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.

We produce sodium sulphite. And we sell not only sodium sulfite but also sodium sulfite heptahydrate, sodium sulfite anhydrous,sodium sulfite 93%,sodium sulphite 96% and sodium sulphite 97% and so on.