Description
Sodium Bisulphite for Industrial, Food & Specialty Applications
Sodium Bisulphite is a reliable sulphur-based chemical compound known for its excellent reducing, oxygen-scavenging, bleaching, preservative, and dechlorination properties. It is widely used across food & beverage, water treatment, textile, pulp & paper, photography, oilfield, chemical processing, and industrial sectors.
This product is available in both powder and liquid solution forms to meet different application needs. Powder grades are suitable for dry chemical handling, food preservation, textile processing, photographic applications, and industrial use, while liquid grades are ideal for easy dosing, quick mixing, and direct process application in water treatment, oilfield, pulp & paper, and chemical production.
Sodium Bisulphite helps remove dissolved oxygen, prevent oxidation, support bleaching processes, control chlorine, improve process stability, and preserve product quality. Its strong performance and flexible grade options make it a dependable chemical for domestic and export requirements.
Available Grades
Sodium Bisulphite Powder Pure Grade
Sodium Bisulphite Powder Pure Grade is a white free-flowing powder used in water treatment, food preservation, textile processing, photography, and chemical applications. It offers reliable reducing performance, good solubility, and consistent product quality.
Grade Details – Powder Pure Grade
Physical Appearance: White free-flowing powder
Assay as NaHSO₃: Min. 98%
Assay SO₂: Min. 62%
pH of 10% Solution: 3.80 – 4.80
Solubility (10% Aqueous Solution): Clear solution
Sodium Bisulphite Powder Extra Pure Grade
Sodium Bisulphite Powder Extra Pure Grade is specially developed for applications that require higher purity and controlled impurity levels. It is suitable for analytical, pharmaceutical, high-precision industrial, and specialty chemical applications where consistent results are important.
Grade Details – Powder Extra Pure Grade
Physical Appearance: White free-flowing powder
Assay as NaHSO₃: Min. 98%
SO₂ Content: Min. 60%
pH of 10% Solution: 3.80 – 4.80
Solubility (10% Aqueous Solution): Clear solution
Chloride (Cl): Max. 0.1%
Iron (Fe): Max. 0.01%
Lead (Pb): Max. 0.001%
Sodium Bisulphite Powder Food Grade
Sodium Bisulphite Powder Food Grade is used in food and beverage applications as a preservative and antioxidant. It helps prevent browning, spoilage, and oxidation in selected food products while supporting freshness, stability, and product quality.
Grade Details – Powder Food Grade
Physical Appearance: White free-flowing powder
Assay as NaHSO₃: Min. 98%
Assay SO₂: Min. 62%
pH of 10% Solution: 3.80 – 4.80
Solubility (10% Aqueous Solution): Clear solution
Sodium Bisulphite Solution 30%
Sodium Bisulphite Solution 30% is a clear pale yellow liquid solution used for industrial, water treatment, food processing, dechlorination, and oxygen scavenging applications. Its liquid form allows easy handling, fast mixing, and direct dosing in process systems.
Grade Details – Solution 30%
Appearance: Clear pale yellow solution having pungent odor
Assay as NaHSO₃: 30–33%
Specific Gravity @ 25°C: 1.320 – 1.360
pH: 3.80 – 4.80
Flash Point: >60°C
Pour Point: Less than 0°C
Sodium Bisulphite Solution Catalysed
Sodium Bisulphite Solution Catalysed is a high-performance liquid solution designed for demanding industrial applications. It is enhanced with catalyst support to improve reaction efficiency and is commonly used in boiler feedwater treatment, chemical processing, and industrial systems where faster oxygen scavenging is required.
Grade Details – Solution Catalysed
Appearance: Slightly yellowish to reddish color clear solution
Assay as NaHSO₃: 38%
Specific Gravity @ 25°C: 1.320 – 1.360
pH: 3.80 – 4.80
Flash Point: >60°C
Pour Point: Less than 0°C
Solubility: Completely soluble in water
Applications
Food & Beverage Preservation
Used as a preservative and antioxidant in selected food and beverage applications to help maintain freshness, prevent oxidation, and extend shelf life.
Water Treatment
Works as an oxygen scavenger and dechlorination agent to remove dissolved oxygen and excess chlorine from water systems.
Textile Processing
Used as a bleaching and reducing agent in textile treatment and fabric processing applications.
Pulp & Paper Industry
Supports bleaching, pulp processing, and chlorine reduction in paper manufacturing applications.
Photography & Film Processing
Used in photographic chemicals and film processing to support image clarity and chemical stability.
Oilfield Applications
Used in oilfield and drilling-related applications where oxygen control and process stability are required.
Chemical Processing
Used as a reducing agent in chemical manufacturing, dye production, leather processing, and other industrial applications.
Key Benefits
Available in Powder & Liquid Grades
Suitable for different handling, storage, dosing, and processing requirements.
Excellent Oxygen Scavenger
Helps remove dissolved oxygen and supports corrosion control in water-based systems.
Effective Dechlorination Agent
Supports removal of excess chlorine in water treatment and industrial processes.
Strong Reducing Properties
Useful in bleaching, oxidation control, chemical synthesis, and process stabilization.
Food & Industrial Grade Options
Available for food preservation, industrial processing, and high-purity application needs.
Easy Handling & Good Solubility
Powder grades dissolve well in water, while liquid grades allow direct and convenient application.
Consistent Quality
Manufactured and supplied with focus on purity, stability, performance, and dependable results.
Why Choose Sodium Bisulphite?
Sodium Bisulphite is preferred by industries because of its wide application range, strong reducing performance, and availability in multiple grades. Whether used as a preservative, oxygen scavenger, bleaching agent, dechlorination agent, or process chemical, it delivers reliable results across food, textile, water treatment, pulp & paper, oilfield, photography, and industrial applications.
With powder and liquid solution options, Sodium Bisulphite provides flexibility for different process requirements while ensuring quality, solubility, and dependable performance.
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