| CAS No.: | 7775-14-6 |
|---|---|
| Purity: | 88% |
| Type: | Sodium Hydrosulfite |
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SODIUM HYDROSULFITE, also known as sodium hydroxide, is a white sandy crystal or light yellow powder chemical product, melting point 300 (decomposition), ignition temperature 250, insoluble in ethanol, soluble in sodium hydroxide solution, in contact with water It reacts violently and burns.
|
INDEX |
90% |
88% |
85% |
74% |
|
Na2S2O4 |
≥90% |
≥88% |
≥85% |
≥74% |
|
Fe |
≤20ppm |
≤20ppm |
≤20ppm |
≤30ppm |
|
Zinc(Zn) |
≤1ppm |
≤1ppm |
≤1ppm |
≤1ppm |
|
Other heavy metal (as Pb) |
≤1ppm |
≤1ppm |
≤1ppm |
≤1ppm |
|
Water Insolubles |
≤0.05% |
≤0.05% |
≤0.05% |
≤0.05% |
|
Shelf Life(month) |
12 |
12 |
12 |
12 |
Package: 50KGS/DRUM, 21TONS/20'FCL WITHOUT PALLET.
Delivery time: 5-15 days after receiving payment.
SODIUM HYDROSULFITE usage
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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