Ar Sodium Sulphite
Analytical Reducing
Analytical Reagent

AR Grade Sodium Sulphite (Na₂SO₃)

Analytical Reagent grade sodium sulphite manufactured for analytical chemistry, reducing reactions, and preservation studies. Our AR grade Na₂SO₃ provides reliable reducing properties for research applications, analytical procedures, and precise sulfur chemistry experiments.

  • Analytical Grade Purity
  • Strong Reducing Properties
  • Preservation Applications
  • Research Laboratory Use
  • Analytical Chemistry Applications
  • Antioxidant Properties
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Technical Specifications

Chemical Name: Sodium Sulphite
Chemical Formula: Na₂SO₃
CAS Number: 7757-83-7
EINECS Number: 231-821-4
Molecular Weight: 126.04 g/mol
Purity: ≥98.0% (AR Grade)
Physical State: White crystalline powder
Melting Point: 500°C (decomposes)
Solubility (20°C): 27 g/100ml water
pH (5% solution): 9.0 - 10.5
Chloride (Cl): ≤0.01%
Heavy Metals: ≤20 ppm
Storage Temperature: 15-30°C, dry place
Packaging: 250g, 500g, 1kg, 2.5kg bottles

Applications

Reducing Agent
Antioxidant
Analytical Chemistry
Titrimetric Analysis
Chemical Preservation
Food Preservation
Educational Laboratories
Industrial Processing
Research Applications
Pharmaceutical Testing
Biochemical Assays
Redox Reactions

Industry-Specific Grades

DRAVYOM offers specialized sodium sulphite grades tailored for specific analytical and industrial requirements, ensuring optimal performance and regulatory compliance across diverse laboratory applications.

AR Grade (Analytical Reagent)
Purity: ≥98.0% Chloride: ≤0.01% pH: 9.0-10.5 Application: General analytical procedures
High Purity Grade
Purity: ≥99.0% Heavy Metals: <10 ppm Low Moisture Content Application: Precision analysis
Food Grade
FDA/EU Approved Antioxidant Properties E221 Compliant Application: Food preservation
Technical Grade
Industrial Applications Cost-effective Bulk Quantities Application: Manufacturing

Quality Standards

DRAVYOM's AR Grade Sodium Sulphite is manufactured under stringent quality control protocols, meeting international analytical standards including ACS, USP, EP, and pharmacopoeia specifications. Our analytical-grade production ensures consistent performance and regulatory compliance.

ISO 9001:2015 Certified Manufacturing
ACS Reagent Grade Specifications
≥98.0% Purity Guarantee
Reducing Power Validation
Superior Antioxidant Properties
Batch-to-Batch Consistency
Traceable Certificate of Analysis
Moisture-Protected Logistics

Advanced Chemical Properties & Performance

AR Grade Sodium Sulphite exhibits exceptional chemical properties essential for reduction and antioxidant applications. Its ultra-pure composition and precise formulation ensure reliable performance in demanding analytical procedures and research applications.

Analytical Properties
Reducing Potential: -0.93 V (vs. SHE)
Electron Equivalents: 2e⁻ per SO₃²⁻
Purity (Assay): ≥98.0%
pH (1% solution): 9.0-10.5
Physical Properties
Appearance: White crystalline powder
Melting Point: Decomposes at 150°C
Density: 1.48 g/cm³
Solubility (H₂O): 24.4 g/100mL (20°C)
Analytical Performance
Oxygen Scavenging: Complete removal
Dechlorination Rate: Instantaneous
Precision (RSD): ≤ 0.2%
Reducing Efficiency: 99.5%+ complete
Purity Specifications
Sodium Sulphite: ≥98.0%
Sulfate (SO₄²⁻): ≤0.5%
Chloride (Cl⁻): ≤0.01%
Heavy Metals: ≤0.001%
Stability Properties
Shelf Life: 3 years (unopened)
Air Sensitivity: Slowly oxidizes to sulfate
Temperature Stability: Stable up to 150°C
Hygroscopicity: Slightly hygroscopic

Performance Characteristics

Detailed performance metrics demonstrate AR Grade Sodium Sulphite superiority in reduction applications with exceptional antioxidant capability, reliability, and reproducibility across diverse analytical procedures and testing protocols.

Reducing Power

Strong reducing potential: -0.93 V

Excellent antioxidant properties
Oxygen Scavenging

Complete oxygen removal

Effective deoxygenation
Dechlorination

Instantaneous chlorine neutralization

Rapid chlorine removal
Thermal Stability

Stable up to 150°C

Moderate temperature applications
Batch Consistency

Variation: ≤ 0.2% between batches

Exceptional lot-to-lot uniformity
Analytical Accuracy

Reducing efficiency: 99.5%+

Quantitative analytical results

Safety Information

Reducing agent that may cause irritation to skin, eyes, and respiratory tract. Handle with appropriate protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Avoid contact with acids and oxidizing agents. Ensure adequate ventilation and emergency procedures are in place.

