8 Year Exporter Benzo Fast Black G Cas 6428-31-5 - Calcium Hydrosulphite – LEADING
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 |
Product detail pictures:
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Our primary objective is usually to offer our shoppers a serious and responsible small business relationship, offering personalized attention to all of them 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: Bolivia, Toronto, Sevilla, We have a dedicated and aggressive sales team, and many branches, catering to our main customers. We are looking for long-term business partnerships, and ensure our suppliers that they will definitely benefit in both short and long run.
By Betsy from Colombia - 2016.08.18 18:38
The customer service staff's answer is very meticulous, the most important is that the product quality is very good, and packaged carefully, shipped quickly!
By Wendy from Guinea - 2015.12.30 10:21
