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Features
1.Purity:90%, 93% , 96%
2.CAS NO.:7757-83-7
3.MF: Na2SO3
4.Appearance: white crystal powder
5.HS CODE: 28321000
6. Mol wt: 126.04
7. Application:bleaching agent for paper pulps ,waste water treatment, bleaching agent for mining industry, colors stripper and deoxidization ,auxiliary chemical in tanning process .
8.Package: Sodium sulfite is packed in net weight 25kg plstic woven bag with plastic inner bag. or as customers' request 25tons/20'FCL.
Ûnderdiel | Tech Grade | Tech Grade |
Na2SO3 | ≥96% | ≥93% |
Free Alkali | ≤0.4% | ≤0.5% |
Izer | ≤0.005% | ≤0.01% |
Wetter ûnoplosbere matearje | ≤0.05% | ≤0.1% |
Sodium Sulfate(Na2SO4) | ≤2.0% | ≤1.5% |
NaCl | ≤0.5% | ≤1% |
Oanfraach
Bleekmiddel foar papierpulpen, Behanneling fan ôffalwetter, Bleekmiddel foar mynbou, Kleurstripper en deoksidaasje, Auxiliary Chemical yn looienproses
Spesifikaasjes
| Ûnderdiel | Tech Grade | Tech Grade |
| Na2SO3 | ≥96% | ≥93% |
| Free Alkali | ≤0.4% | ≤0.5% |
| Izer | ≤0.005% | ≤0.01% |
| Wetter ûnoplosbere matearje | ≤0.05% | ≤0.1% |
| Sodium Sulfate(Na2SO4) | ≤2.0% | ≤1.5% |
| NaCl | ≤0.5% | ≤1% |