Irritant
Respiratory Irritant
Eye Irritant

Storage & Handling

Store in original containers in a cool, dry place away from acids and oxidizing agents. Keep containers tightly closed and protect from air exposure to prevent oxidation. Use in well-ventilated areas and ensure proper handling procedures for reducing agent safety.

Cool, dry storage
Protect from air exposure
Original containers only
Well-ventilated area

Chemical Mechanisms & Reaction Pathways

Sodium sulphite demonstrates strong reducing properties through sulfur oxidation mechanisms, enabling effective oxygen scavenging and analytical reductions with precise electron transfer reactions.

Reduction Reactions

SO₃²⁻ oxidation to SO₄²⁻ provides reducing capacity for analytical applications

Strong reducing agent for dechlorination and oxygen removal
Oxygen Scavenging

Rapid reaction with dissolved oxygen prevents oxidation in sensitive systems

Antioxidant protection and preservation
Dechlorination

Neutralizes free chlorine in water treatment and analytical applications

Chlorine removal and water conditioning
pH Buffering

Weak base properties provide buffering capacity in aqueous solutions

Solution pH stabilization

Regulatory Compliance & Documentation

Comprehensive regulatory compliance ensures global laboratory access with complete documentation packages supporting international analytical standards and reduction method validations.

ACS Specifications

American Chemical Society analytical reagent standards compliance

ISO 3696 Standard

International standard for analytical grade reagent specifications

Food Grade Available

Food-grade specifications for food preservation applications

REACH Registration

European Union chemical regulation compliance

EPA Guidelines

Environmental Protection Agency water treatment protocols

SDS Documentation

Multi-language Safety Data Sheets (16 sections, GHS compliant)

Technical Support & Value-Added Services

DRAVYOM's analytical chemistry team provides comprehensive reduction method support, troubleshooting assistance, and analytical services to optimize sodium sulphite performance in your specific applications.

Reduction Development
  • Reduction protocol optimization
  • Oxygen scavenging procedures
  • Dechlorination methods
  • Antioxidant applications
Analytical Services
  • Purity verification analysis
  • Reducing capacity testing
  • Sulfite content validation
  • Method validation support
Technical Support
  • Reduction troubleshooting
  • Safe handling and storage training
  • Laboratory protocol development
  • Quality control guidance
Supply Solutions
  • Consistent reagent quality batching
  • Emergency supply arrangements
  • Custom grade specifications
  • Moisture-controlled distribution

Environmental Impact & Sustainability

Our sodium sulphite production emphasizes environmental responsibility through sustainable manufacturing practices, sulfur recovery systems, and comprehensive environmental impact management for analytical operations.

Sulfur Recovery

Advanced sulfur compound recovery and recycling systems

Water Treatment

Effective dechlorination for water conditioning applications

Clean Production

Sulfur dioxide capture and conversion to useful products

Safe Disposal

Environmentally safe oxidation and disposal protocols

ISO 14001

Environmental management system certified production

Antioxidant Benefits

Reduces oxidative stress in environmental applications

Manufacturing Excellence & Quality Control

DRAVYOM's state-of-the-art chemical manufacturing facility employs advanced synthesis technology with continuous monitoring systems to ensure consistent sodium sulphite quality and performance across all production batches.

Production Process

Controlled sulfur dioxide absorption with high-purity sodium carbonate solutions

Maximum purity and reducing activity
Quality Testing

Comprehensive analysis including purity, reducing capacity, and moisture content

Iodometric and gravimetric verification
Quality Systems

ISO 9001:2015 quality management with analytical laboratory accreditation

Continuous improvement and method validation
Packaging Control

Oxygen-barrier containers with antioxidant protection and stability preservation

Chemical stability and contamination prevention

Market Applications & Performance Data

Comprehensive analytical laboratory data demonstrating sodium sulphite effectiveness across diverse applications with quantified performance metrics and reduction method validations.

Reduction Applications
Purity: 97%+ Na₂SO₃ content Reducing Power: Complete oxygen scavenging Efficiency: Rapid dechlorination
Educational Institutions
Curriculum Support: 80+ analytical protocols Reproducibility: >98% consistent results Safety: Moderate toxicity profile
Water Treatment
Reliability: 99.8% batch consistency Efficiency: Immediate chlorine neutralization Versatility: Multiple treatment applications

DRAVYOM Competitive Advantages

Superior Reducing Power

Consistently high-purity sodium sulphite with maximum reducing capacity for effective oxygen scavenging and dechlorination

Reliable Supply

Guaranteed availability with strategic inventory management and specialized production scheduling

Analytical Expertise

Dedicated analytical chemistry team provides reduction method development and antioxidant support

Quality Assurance

Traceable certificates with comprehensive purity validation and analytical method support

Global Standards

International compliance with ACS, food grade, and analytical specifications for worldwide acceptance

Partnership Approach

Collaborative relationships with water treatment facilities and custom reduction method development services