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CAS No: 7775-14-6 Sodium hydrosulfite

Product: Sodium hydrosulfite
CAS No: 7775-14-6
Purity: 90% ,88% ,85%
MF: Na2S2O4
Appearance: Free-flowing white crystalline powder
Odor: Odorless or with a slight odor of sulfur dioxide
Usage: Sodium Hydrosulphite is widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping etc.

Product Description Of Sodium hydrosulfite

Product: Sodium hydrosulfite
CAS No: 7775-14-6
Purity: 90% ,88% ,85%
MF: Na2S2O4
Appearance: Free-flowing white crystalline powder
Odor: Odorless or with a slight odor of sulfur dioxide
Usage: Sodium Hydrosulphite is widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping etc.

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Technical Specification of Sodium hydrosulfite

INDEX90%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)121212

12

Application of  Sodium hydrosulfite


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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Packing & Delivery of Sodium hydrosulfite

Iron bucket hermetic packing, inside liner double-layer plastic bag,net weight 50KG, 21mt per 20FCL.

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