Online Exporter C.i.101380-00-1/ Paper Dyestuff - Calcium Hydrosulphite – LEADING
Online Exporter C.i.101380-00-1/ Paper Dyestuff - 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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Sticking towards the theory of "Super Good quality, Satisfactory service" ,We are striving to become a superb business enterprise partner of you for Online Exporter C.i.101380-00-1/ Paper Dyestuff - Calcium Hydrosulphite – LEADING , The product will supply to all over the world, such as: Nepal, Montpellier, Paraguay, Based on experienced engineers, all orders for drawing-based or sample-based processing are welcomed. We have won a good reputation for outstanding customer service among our overseas customers. We will continue to try the best to offer you good quality products and the best service. We are looking forward to serving you.

Product variety is complete, good quality and inexpensive, the delivery is fast and transport is security, very good, we are happy to cooperate with a reputable company!
