cleaning)
Food & BeveragePreservative and antioxidant in wine, juices, and food storageIndustrial & Commercial
Textiles: Reducing agent in dyeing
Mining: Flotation agent in ore processing
Leather: Bleaching and softening hides
Photographic Solutions: Preservative and antioxidant
Paper Industry: Bleaching and chemical processing aid
Technical Data: Sodium Metabisulfite (Na₂S₂O₅)
CAS Number: 7681-57-4
Formula: Na₂S₂O₅
Molecular Weight: 190.11 g/mol
Appearance: White to straw-colored fine grains
Purity: ≥97.0%
pH: 4.0 – 4.8
Related Products & Alternatives
Looking for tablet-based dechlorination? Check out [EnviroREDI Sodium Sulfite Dechlorination Tablets], a convenient and fast-acting option.
Prefer a Vitamin C–based solution? Explore [Vita-D-Chlor Dechlorination Tablets] for an environmentally friendly alternative.
Explore More Water Treatment Chemicals
Browse our full range of [Process Chemicals] including aluminum sulphate, sodium hypochlorite, and other essential treatment agents.
Explore our complete catalog of [Water Treatment Chemicals] for scaling and corrosion control, biological wastewater additives, membrane cleaners, and more.
Trusted Solution for Dechlorination and PreservationWhen you need a proven oxygen scavenger, dechlorination chemical, or preservative, Sodium Metabisulfite (SMBS) delivers reliable results across industries. From protecting RO membranes during downtime to removing chlorine in water systems or preserving food and beverages, SMBS is the cost-effective solution trusted by professionals worldwide.
