SODIUM SULPHITE

SODIUM SULPHITE

Sodium sulphite is used as an antichlor in water treatment and desalination plants; in the reduction of wastewater in chrome-plating industry; as a preservative in the manufacture of trinitrotoluene (TNT); as a bleaching agent and for scrubbing sulphur dioxide gas in pulp mills in power plants and for leather treatment.


It is also used as an oxygen scavenger in low-pressure boilers and in the manufacture of detergent, sodium thiosulphate and photographic chemicals.


Product specifications:

Formula: Na2SO3

Grade:

The product is manufactured in the following grades:

Photo

Food

Technical


Applications:

Pulp and paper

In the production of pulp by sulphite semi-chemical process and chemi-thermo mechanical means

Applications:
Water treatment

As an antichlor

Boiler water

As an oxygen scavenger

Chemicals and drugs

A moderate reducing agent in the manufacture of sodium thiosulphate, sulphonated chemicals, sulphomethylation, and acetaminophen

Natural latex rubber

As a preservative

Photography

As a preservative

Food industry

As an antioxidant, enzyme inhibitor and anti-microbial agent

Fibre industry

As a solvent for raw materials, an additive for precipitation baths, for bleaching and for desulphurising bobbins

Chlor-alkali

To destroy chlorine in return brine

Leather industry

In the sulphitisation of tanning extract

Explosives

In the production of trinitrotoluene (TNT)

Minerals

Oil well floatation as an oxygen scavenger

Detergents

In the manufacture of sulphosuccinates and shampoo