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Product: Sodium Sulphite
used in medicine, papermaking, tannage, leather, printing, dyeing, bleaching and food. |
Product name: Sodium Sulfite Anhydrous
Molecular formula : Na2SO3
Appearance : white crystalline powder
Quality standard: HG/T 2967¡ª¡ª2000
Sepcification:
Index name |
Premium grade |
Super grade |
First grade |
Salable product |
Industrial grade |
Sodium sulfite ( Na2SO3 ) , % >= |
97.0 |
96.0 |
93.0 |
90.0 |
Fe , ¡ë <= |
0.003 |
0.005 |
0.01 |
/ |
Water insoluble matter , % <= |
0.02 |
0.03 |
0.05 |
/ |
Free alkali ( as Na2SO3 ) , % <= |
0.10 |
0.40 |
0.60 |
/ |
Na2SO4 , % <= |
2.50 |
/ |
/ |
/ |
NaCl , % <= |
0.10 |
/ |
/ |
/ |
Packing: double-layer plastic woven bag.
Uses : used in medicine, papermaking, tannage, leather, printing, dyeing, bleaching and food . |
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