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≥97% Purity Sodium Sulfite powder Water Treatment SSA Industrial Bleaching Agent

Categories Sodium Sulfite Water Treatment
Brand Name: Kemsky
Model Number: sodium sulfite -03
Certification: ISO 9001 SGS
Place of Origin: Hunan
MOQ: 1 metric ton
Price: usd 510 per metric ton
Payment Terms: T/T , L/C
Supply Ability: 3000 tons per month
Delivery Time: 5-8 days
Packaging Details: 25 kgs bag,1000 kgs big bag
name: food and tech grade sodium sulfite
other name: food and tech grade sodium sulphite anhydrous
usage: industrial bleaching agent,water treatment for pool
packing: 25 kgs plastic woven bag/paper bag
mocular: Na2SO3 97% PURITY
CAS NO: 7757-83-7
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≥97% Purity Sodium Sulfite powder Water Treatment SSA Industrial Bleaching Agent


FOR WATER TREATMENT ANHYDROUS SODIU SULFITE SODIUM SULPHITE


SS 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.


Sodium sulphite



Product specifications:

Formula:Na2SO3
Grade:

The product is manufactured in the following grades:

  • Food
  • Technical
Applications:

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

Packaging / transportation
  • 25kg polypropylene woven / paper bags with heat sealed inner liner
  • 25kg HDPE bags
  • 500kg, 1,000kg, 1,100kg bulk sacks

Locally, it is transported in six-wheeler, 10-wheeler and trailer trucks. Internationally, it is transported in 20' containers. The maximum stuffing is 27Mt. / 20' fcl.



Sodium sulfite
Other names
Hypo clear(photography)
E221
Identifiers
CAS Number· 7757-83-7
3D model (JSmol)· Interactive image
ChEBI· CHEBI:86477
ChemSpider· 22845
ECHA InfoCard100.028.929
EC Number231-821-4
E numberE221 (preservatives)
PubChem CID· 24437
RTECS numberWE2150000
UNII· VTK01UQK3G
InChI[show]
SMILES[show]
Properties
Chemical formulaNa2SO3
Molar mass126.043 g/mol
Appearancewhite solid
Odorodorless
Density2.633 g/cm3 (anhydrous)
1.561 g/cm3 (heptahydrate)
Melting point33.4 °C (92.1 °F; 306.5 K) (dehydration of heptahydrate)
500 °C (anhydrous)
Boiling pointDecomposes(separate (substances) into constituent elements)
Solubility in water27.0 g/100 mL water (20 °C)
Solubilitysoluble in glycerol insoluble in ammonia,chlorine
log P-4
Acidity (pKa)~9 (heptahydrate)
Refractive index(nD)1.565
Structure
Crystal structurehexagonal (anhydrous)
monoclinic (heptahydrate)
Hazards
Safety data sheetICSC 1200

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