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Identification

HS Code :

28311000

CAS N0  :

7775-14-6

Form      :

powder to crystal

M. Mass :

174.1�

Color      :

White

Formula :

Na2S2O4

Sodium Hydrosulphite

Description

Sodium Dithionite, commonly known as Sodium Hydrosulphite. It is produced through 2 different process - Zinc processs and Sodium Format process.

Usage

Sodium hydrosulfite is used as a reducing, sulfonating, chelating and decolorizing agent in organic reactions.
Sodium Hydrosulphite is used in dyeing, reduction clearing of dyed synthetic fabrics and yarns, cleaning dye-soiled dyeing machines, stripping fabrics before re-dyeing and Disulphate linkage in wool hair
It can also be used as a discharging agent to help remove color from fabric, or create neat patterns.
Used as a reductive bleaching agent for recycled pulp, and for bleaching of Kaolin clay.
In metal industry it is used as reducing agent for the reduction of heavy metals like Titanium, Chromium, Manganese, Molybdenum and Tungsten.
It includes Machine cleaning, Water treatment, gas purification and cleaning
In Food industry, it is used as bleaching agent for the products like Jaggery, Sugar, Honey and Gelatin
It is also used in Soap, Glue and leather, polymers, photography etc. manufacturing
It helps in oil recovery to stabilize polyacrylamide polymers to avoid degradation in the presence of iron.
In soil chemistry it is used to determine the iron content.

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