Product DescriptionDescription of Sodium Hydrosulphite:Product: Sodium hydrosulfite
CAS No: 7775-14-6
Purity: 90% ,88% ,85%
MF: Na2S2O4
MW: 174.11
MP:300 °C
Appearance: Free-flowing white crystalline powder
Odor: Odorless or with a slight odor of sulfur dioxideSpecification Sodium Hydrosulfite:INDEX90%88%85%FOOD ADDITIVENa2S2O4≥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)12121212
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 fitable 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 in dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms.
Packaging & ShippingPackaging:
Iron bucket hermetic packing, inside liner double-layer plastic bag,net weight 50KG
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Results : degrease cleaner
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