Cas No.: 7757-83-7

HS Code: 2832100000

Chemical Formula: Na2 O3 S

Net weight: 25KG/bag

PRODUCT DESCRIPTION

white fine crystal or powder, easily soluble in water; absorb moisture; odorless, non-toxic. 

PRODUCT USAGE

[Purpose 1]

Used for microanalysis and determination of tellurium and niobium, preparation of developing solution, and as reducing agent

[Purpose 2]

Used as artificial fiber stabilizer, fabric bleach, photographic developer, deoxidizer for dyeing and bleaching, perfume and dye reducing agent, lignin remover for paper making, etc

[Purpose 3]

Used as common analytical reagent and photoresist material

[Purpose 4]

Reducing bleaching agent has bleaching effect on food and strong inhibition on oxidase in vegetable food. China stipulates that it can be used for candied fruits, with the maximum usage of 2.0g/kg; It can also be used for glucose, liquid glucose, sugar, crystal sugar, malt sugar, candy, bamboo shoots, mushrooms and canned mushrooms, grapes, and blackcurrant concentrated juice, with the maximum dosage of 0.60g/kg. Residues of bamboo shoots, mushrooms and canned mushrooms, candied fruits, grapes and blackcurrant concentrated juice (calculated by SO2) ≤ 0.05g/kg; Residual amount of potato starch ≤ 0.03g/kg; The residue of biscuits, sugar, vermicelli and other varieties is less than 0.1g/kg; The residual amount of liquid glucose shall not exceed 0.2g/kg.

[Purpose 5]

As a deoxidizer and bleacher, the printing and dyeing industry is used for the cooking of various cotton fabrics, which can prevent the local oxidation of cotton fibers and affect the fiber strength, and improve the whiteness of the cooked fabrics. The photographic industry is used as a developer. The organic industry is used as a reducing agent in the production of m-phenylenediamine, 2,5-dichloropyrazolone, anthraquinone 1-sulfonic acid, 1-aminoanthraquinone, sodium aminosalicylate, etc., which can prevent the oxidation of semi-finished products in the reaction process. Paper industry is used as lignin remover. The textile industry is used as a stabilizer for man-made fibers. The electronic industry is used to make photoresistors. The water treatment industry is used for the treatment of electroplating wastewater and drinking water.

[Purpose 6]

Food industry is used as bleaching agent, antiseptic, loosening agent and antioxidant. It is also used in pharmaceutical synthesis. It is used as a reducing agent in the production of dehydrated vegetables.

[Purpose 7]

It is used to produce cellulose sulfite ester, sodium thiosulfate, organic chemicals, bleached fabrics, etc., as well as reducing agent, preservative, dechlorination agent, etc.

PACKAGING & STORAGE

It should be placed in a cool and dry place indoors to avoid sun and rain.