Specification of the Anhydrous Sodium Sulfite
1,Molecular formula : Na2SO3
2,Molecular weight : 126.04
3,Appearance : white crystalline powder
4,Main content :97%,96%,93%
5,Competitive price,
6,Pass ISO, producing under strict inspection
7,Annuual production:20,000mt
Quality standard : Q/320124JM02-2003
| Index name |
Premium grade |
| Super grade |
First grade |
Salable product |
Industrial grade |
| Sodium sulfite ( Na2SO3 ) , % ≥ |
97.0 |
96.0 |
93.0 |
90.0 |
| Fe , ?≤ |
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 , % ≤ |
1.10 |
/ |
/ |
/ |
| NaCl , % ≤ |
0.08 |
/ |
/ |
/ |
Usge
1, Paper-making industry
2, Leather industry
3, Bleaching
4, Tannage and food
5, Dyeing and painting industry
Package Storage and transportation:
1, Double-layer plastic woven bag. Net weight per bag: 25Kg or 50Kg.
2, Not allowed in a room with any oxidant or strong acid
3, Keep away from an oxidation by air or humidity.
4, Keep away from sunlight and humidity during its transportation.
5, Storage life: no more than half year from ex-factory date.
