Address:Room 8806-8808 World Financial Center No.2 North Dagu Road, Tianjin, China.

Current Location: Home > Product > Tannery Chemicals
Tannery Chemicals

Sodium Metabisulphite 98% Min

Sodium Metabisulphite 98% Min
Sodium Metabisulphite 98% Min Display pictures2 Display pictures3 Display pictures4
  • Alias:Sodium Metabisulphite
  • CAS NO.:7681-57-4
  • HS Code:28321000
  • Appearance:White Crystalline Powder
  • Packing:25kgs/p.p bag or 1.2MT Jumbo Bag
  • Brand:YUNXIANG


Sodium Metabisulphite 98% Min:

1.CAS NO.:7681-57-4

2.EINECS No.:231-673-0

3.HS CODE: 28321000

4.Molecular Formula:  Na2S2O5

5.Molecular Weight:  190.09

6.Appearance: White Crystalline Powder

7.Detail Specifications:

Item Standards            Test Result           
Na2S2O5(%) 98.0% Min 98.20
SO2(%) 65.0 Max 65.2
Iron(%) 0.0015 Max 0.0012
As(%) 0.0002 Max 0.0002
Se(%) 0.0005 Max 0.0005
Pb(%) 0.0005 Max 0.0004
Matter Insoluble In Water(%) 0.05 Max 0.05
Ph Value 4.0-4.8 4.5
Conclusion Qualified


White or yellowish crystalline powder with strong SO2 odor; specific wt.: 1.4. soluble in water, its aqueous solution is acidic.


.Dye printing mordant. 
.Textile antichlor after being bleached.
.Reducing agent and sulfonating agent for chemical and medical use.
.Bamboo, wood, paper fiber bleaching agent, non-ferrous metal ore dressing agent, waste water treating , rubber freezing agent.


Packed in 25kg plastic woven bag, 25kg Kraft paper bag, 25kg PE bag, 500kg/1000kg/1100kg/1200kg jumbo bag or as per the buyer's requirement.


COA Download MSDS Download


Hits:  UpdateTime:2015-05-13 09:50:19  【Printing】  【Close