Sodium Metabisulfite

Sodium Metabisulfite (SMBS) - Food Grade & Industrial Grade

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Sodium Metabisulphite

  • CAS Number: 7681-57-4
  • EINECS NO.: 231-673-0
  • Molecular Formula: Na2S2O5
  • Main content (Na2S2O5): ≥96.5%
  • Appearance: White or slightly yellow crystalline powder, with a strong sulfur dioxide odor
  • Package: 25kgs/bag, or according to customer needs
  • Other Name: Sodium Metabisulfite; Sodium Pyrosulfite; SMBS
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Sodium Metabisulphite Specification

PRODUCT LIST

Sodium Metabisulphite for Sale

Sodium Metabisulfite is a versatile inorganic chemical widely used as an antioxidant, preservative, bleaching agent, and reducing agent. It is available in food grade and industrial grade specifications to meet different application needs.

Features & Benefits

  • High Solubility: Dissolves quickly in water for efficient dosing.

  • Consistent Potency: High SO2 (Sulphur Dioxide) release capacity.

  • Certified Quality: Meets ISO 9001 and food safety (HACCP/FCC) standards.

  • Stable Shelf Life: Packaged in moisture-proof 25kg or 1000kg bags to prevent caking.

Key Applications of Sodium Metabisulfite

  1. Water Treatment & RO Membrane Dechlorination
  • Function: Dechlorinating agent & disinfectant.
  • Details: Removes residual free chlorine from feed water prior to Reverse Osmosis (RO) filtration systems to protect sensitive polyamide RO membranes from oxidative damage.

2. Food & Beverage Industry (E223 Preservative)

  • Function: Antioxidant, preservative, and bleaching agent.
  • Details: Inhibits enzymatic browning in dried fruits, potatoes, and seafood; prevents bacterial growth in wine fermentation and food processing under strict FCC guidelines.

3. Mining & Mineral Processing (Gold Extraction)

  • Function: Cyanide destruction agent.
  • Details: Widely used in the INCO sulfur dioxide/air process for cyanide detoxification in gold mining tailing facilities, ensuring safe and eco-friendly waste discharge.

4. Textile, Leather & Paper Manufacturing

  • Function: Antichlor & bleaching agent.
  • Details: Acts as an antichlor agent after bleaching wool and jute; used as a reducing agent in dye houses and leather tanning processes.

FAQ of Sodium Metabisulphite

For standard specifications, we typically ship within 7-14 days after order confirmation. For custom packaging or high-volume contracts, the lead time is negotiated based on the production schedule.

Our standard MOQ is 1 metric ton (1,000 kg). For trial orders or sample evaluations, we can provide smaller packages upon request.

 

When stored properly in unopened, original moisture-proof bags under cool and dry conditions, the shelf life is 12 to 24 months.

Yes, we produce both high-purity Food Grade (compliant with E223 / FCC standards) and Industrial Grade for water treatment, mining, and textiles.

We conduct strict internal lab inspections (COA issued per batch) and can facilitate third-party pre-shipment inspection (SGS, Intertek, BV) according to client requirements.
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Sodium Metabisulphite Suppliers - HOO CHEMTEC

As a leading Sodium Metabisulphite manufacturer, we offer competitive bulk pricing, rigorous quality control, and global shipping logistics. Whether you need a single pallet or full container loads (FCL), we provide the documentation (COA, MSDS) required for seamless import.

  • Reliable Production Capacity: As a leading Na2S2O5 manufacturer, we operate advanced automated production lines with an annual output of 10,000 tons, ensuring a stable supply even during market fluctuations.

  • Superior Product Purity: Our Sodium Metabisulfite features lower impurity levels (Iron < 30ppm) compared to industry standards, reducing the risk of membrane scaling in RO systems and ensuring food safety.

  • Global Logistics Expertise: We offer flexible shipping options (FCL/LCL) and specialized packaging (UV-resistant and moisture-proof) to ensure the chemical properties remain stable during long-distance maritime transport.

  • Full Compliance & Certification: Hoochemtec is ISO 9001, HACCP, and Kosher/Halal certified. We provide a comprehensive documentation package, including COA, MSDS, and third-party inspection reports (SGS/BV) upon request.

  • Tailored Solutions: From ultra-pure photo-grade to industrial-grade granules, we can customize particle sizes and packaging (25kg, 500kg, or 1000kg jumbo bags) to fit your specific process requirements.

 

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