Sodium hydrosulfite

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Sodium hydrosulfite
Posting date : Aug 06, 2012
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28-
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Sodium hydrosulfite Molecular Weight: 174.1071 CAS No.: 7775-14-6 Appearance: white free-flowing crystal powder Molecular Formula: Na2O4S2 Applications: (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. Package:50KGS/DRUM Technological Property: Standard 1. Na2S2O4 ≥85% Iron(Fe) ≤20ppm zinc(Zn) ≤1ppm Heavy metal(as Pb) ≤1ppm Water Insolubles ≤0.05% Standard 2. Na2S2O4 ≥88% Iron(Fe) ≤20ppm zinc(Zn) ≤1ppm Heavy metal(as Pb) ≤1ppm Water Insolubles ≤0.05% Standard 3. Na2S2O4 ≥90% Iron(Fe) ≤20ppm zinc(Zn) ≤1ppm Heavy metal(as Pb) ≤1ppm Water Insolubles ≤0.05%

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