Sodium dithionite CAS# 7775-14-6

Sodium dithionite, Promotion Season Now in Store and Free Sample for Testing with Factory Price

• Chemical Name: Sodium dithionite
• CAS No.: 7775-14-6
• Molecular Fomula: Na2O4S2
• Molecular weight: 174.10700
• Appearance: White solid
• Sample: Available

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Description of blankit

Sodium dithionite (also known as sodium hydrosulfite) is a white crystalline powder with a weak sulfurous odor. It is the sodium salt of dithionous acid. Although it is stable under most conditions, it will decompose in hot water and in acid solutions. It can be obtained from sodium bisulfite by the following reaction:
2 NaHSO3 + Zn → Na2S2O4 + Zn(OH)2

Basic Info of Sodium dithionite

Basic Info
Numbering system
Properties
Safety Info
Basic Info

Numbering system

Properties

Safety Info

What is blankit?

With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives.

One such product is Sodium dithionite which has developed particularly rapidly in recent years. Do you know about Sodium dithionite?

The official answer: Sodium dithionite, known as insurance powder, is a strong reducing agent, with two forms: dihydrate salt and anhydrous salt. 

The dihydrate salt is a yellowish flaky crystal with an unstable chemicalbook quality, which is only present in alkaline solutions and is transformed into an anhydrous salt by dehydration when heated to a certain temperature; 

the anhydrous salt is a white crystalline powder, which is stable at room temperature and dry.

What’s the application of blankit?

Disodium bisulfite is a strong reducing agent with a wide range of applications:

1. used in the textile industry as a reducing agent for reducing dyestuff dyeing, reducing bleaching agent, reducing dye printing auxiliaries, refining and bleaching agent for silk, stripping agent for dyeing materials and cleaning agent for dyeing tanks, etc.;

2. used in the paper industry as a bleaching agent for mechanical pulp, hot grinding mechanical pulp and deinking pulp. It is the most suitable bleaching agent for Chemicalbook combined wood pulp paper making;

3, as a reducing bleaching agent used in the bleaching of kaolin, bleaching and reducing whitening of fur, bleaching of bamboo and straw products, etc.;

4, applied in mineral processing, synthesis of thiourea and its sulfide, etc.;

5, used as a reducing agent in chemical industry; 6, food additive grade is used in food industry, used in preserves, dried fruits, dried vegetables, vermicelli, grapes, etc.

6、Food additive grade is used in food industry, used in candied fruits, dried vegetables, vermicelli, grapes.

Conclusion

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