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Sodium Sulfite Anhydrous
Formula: Na2SO3
Properties: Sodium Sulfite is a reducing agent soluble in water. Its solution in water is basic. It is feeble soluble in liquid chlorine or ammonia.
Usage: It is used as a desoxydating or bleaching agent for printing and dyeing industry, as a developer for photographic industry . as a lignin-removing agent for paper industry, as a stabilizer for syntheticfiber for textile industry, as a reducing agent for chemical industry, or for electroplating industry etc.
 
Items
Norms (industrial grade)
Superior-grade
First-grade
Qualified-grade
Na2SO3 -content % ≥
97.0
96.0
93.0
Fe-content % ≤
0.003
0.005
0.02
Water-insoluble matter content % ≤
0.02
0.03
0.05
Free alkali ( as Na)content % ≤
0.10
0.40
0.80
Na2SO4 -content % ≤
2.5
——
——
NaCL-content % ≤
0.10
——
——
 
Package Storage and transportation:
(1)Plastic film-lined PP woven bag, Net weight per bag: 25Kg or 50Kg.
(2)Not allowed in a room with any oxidant or strong acid, and keep away from an oxidation by air or humidity.
(3)Keep away from sunlight and humidity during its transportation.
(4)Storage life: no more than half year from ex-factory date.
 
Synthetic Cryolite
Aluminum Fluoride
Alumina (AL2O3)/Industry grade
Alumina Special (AL2O3)
Aluminum Hydroxide (Al(OH)3 )/ Industry grade
Sodium Hyposulphite
Caustic Soda flake (NaOH)
Sodium Sulfite Anhydrous
Sodium Tripolyphosphate (STPP)
Sodium Metabisulfite
Oxalic Acid
Sodium formate
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