Product Overview

Sodium Bisulfite (NaHSO3) 40% Solution is an industrial-grade reducing agent engineered for water treatment and chemical processing applications. This technical formulation delivers reliable performance for dechlorination, bleaching, and waste treatment operations while maintaining consistent reducing power.

Key Properties

• Chemical Formula: NaHSO3
• Concentration: 40% w/w
• Specific Gravity: 1.36 at 20°C
• pH: 3.5 - 4.5
• SO2 Content: 24.0 - 25.5%
• Free Sulfur Dioxide: <0.1%
• Iron Content: <10 ppm
• Appearance: Clear to pale yellow liquid

Common Applications

• Water Treatment: Primary dechlorination agent for industrial and municipal water systems, effectively neutralizing chlorine and chloramines
• Pulp Processing: Essential reducing agent in pulp bleaching operations and paper manufacturing
• Textile Manufacturing: Critical bleaching compound for fabric processing and color removal applications
• Waste Treatment: Effective reducing agent for industrial wastewater treatment and heavy metal reduction
• Mining Operations: Process chemical for mineral extraction and metal ore processing

Safety Precautions

Requires careful handling due to reducing properties and SO2 evolution potential. Mandatory PPE includes chemical-resistant gloves, safety goggles, and protective clothing. Use in well-ventilated areas with proper containment systems. Store away from acids, oxidizers, and direct sunlight. Emergency eyewash stations and safety showers required in handling areas. Releases toxic sulfur dioxide gas when acidified.

Benefits

Our 40% sodium bisulfite solution provides consistent reducing power for industrial applications. Regular quality testing ensures reliable concentration and minimal iron contamination. The product maintains excellent stability during storage while delivering effective dechlorination and reduction results. Each lot undergoes verification of SO2 content and pH specifications.