Sodium Sulfite

Description

1. Product Overview

Sodium Sulfite is an inorganic compound widely used as a reducing agent and preservative across multiple industrial sectors. It is primarily employed for water treatment, pulp and paper processing, and chemical manufacturing applications, where it prevents oxidation and stabilizes products. The key value proposition lies in its effectiveness in controlling oxidative reactions, enhancing product longevity, and ensuring process efficiency. Strategically, sodium sulfite plays a critical role in industrial operations that require corrosion control, bleaching support, or chemical stabilization, making it an essential component for maintaining operational consistency. Its reliable performance underpins cost-efficient, high-quality manufacturing outcomes.

2. Key Specifications & Technical Characteristics

• Chemical Composition:
  • Na₂SO₃ (Sodium Sulfite)
  • May contain minor additives or anti-caking agents depending on batch
• Purity Level / Grade:
  • Industrial grade
  • Purity: Typically ≥ 98%
  • Batch Certificate of Analysis available
• Physical Characteristics:
  • Solid, granular or crystalline form
  • Color: White
  • Particle size: 1–5 mm typical
  • Density: ~2.6 g/cm³
  • Hygroscopic; store in dry conditions
• Packaging Options:
  • Bulk bags (25–50 kg)
  • Jumbo bags / FIBC
  • Tanker delivery for large-scale applications
• Shelf Life:
  • Stable under dry, sealed storage conditions
  • Recommended storage away from moisture and heat
  • Typical shelf life: 12–24 months depending on storage

3. Core Industrial Applications

Primary Industries:

• Pulp and paper manufacturing
• Water treatment and boiler feed systems
• Textile and dyeing operations
• Chemical and pharmaceutical production
• Food processing (as preservative in approved applications)

Operational Use Cases:

• Dechlorination of water streams in municipal and industrial water treatment
• Sulfite pulping and bleaching in paper production
• Reducing agent in chemical manufacturing reactions
• Preservation and stabilization of food and beverage products
• Antioxidant in certain chemical formulations

Performance & Cost Advantages:
Sodium sulfite delivers high efficiency in controlling oxidation, reducing chemical wastage, and improving process stability. Compared to alternatives, it offers consistent reactivity, cost-effectiveness, and operational reliability, particularly in high-volume industrial applications.

4. Competitive Advantages

• Quality Consistency: Certified industrial-grade batches with COA verification
• Supply Reliability: Continuous production and availability for bulk orders
• Logistics Capability: Compatible with bulk transport and containerized shipment
• Price Competitiveness: Cost-efficient sourcing relative to competing antioxidants and reducing agents
• Sustainability Benefits: Supports reduced chemical wastage and process optimization
• Technical Support: Documentation, SDS, handling guidelines, and regulatory compliance support provided

Sodium Sulfite is positioned as a strategic sourcing decision for industrial buyers seeking high-quality, cost-effective, and reliable reducing and stabilizing agents for diverse operational requirements.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20MT
• Loading Capacity (MT per container): Approximately 20–22 MT per 20’ container, subject to density and packaging configuration