A white crystalline powder that works quietly behind the scenes across food processing, water treatment, mining, and pharmaceutical manufacturing — sodium metabisulfite is one of the most versatile preservation and reducing agents sourced today.
Sodium metabisulfite (sometimes called sodium pyrosulfite) releases sulfur dioxide when it dissolves, which is what gives it its antioxidant and antimicrobial power. That single property makes it valuable everywhere oxidation, browning, or microbial growth needs to be controlled — from a winery to a municipal water plant.
RJR Worldwide sources this product from ISO 9001 and FSSC 22000-certified facilities in China and India, with supply meeting both FCC (Food Chemicals Codex) and EP (European Pharmacopoeia) standards. Whether you need a food-grade lot for beverage production or a technical grade for water treatment, we match the supply chain to the grade.
Primary Uses
Preservation
Antioxidant and antimicrobial agent in food, beverage, and pharmaceutical production.
Dechlorination
Neutralizes residual chlorine in water and wastewater treatment processes.
Bleaching
Reducing agent in textile, paper, and industrial bleaching applications.
Mining
Used in ore processing and as a flotation reagent in mineral recovery.
Grades & Compliance
Available in food, technical, and pharmaceutical grades. Food grade carries the E223 designation in the EU and meets FCC in the US; pharmaceutical grade conforms to USP and EP monographs. We supply against your specification standard — US, European, or dual-compliant.
- Food grade: FCC · E223 — beverage, dried fruit, seafood, and winemaking
- Technical grade: water treatment, textile, photographic, and mining
- Pharma grade: USP · EP — formulation antioxidant and excipient
Sourcing & Packaging
Sourced primarily from China with redundant supply from India. Standard packaging is 25 kg bags, 1000 kg IBC totes, or bulk — with custom configurations available for new partners, including trial lots for qualification.
Technical Specifications
Every lot is supplied with a Certificate of Analysis and Safety Data Sheet matching the specification standard you require. Representative specifications:
Documentation on request
SDS, COA, country-of-origin letters, and certifications — Kosher, Halal, Non-GMO, NSF, ISO — are prepared per shipment. We assemble regulatory packages for FDA and EU submissions when needed.
Request pricing, a sample, or the full SDS for Sodium Metabisulfite
Multi-year supply with index-linked pricing. A member of our sourcing team responds within one business day.