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Sodium Sulfite
CAS No.: 7757-83-7
Molecule Formula: Na2SO3
Molecular Weight: 126.04
Properties:
Sodium Sulfite is white crystalline or powder form; triangular prism crystal shape; alkaline water solution with pH at 9–9.5; The highest water solubility is about 28% with temperature at 33.4℃. When exposed to air, it is oxidized to form sodium sulfate. When heated to high temperature, it decomposes to form sodium sulfide; Density: 2.633, Refractive Index: 1.565
Specification:
Items |
Index |
Sodium sulfite(Na2SO3)% |
96.0 min |
Fe % |
0.002 max |
Water-insoluble % |
0.01 max |
Free alkali(as NA2CO3) % |
0.1 max |
Usage:
Mainly used in printing and dyeing, medicine, photograph, electronic galvanizing, chemical agents, organic synthesis, etc.
Package:
Bag or drum, as per requirement.
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