Reasonable price for Direct Blue Dyes For Wool - Calcium Hydrosulphite – LEADING
Reasonable price for Direct Blue Dyes For Wool - 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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The corporate keeps towards the operation concept "scientific administration, superior quality and performance primacy, client supreme for Reasonable price for Direct Blue Dyes For Wool - Calcium Hydrosulphite – LEADING , The product will supply to all over the world, such as: Peru, Detroit, Seattle, Our professional engineering group will always be ready to serve you for consultation and feedback. We're able to also offer you with absolutely free samples to meet your requirements. Finest efforts will likely be produced to offer you the ideal service and goods. For anyone who is thinking about our company and merchandise, be sure to contact us by sending us emails or contact us quickly. As a way to know our merchandise and firm. lot more, you can come to our factory to find out it. We'll always welcome guests from all over the world to our business to build company relations with us. Be sure to feel free to get in touch with us for business and we believe we've been intending to share the top trading practical experience with all our merchants.

Product quality is good, quality assurance system is complete, every link can inquire and solve the problem timely!
