sodium hyposulfite
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Quality/Safety Certification: 0.00
Product name: sodium hyposulfite
purity:85-90%
competive price
used in bleach
quality assurace with CIQ, SGS cet
Sodium Hydrosulfite
Molecular formula: Na2S2O4
CAS: 7775-14-6
EINECS code 234-394-2
CAS: 7775-14-6
Use: widely used in textile industry for vat dyeing , reduction cleaning, printing and stripping , textile bleaching .
Packing: 25kg plastic woven bags
Spec.
Specification | 90% | 88% | 85% | Food grade |
Na2S2O4 | ≥90% | ≥88% | ≥85% | ≥85% |
Fe | ≤20ppm | ≤20ppm | ≤20ppm | ≤20ppm |
Zn | ≤1ppm | ≤1 ppm | ≤1ppm | ≤1ppm |
Solution Appearance | Clear | Clear | Clear | Clear |
Other heavy metal (as pb) | — | — | — | — |
HCHO | — | — | — | ≤0. 05% |
Water insoluble matter | ≤0.05% | ≤0.05% | ≤0.05% | — |
Reserve period (months) | 12 | 12 | 12 | 12 |
