Sodium Metabisulphite (SMBS, Technical Grade)
Sodium Metabisulphite (SMBS, Technical Grade)
A white-to-yellow crystalline powder (Na₂S₂O₅), sodium metabisulphite is a versatile chemical used as a reducing agent, dechlorinator, antioxidant, and preservative.
Overview
A white-to-yellow crystalline powder (Na₂S₂O₅), sodium metabisulphite is a versatile chemical used as a reducing agent, dechlorinator, antioxidant, and preservative.
Key Features & Benefits
1) High purity (96–98% Na₂S₂O₅): Ensures consistent reduction and preservation performance.
2) Multifunctional: Effective in dechlorination, oxygen scavenging, food preservation, textile bleaching, and gold beneficiation.
3) Low heavy-metal levels: Suitable for drinking water and food-grade applications where required.
Specifications & Packaging
Chemical Purity: ≥96% Na₂S₂O₅; SO₂ ≥64% by weight; moisture ≤2%
Form: White to pale-yellow powder; density ~1.48 g/cm³; melts ~150°C
Packaging: 25 kg polyethylene double bags, 50 kg HDPE sacks, or 1 MT jumbo bags
Applications
1) Water treatment: Dechlorinates wastewater and scours oxygen from boiler feed water
2) Food & beverage: Acts as preservative and antioxidant in dried fruits, wines, juices
3) Textiles & leather: Serves as bleaching agent, reducing agent, and tanning aid
4) Gold recovery: Detoxifies cyanide and precipitates gold in mining processes
Usage Note
Dissolve slowly in water; typical dosage varies by application—e.g., 5–10 ppm in water treatment, jar/field tests recommended.
Safety & Handling
Avoid inhaling dust; use gloves, goggles, and dust mask. Store in cool, dry, well-ventilated areas—products oxidize on exposure, reducing effectiveness.
Why ChemMin
1) Industrial-grade SMBS with high purity and consistent quality
2) Flexible packaging options to match operational scale
3) Technical support available for dose planning and application optimization