Description

Sodium hydrosulfite, also known as sodium dithionite, with the chemical formula Na₂S₂O₄, is one of the widely used chemicals across various industries. It is known as a strong reducing agent playing a vital role in many industrial processes, especially in the textile, paper, detergent, and mining industries.

In this article from Sepidestan Tejarat’s website, we provide an in-depth overview of its properties, applications, trusted Chinese brands, global market status, and important tips when buying and selling sodium hydrosulfite.

Purchase Sodium Hydrosulfite

If you intend to buy high-quality sodium hydrosulfite at a reasonable price, Sepidestan Tejarat is a reliable and professional choice. With years of experience supplying chemical raw materials, we offer well-known global brands directly without intermediaries.

Why Buy from Sepidestan Tejarat?

• Supply from reputable Chinese brands
• Guarantee of product authenticity and purity
• Provision of valid technical analysis (COA)
• Expert consultation for selecting the right product

Sodium Hydrosulfite Sales in Sealed Packaging

At Sepidestan Tejarat, sodium hydrosulfite is offered in industrial sealed packaging according to customer needs. Product quality and full support until delivery are among our priorities.

Price of Sodium Hydrosulfite | Factors Affecting Market Rates

The price depends on several key factors including:

• Manufacturer brand (German, Chinese, Indian)
• Purity percentage and physical quality
• Global market fluctuations and exchange rates
• Order volume and packaging type

For the latest price updates, please contact our sales experts. Prices are updated daily.

Trusted Brands: Chinese and German

We supply sodium hydrosulfite from well-recognized Chinese brands:

Both types are available with precise technical analysis, and depending on application, our technical team will recommend the best product.

What is Sodium Hydrosulfite?

Sodium hydrosulfite is a white powder with a distinctive sulfur smell, stable at room temperature but decomposable by moisture and heat. It is soluble in water and rapidly absorbs dissolved oxygen, making it a strong reducing agent in many chemical processes.

Applications of Sodium Hydrosulfite

1. Textile Industry

   This is one of the main and broadest applications where it serves as a reducing agent and bleaching chemical. It helps remove unwanted colors or residues from natural fibers like cotton and wool as well as synthetic fibers. It also plays a key role in restoring colors of used or defective fabrics, helping reduce production waste.

   Additionally, in dyeing with vat dyes (e.g., indigo), it is used to reduce the dye and enhance penetration to fibers, resulting in uniform coloration, higher brightness, and better fabric quality.

2. Paper Industry

   Sodium hydrosulfite is used in pulp bleaching to remove lignin color and whiten paper pulp. It reduces the need for other more hazardous chemicals, making production more environmentally friendly.

3. Chemical and Pharmaceutical Production

   Used as a reducing agent in the synthesis of various chemical intermediates and pharmaceutical compounds.

4. Water and Industrial Wastewater Treatment

   Due to its strong reducing properties, it is employed to remove heavy metals and other contaminants from industrial wastewater.

5. Mining and Flotation

   Acts as an auxiliary agent controlling oxidation conditions and enhancing separation efficiency in some metal extraction processes.

Detailed Application in Textile Industry

Sodium hydrosulfite is recognized as one of the most effective bleaching and reducing agents. Its strong reducing power can remove natural and synthetic colors from fibers like cotton, wool, and viscose. It is widely used in bleaching, whitening, and fabric preparation for re-dyeing. Use of this compound not only improves final product quality but also preserves fiber texture and strength.

In denim and modern apparel production, it creates special effects such as selective fading and vintage designs. It also effectively corrects defective colors and evens out coloration in fabrics where inconsistencies occurred during processing. Its fast reaction, lack of toxic vapors, and ability to work at low temperatures are main advantages in textile plants.

Global Market for Sodium Hydrosulfite

The global market for sodium hydrosulfite has grown significantly in recent years. China is the largest producer and exporter worldwide, while Germany is a leading country producing high-purity grades meeting EU standards.

In the Middle East, Iran is an active consumer market for this chemical in various industries. Given changes in the global supply chain, access to a reliable supplier has become increasingly critical.

Important Points When Buying Sodium Hydrosulfite

Why Sepidestan Tejarat?

Sepidestan Tejarat, leveraging an expert team and international supply network, is ready to cooperate with various industries to supply chemicals including sodium hydrosulfite. Our goal is to provide top quality, precise consultation, and full support.

Frequently Asked Questions About Sodium Hydrosulfite

1. What are the main applications of sodium hydrosulfite?

   It is used as a reducing and bleaching agent in many industries including textile bleaching and decolorizing, dyeing processes, printing, intermediate chemical production, and stain or contaminant removal in industrial operations.

2. What kinds of sodium hydrosulfite does Sepidestan supply?

   Sepidestan offers standard quality, imported sodium hydrosulfite from China. Due to stable quality, proper packaging, and continuous supply, it is a preferred choice for industrial consumers.

3. Where can we purchase sodium hydrosulfite?

   It can be sourced from reputable industrial chemical suppliers and traders. Companies like Sepidestan Tejarat provide products with official certificates, bulk purchasing options, and fast delivery to various industries. Always verify certification and product purity when buying.