8 Year Exporter Vinylon Cotton Fabric Dyeing - Calcium Hydrosulphite – LEADING
8 Year Exporter Vinylon Cotton Fabric Dyeing - Calcium Hydrosulphite – LEADING Detail:
Sodium hydrosulphite
General name: Sodium hydrosulphite
Molecular formula: Na2S2O4
Appearance:white free-flow crystal powders
Smell:flavourless or smell of sulfur dioxide
Packing:50kg net iron drums with double inner polybags.
Application:
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.
INDEX |
90% |
88% |
85% |
FOOD ADDITIVE |
Na2S2O4 |
≥90% |
≥88% |
≥85% |
≥85% |
Fe |
≤20ppm |
≤20ppm |
≤20ppm |
≤20ppm |
Zinc(Zn) |
≤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 |
Product detail pictures:

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Our products and solutions are greatly recognized and trustworthy by customers and may fulfill constantly changing financial and social requires for 8 Year Exporter Vinylon Cotton Fabric Dyeing - Calcium Hydrosulphite – LEADING , The product will supply to all over the world, such as: South Africa, Philadelphia, French, Customer satisfaction is our goal. We are looking forward to cooperating with you and providing our best services for you. We warmly welcome you to contact us and please feel free to contact us. Browse our online showroom to see what we can do for you. And then E-mail us your specifications or inquiries today.

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