Name：Sodium Metabisulte
Chemical formula：Na2S2O5
sical appearance：White powder or small crystalicles.
Application:
1>Bleaching agent for textile fibres;
2>Colors stripper and dechlorination;
3>Preparation of Indigo Vat Dye;
4>Solubilizing and acidifyfing agent for leather industries ;
5>Bleaching agent for paper pulps;
6>Preservative and sterilisation agent for food industries.
Product Specification:
| TECH GRADE | FOOD GRADE |
NA2S2O5 | >96.5% | >97.0% |
SO2 | >65% | >65% |
FE | <0.005% | <0.005% |
WATER INSOLUBLE | <0.05% | <0.05% |
HEAVY METAL(PB) | <0.001% | <0.001% |
AS | <0.0003% | <0.0001% |
/span> | 4-4.5 | 4-4.5 |
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