Sodium Metabisulfite Product Details

Product Introduction

Sodium Metabisulfite is a white crystalline powder or granules with strong sulfur dioxide odor. Our product with purity ≥97% is widely used in food preservation, water treatment, textile bleaching, etc., serving as an efficient and economical reducing agent and preservative.

Specifications

• Chemical Name: Sodium Metabisulfite

• CAS No.: 7681-57-4

• Molecular Formula: Na₂S₂O₅

• Molecular Weight: 190.10

• Purity: ≥97%

• SO₂ Content: ≥65%

• Water Insolubles: ≤0.05%

• Iron Content: ≤0.005%

Product Grades

• Food Grade: Complies with GB1886.44-2016

• Industrial Grade: High purity for industrial use

• Pharmaceutical Grade: Meets USP standard

Packaging

• 25kg/bag (PE-lined woven bag)

• 50kg/drum (plastic sealed drum)

• 1000kg/jumbo bag (moisture-proof)

Key Advantages

✓ High purity (≥97%)
✓ Fast dissolution
✓ Strong reducing property
✓ Multiple specifications available
✓ Complies with international standards

Main Applications

1. Food Industry

• Wine preservative

• Dried fruit bleaching

• Seafood antioxidant

2. Water Treatment

• Drinking water disinfection

• Wastewater dechlorination

• Circulating water system sterilization

3. Textile Industry

• Fabric bleaching agent

• Dyeing reducing agent

• Deoxidizer

4. Other Fields

• Photographic developer

• Rubber antioxidant

• Chemical synthesis reducing agent

Certifications

• Food Grade: GB1886.44-2016

• Pharmaceutical Grade: USP/EP

• Industrial Grade: ISO9001

Safety Information

• Hazard Class: Class 8 Corrosive

• UN Number: UN2693

• Storage: Cool dry place, sealed

• Shelf Life: 12 months

Why Choose Us?

✅ High-purity products, in compliance with international standards
✅ 30+ Years Chemical Manufacturing Experience
✅ Strict QC with Batch Traceability
✅ Global logistics, supporting sea and air transportation
✅ Technical support, providing customized solutions
✅ Factory direct supply, with strong price competitiveness