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Sodium Hydrosulfite CAS 7775-14-6 Powder Granular

Sodium Hydrosulfite, also widely known as Sodium Dithionite, is a high-efficiency reducing agent commonly supplied in powder and granular forms. The product features stable chemical properties and excellent reducing and bleaching performance, serving as a core chemical material for multiple industrial fields. Its molecular formula is Na₂S₂O₄, and it is identified by CAS 7775-14-6 in global chemical industry standards.

Product Aliases

This industrial chemical has multiple universal aliases in global trade and industrial applications, including Sodium Dithionite, Sodium Hydrosulphite, Disodium Dithionite, and Low Sodium Sulfite. It is commercially famous as Bleaching Powder in the textile and papermaking industry, covering mainstream naming standards for international procurement and chemical database inquiries.

Product Physical Properties & Traits

Sodium Hydrosulfite presents white to off-white crystalline powder or granular appearance with a slight special sulfur dioxide odor. The product is easily soluble in water to form a transparent solution, while insoluble in ethanol and most organic solvents. It has strong reducibility and is prone to gradual oxidation and decomposition when exposed to humid air. The melting point exceeds 300℃ with thermal decomposition, and it maintains stable performance under sealed and dry storage conditions, meeting long-distance international transportation and bulk storage requirements.

Typical Product Specifications

Below are the most mainstream industrial-grade technical indicators of Sodium Hydrosulfite, which comply with international industrial production and export standards:

Product Applications

Sodium Hydrosulfite is a versatile industrial reducing and bleaching chemical with wide application scenarios across global industries. In the textile industry, it is mainly used for reducing dyeing, fabric bleaching, color fixing and cleaning of cotton, linen, silk and chemical fiber products, effectively improving fabric color uniformity and brightness. In the papermaking industry, it serves as a bleaching agent for pulp to enhance paper whiteness and quality stability. Additionally, the product is widely applied in food processing for food raw material bleaching, wastewater treatment for reduction and decolorization, and chemical industry for raw material synthesis and impurity removal. With high purity and stable performance, it fully meets the quality requirements of downstream industrial production.

Product Certification & Document Support

This Sodium Hydrosulfite has completed REACH registration to comply with EU chemical import and sales regulations, supporting smooth customs clearance and market circulation in European and global markets. Professional MSDS download service is available for buyers, providing complete chemical safety data, transportation specifications and risk operation guidelines to guarantee standardized product use and safe transportation.

FAQ

1. What are the common physical forms of Sodium Hydrosulfite for export?

The mainstream export specifications of Sodium Hydrosulfite are powder and granular. The powder type features fast dissolution speed suitable for rapid industrial reaction scenarios, while the granular type has better anti-caking performance and longer storage cycle, meeting different production and storage demands of global buyers.

2. What international certifications does Sodium Hydrosulfite hold for global trading?

The product has passedREACH registration applicable to the EU market, and complete MSDS download resources are provided. All product indicators conform to international industrial standards, which can satisfy the import inspection and market access

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