Sodium Metabisulfite - High Purity Chemical by Hongjian Chemical

Product Overview

Sodium metabisulfite from Hongjian Chemical is a premium quality inorganic compound with the chemical formula Na₂S₂O₅. This white crystalline powder serves as versatile reducing agent and preservative across multiple industries. Our manufacturing process ensures exceptional purity and consistent particle size distribution for optimal performance in various applications.

Technical Specifications

• Chemical Formula: Na₂S₂O₅

• CAS Number: 7681-57-4

• Appearance: White to yellowish crystalline powder

• Purity: ≥97.0%

• SO₂ Content: ≥64.0%

• Iron (Fe) Content: ≤0.001%

• Water Insolubles: ≤0.05%

• pH (10% solution): 4.0-5.5

Applications

Food Industry: Approved food additive (E223) for preservation, antioxidant, and bleaching agent in beverages, dried fruits, and vegetable processing

Water Treatment: Effective dechlorination agent and oxygen scavenger in wastewater treatment and drinking water purification

Photography: Developing agent and fixer component in photographic solutions

Textile Industry: Chlorine neutralizer and bleaching auxiliary in textile processing

Pharmaceuticals: Intermediate in drug synthesis and purification processes

Packaging & Storage

Available in 25kg polywoven bags with PE inner lining. Store in cool, dry, well-ventilated areas away from moisture and heat sources. Keep containers tightly closed when not in use.

Why Choose Hongjian Chemical?

• ISO-certified manufacturing facilities

• Strict quality control protocols

• Customized particle size available

• Technical support provided

• Reliable global shipping

Contact us today for pricing samples and technical documentation.

Note: This product should be handled by qualified personnel using appropriate safety equipment including gloves and eye protection. Avoid inhalation of dust and contact with skin.