Sodium Sulphite

Sodium Suiphite Sodium Sulphite( Sodium Sulfite) is a white crystalline or powder; readily soluble in water, decomposes on heating. It is prepared from sulfur dioxide and sodium carbonate or caustic soda. It is a strong reducing agent and reacts with oxidants.It is a product of sulfur dioxide scrubbing, a part of the flue-gas desulfurization process. Sodium Sulphite is also used as a preservative to prevent dried fruit from discoloring, and for preserving meats, and is used in the same way as sodium thiosulfate to convert elemental halogens to their respective hydrohalic acids, in photography and for reducing chlorine levels in pools.
Basic details:
Molecular Formula:Na2SO3
Molecule Weight:126.04
Appearance:white or light yellow crystalline powder.
Quality standard: HG/T 2967-2000
CAS: 7757-83-7
Synonyms: Sodium sulfite anhydrous; disodium sulfite

Packing: in polythene plastic bag with a polypropylene overbag
Net weght: 25 kilograms per bag or following your demand.

Specification

Name
Premium grade
First grade
Second grade
Sodium sulphite %≥
97
96
93
Fe %≤
0.003
0.005
0.01
Water insoluble matter %
0.02
0.3
0.05
Free alkali %≤
0.1
0.4
0.6
Sulfate radical %≤
2.5
-
-
Sodium chloride %≤
0.1
-
-