Factory Directly Sell of Sodium Hydrosulfite with high quality

Ref Price:
Loading Port:
Qingdao
Payment Terms:
TT OR LC
Min Order Qty:
22 m.t.
Supply Capability:
3000 m.t./month

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Product Description:

Packaging & Delivery

Packaging Detail:in 50kg net iron drums with double inner polybags.
Delivery Detail:12 days.

Specifications

Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching .

Sodium Hydrosulphite

Molecular Formula:Na2S2O4

CAS No: 7775-14-6

EINECS No: 231-890-0

UN No.: 1384.

Hazard Class.: 4.2.

Packing Group: II

Hs Code: 28311010

Specifications:

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

Appearance:white free-flow crystal powders
Packing:50kg net iron drums with double inner polybags, 21MT/20’ FCL. 

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. 

 

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