Product Description
Sodium Metabisulfite (Na₂S₂O₅), also known as Sodium Disulfite, is a white to pale yellow crystalline powder widely used as a preservative, antioxidant, and reducing agent. It is highly soluble in water and extensively applied in food processing, pharmaceuticals, laboratories, and industrial applications.
In laboratories, Sodium Metabisulfite is commonly employed for preserving samples, acting as a reducing agent in chemical reactions, and dechlorinating water. Its stability, purity, and reliability make it essential for research, quality control, and industrial processes.

Key Features
- Chemical Name: Sodium Metabisulfite / Sodium Disulfite
• Chemical Formula: Na₂S₂O₅
• CAS Number: 7681-57-4
• Molecular Weight: 126.04 g/mol
• Appearance: White to pale yellow crystalline powder
• Purity: ≥98% (Analytical Reagent Grade)
• Solubility: Soluble in water; decomposes in acids
• Function: Preservative, antioxidant, reducing agent
• Stability: Stable under dry and cool conditions; sensitive to moisture
Applications
Laboratory & Research
• Acts as a reducing agent in chemical and analytical experiments.
• Used for preserving biological and chemical samples.
• Applied in dechlorination of water samples in analytical testing.
• Useful in research laboratories for redox reactions and antioxidant studies.
Industrial Uses
• Widely used in food and beverage industries as a preservative and antioxidant.
• Applied in pharmaceuticals for stabilizing formulations.
• Employed in textile and leather industries for bleaching and dechlorination.
• Used in water treatment for removing excess chlorine and other oxidizing agents.
Safety & Handling
- Hazard: May cause irritation to skin, eyes, and respiratory tract; harmful if ingested.
• Precautions: Handle with gloves, goggles, and protective clothing in a well-ventilated area.
• Storage: Store in a tightly sealed container in a cool, dry place, away from moisture and strong oxidizers.
• Disposal: Dispose of according to local laboratory and environmental safety regulations.
Price in Bangladesh
Available in 100 g, 250 g, 500 g, and 1 kg packs at competitive prices.
Bulk supply options available for laboratories, food industries, and chemical manufacturers.
Why Choose Sodium Metabisulfite from M/S Bright Scientific Co.?
- High-purity Analytical Reagent (AR) Grade ensuring reliable performance.
• Tested and Verified for stability, purity, and reducing properties.
• Trusted supplier for academic, industrial, and research laboratories.
• Secure Packaging to prevent contamination and moisture exposure.
• Competitive Pricing with bulk supply options.
• Nationwide Delivery across Bangladesh – fast, safe, and dependable.
Contact Information
M/S Bright Scientific Co.
📞 Phone: 01711285976







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