Description

Sodium Dithionite is a powerful reducing agent widely utilized across multiple industries. Its core value lies in its ability to efficiently remove oxygen and reduce various compounds, making it indispensable for processes requiring controlled chemical reduction. This product is essential for manufacturers in the textile, paper, and water treatment sectors, where consistent quality and reliable performance are critical for operational success.

Application

• Textile Industry: Key reducing agent in vat dyeing and printing processes for cotton and other cellulose fibers.
• Pulp & Paper Manufacturing: Used as a bleaching agent for mechanical pulp and as a brightening agent.
• Water Treatment: Effective for the reduction and removal of heavy metals like chromium and for dechlorination.
• Chemical Synthesis: Serves as a reducing agent in various organic synthesis and polymerization reactions.
• Food Industry: Employed in specific food processing applications, such as the bleaching of certain food-grade products.
• Clay & Mineral Processing: Used to improve the brightness and quality of kaolin clay.
• Gas Purification: Applied in scrubbing processes to remove oxygen from inert gases.
• Leather Processing: Assists in the bleaching and conditioning of leather hides.

Basic Information

Product Name	Sodium Dithionite
CAS No.	7775-14-6
Molecular Formula	Na2S2O4
Molecular Weight	174.11 g/mol
Synonyms	Sodium Hydrosulfite; Hydrosulfite; Dithionous Acid, Disodium Salt; Sodium Sulfoxylate; Blankit; Vatrolite; Albite A; Reductone
EINECS	231-890-0

Quality Control

Our Sodium Dithionite is manufactured under stringent quality management systems to ensure batch-to-batch consistency and reliability. We provide comprehensive quality assurance, with product specifications meeting relevant industrial and commercial standards. A Certificate of Analysis (COA) detailing purity, assay, and key impurity levels is available for every batch upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place away from heat, sparks, and open flame. Due to its hygroscopic (moisture-sensitive) and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen) and minimize exposure to air and moisture. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Assay (Na2S2O4)	Min. 88%
Iron (Fe)	Max. 20 ppm
Heavy Metals (as Pb)	Max. 10 ppm
Water Insolubles	Max. 0.1%
pH (1% Solution)	6.0 - 7.5

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.