Price Uses of Sodium Hydrosulphite for Leather

Product Description

price uses of sodium hydrosulphite for leather

Product: Sodium hydrosulfite
CAS No: 7775-14-6
Purity: 90% ,88% ,85%
MF: Na2S2O4
MW: 174.11
MP:300 °C
BP:1390°C
Density:2.13
Storage temp.:Store at RT.
Solubility:250 g/L (20°C)
Water Solubility:250 g/L (20°C)
CAS DataBase Reference:7775-14-6(CAS DataBase Reference)
NaCO3(wt%):2-6
Appearance: Free-flowing white crystalline powder
Odor: Odorless or with a slight odor of sulfur dioxide
Usage: Sodium Hydrosulphite is widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping etc.

 

Specification of Na2S2O4 Sodium Hydrosulfite SHS 

Quality standard:
                          Technical grade: HG/T 2074-1991 JIS K 1476-1995
                          Food grade: GB2682-199
Warranty period: 12 months after production date

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 of Na2S2O4 Sodium Hydrosulfite SHS 

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 of Na2S2O4 Sodium Hydrosulfite 
Iron bucket hermetic packing, inside liner double-layer plastic bag,net weight 50KG, 21mt per 20FCL.

 

Henan Sinowin Chemical Co.,Ltd. is a large comprehensive enterprise, it is engaged in the R & D,
production,sales trade forchemical industry. We have been in this line for almost 20 years. Our facilities
areworld advanced, like the Germany importedproduction line, Modern aseptic production workshop,fully
automatic packing machine, stereos/copic warehouse and advanced lab. So quality goods, competitive
price,prompt delivery, stable supply and good after- sales service can be guaranteed. Nowadays, our
business scope has been extended to more than 50 types in 6 series,it is water treatment chemical,
coating, solvent, detergent chemicals , PVC additives and Food additives). Sinowin Chemical materials
has been popularly selling worldwidely and the sionwin brand has become a shining business card for
our company.


FAQ:
1.Q:Are you a factory or trading company ?
A:We are a factory.
2. Q: What documents you provide ?
A: Usually, we provide Commercial Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know
3. Q: What is loading port ?
A: Usually is Shanghai or Qingdao.
4.Q:What is the payment terms ?
A: L/C ,T/T, W/U
5. Q:How can I get some samples ?
A: Kindly send us your address, we are honored to offer you samples.