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Sodium Sulphite

Sodium Sulfite

Sodium Sulphite

Name: Sodium Sulfite

Synonyms: Sodium sulfite anhydrous; sodium sulphite; anhydrous sodium sulfite

Molecular formula: Na2SO3

CAS:7757-83-7
Molecule weight: 126.04
Quality standard: HG/T 2967-2000     

Appearance: White or light yellow crystalline powder.with the smell of sulfur dioxide , lose SO2  in the air,become the sulfate
soluble in water,slightly soluble in alcohol,insoluble in liquid ammonia

Item

Sodium Sulfite

Sodium Sulfite 97%

Sodium Sulfite 96%
Sodium Sulfite 93%

content (Na2SO3),%

≥ 97.0

≥ 96.0

≥ 93.0

Fe,%

≤ 0.003

≤ 0.005

≤ 0.02

Soluble substance in water%  

≤ 0.02

≤ 0.03

≤ 0.05

 Educt Alkali(Na2CO3),%

≤ 0.10

≤ 0.40

≤ 0.80

 Sodium sulfite(Na2SO4),%

≤ 2.5

Sodium chloride(NaCl),%

≤ 0.10

Sodium Sulfite Uses:
• In photography: In formulation of developers and fixers solutions.
• In water treatment: Oxygen scavenger in Boiler water and drilling water.
• In effluent water: Treatment of excess chlorine & detoxification of chromic acid in electro plating industries.
• In pulp & paper: In processing of semi-chemical pulp production in chemi-thermo-mechanical and kraft pulping process.
• In chemical industry: In manufacture of sodium thiosulphate , sulphonating agent,

• In detergents : manufacture of sulfosuccinates – sampoo.
• In dyetuffs: Reducing agent in manufacure of indigo - vat dyes.
• In rubber: Stabilizing latex. – anticogulant.

Packing: In polythene plastic bag with a polypropylene overbag

Net weght: 25 kilograms per bag or following your demand.