Resin System
  Paint System
  Acid System
  Sodium System
  Plasticer System
  Other chemical
 
 
 
Henan Sinova Enterprise Co.,LTD
No.10,Liuzai Road,Jinshui District,
Zhengzhou,China
Tel: 86-371-55030625
Tel/Fax:86-371-61368825
Web:www.sinovachem.com
 
 
 

Sodium Hyposulfite

Product Name: Sodium Hyposulfite
CAS No.: 7775-14-6
Molecular Weight: 174.108
Molecular Formula:Na2S2O4
Appearance: White Free-flow Crystal Powder

Specifications:


Index

90% GRADE

88% GRADE

85% GRADE

Food additive GRADE

Na2S2O4

90%

88%

85%

85%

Water insolubles

0.05%

0.05%

0.05%

/

Iron (Fe)

20ppm

20ppm

20ppm

20ppm

Appearance of Aqueous solution

Clear

Clear

Clear

clear

Zinc (Zn)

1ppm

1ppm

1ppm

1ppm

Arsenic(As)

 

 

 

1ppm

Other heavy metals (as Pb)

1ppm

1ppm

1ppm

1ppm

Format(as HCHO)

 /

 /

0.05%

Shelf life(months)

12

12

12

12

Analysis report:


ITEM

90%

88%

85%

FOOD  ADDITIVE

Na2S2O4

91.00%

89.50%

86.60%

86.96%

Na2S2O5

6.39%

6.64%

6.82%

6.54%

Na2CO3

1.10%

2.50%

5.70%

5.58%

Na2S2O3

0.18%

0.20%

0.41%

0.38%

Na2SO3

0.22%

0.21%

0.32%

0.36%

Fe

14ppm

15ppm

16ppm

11ppm

Water Insolubles

0.05%

0.04%

0.04%

0.01%


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, its 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 in dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms.

Usage:

vat dyeing, printing and stripping , reduction cleaning,
leaching textile materials such as silk, wool, nylon and other fibres
bleaching mechanical pulps ,thermo-mechanical pulps, deinked pulps
bleaching kaolin  
bleaching foodstuffs like sugar, honey , gelatin etc .
reducing agent for organic synthesis and pharmaceuticals

Packing:
15kg,20kg,25kg,50kg,100kg,200kg iron drum with double inner polythene bags; 500kg ,1200kg,1800kg intermediate bulk container (IBC)

 
Coryright © 2008-2013 HEAN SINOVA CHEMICALS ENTERPRISE CO.,LTD All Rights Reserved.
Address:No.10,Chengzai Road Jinshui District Zhengzhou China   Web:www.sinovachem.com