8 Year Exporter Benzo Fast Black G Cas 6428-31-5 - Calcium Hydrosulphite – LEADING factory and manufacturers

8 Year Exporter Benzo Fast Black G Cas 6428-31-5 - Calcium Hydrosulphite – LEADING

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8 Year Exporter Benzo Fast Black G Cas 6428-31-5 - 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

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We not only will try our greatest to offer you excellent services to each individual client, but also are ready to receive any suggestion offered by our buyers for 8 Year Exporter Benzo Fast Black G Cas 6428-31-5 - Calcium Hydrosulphite – LEADING , The product will supply to all over the world, such as: Czech Republic, Hamburg, Macedonia, We would very much welcome an opportunity to do business with you and have pleasure in attaching further details of our products. Excellent quality, competitive prices,punctual delivery and dependable service can be guaranteed.

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