Sodium Hydrosulphite

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Product Description

As a professional Sodium Hydrosulphite supplier and manufacturer, In-finechem Group has been supplying and exporting Sodium Hydrosulphite from China for almost 10 years, please be assured to buy Sodium Hydrosulphite at In-finechem. Any inquiries and problems please feel free to send emails to us via infinechem@aliyun.com, we will reply you within 1 working day.

Product Detail

Sodium Hydrosulphite CAS 7775-14-6

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.

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

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.