EN 
JA
KO
AR
VI
TR
Caratteristiche
1.Purity:90%, 93% , 96%
2. N. CAS: 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.
Articolo | Grado tecnologico | Grado tecnologico |
Na2SO3 | ≥96% | ≥93% |
Alcali liberi | ≤0.4% | ≤0.5% |
Ferro | ≤0.005% | ≤0.01% |
Materia insolubile in acqua | ≤0.05% | ≤0.1% |
Sodium Sulfate(Na2SO4) | ≤2.0% | ≤1.5% |
NaCl | ≤0.5% | ≤1% |
Applicazioni
Agente sbiancante per pasta di carta, Trattamento delle acque reflue, Agente sbiancante per l'industria mineraria, Decolorante e disossidante, Ausiliario chimico nel processo di concia
Specifiche
| Articolo | Grado tecnologico | Grado tecnologico |
| Na2SO3 | ≥96% | ≥93% |
| Alcali liberi | ≤0.4% | ≤0.5% |
| Ferro | ≤0.005% | ≤0.01% |
| Materia insolubile in acqua | ≤0.05% | ≤0.1% |
| Sodium Sulfate(Na2SO4) | ≤2.0% | ≤1.5% |
| NaCl | ≤0.5% | ≤1% |
