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70% Sodium Hydrosulfite for textile bleaching
- 5000 Metric Ton / Metric Tons per Month
- Qingdao/Xingang
- T/T
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Product Details
| Type | Sodium Hydrosulfite | CAS No. | 7775-14-6, 7631-94-9 | |
| Other Names | sodium dithionite/sodium hyposulfite/Sodium hydrosulphite | MF | Na2S2O4 | |
| EINECS No. | 231-890-0 | Place of Origin | Henan, China | |
| Grade Standard | Food Grade, Industrial Grade, Medicine Grade | Purity | 90%,88%,85% | |
| Appearance | white free-flowing crystal powder | Application | bleaching agent,textile industry,bleaching paper pulps,etc | |
| Brand Name | HR | Model Number | 85%88%90%Sodium hydrosulfite |
Product Description
70% Sodium Hydrosulfite for textile bleaching
INDEX | 90% | 88% | 85% | FOOD ADDITIVE |
Na2S2O4 | ≥90% | ≥88% | ≥85% | ≥85% |
Fe | ≤20ppm | ≤20ppm | ≤20ppm | ≤20ppm |
ZincZn | ≤1ppm | ≤1ppm | ≤1ppm | ≤1ppm |
Other heavy metal calculated as Pb | ≤1ppm | ≤1ppm | ≤1ppm | ≤1ppm |
Water Insolubles | ≤0.05% | ≤0.05% | ≤0.05% | ≤0.05% |
Shelf Life(month) | 12 | 12 | 12 | 12 |
Usage:
1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching .
2. It is also used in bleaching paper pulps , especially mechanical pulps, it’s the most fittable bleaching agent in pulps.
3. It is used in bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products,
4. It is used in mineral, the compound of thiourea and other sulphides.
5. It is used as reducing agent in chemical industry.
6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms.
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