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■ Specifications
CAS No.:7775-14-6
MF:Na2S2O4
EINECS No:231-890-0
Packaging & Shipping
Application :vat dyeing, printing and stripping , reduction cleaning,
leaching textile materials such as silk, wool, nylon and other fibres
bleaching mechanical pulps ,thermo-mechanical pulps, deinked pulps
bleaching kaolin
bleaching foodstuffs like sugar, honey , gelatin etc .
reducing agent for organic synthesis and pharmaceuticals
MF:Na2S2O4
EINECS No:231-890-0
Packaging & Shipping
Application :vat dyeing, printing and stripping , reduction cleaning,
leaching textile materials such as silk, wool, nylon and other fibres
bleaching mechanical pulps ,thermo-mechanical pulps, deinked pulps
bleaching kaolin
bleaching foodstuffs like sugar, honey , gelatin etc .
reducing agent for organic synthesis and pharmaceuticals
■ Full Data
| 90% GRADE | 88% GRADE | 85% GRADE | Food additive GRADE | |
| Na2S2O4 | ≥90% | ≥88% | ≥85% | ≥85% |
| Water insolubles | ≤0.05% | ≤0.05% | ≤0.05% | |
| Iron (Fe) | ≤20ppm | ≤20ppm | ≤20ppm | ≤20ppm |
| Appearance of Aqueous solution | clear | |||
| Zinc (Zn) | ≤1ppm | ≤1ppm | ≤1ppm | ≤1ppm |
| Arsenic(As) | ≤1ppm | |||
| Other heavy metals (as Pb) | ≤1ppm | ≤1ppm | ≤1ppm | ≤1ppm |
| Format(as HCHO) | ≤0.05% | |||
| Shelf life(months) | 12 | 12 | 12 | 12 |