EN 
EN
RU
ES
FR
AR
BN
CN
CONTACT US
Company: Choice Chemicals Ltd.
Address: You'a Headquarters Office Building,Chaoyang Front Street, Furong District, Changsha,Hunan Province 410000,China
Mobile: 0086 731 89878447
E-mail: [email protected]
Sodium bisulphite
Information
|
Appearance |
White crystalline powder |
|
CAS No. |
7631-90-5 |
|
EINECS |
231-548-0 |
|
H.S. CODE |
2832100000 |
|
Molecular formula |
NaHSO3 |
Quality Standard
|
Item |
Chinese standard |
Company standard |
|
Main content (in SO2) % |
64 ~ 67 |
64 ~ 67 |
|
Water-insoluble ≤ % |
0.03 |
≤0.01 |
|
Chloride (Cl) ≤ % |
0.05 |
≤0.03 |
|
Iron (Fe) ≤ % |
0.004 |
≤0.001 |
|
Heavy metal(Pb)≤% |
0.001 |
≤0.0001 |
|
Arsenic (As) ≤ % |
0.0002 |
≤0.0001 |
|
pH Value(500g/L solution) |
4.0 ~ 5.0 |
4.0 ~ 5.0 |
Application
-
Sodium bisulphite is used for the bleaching of cotton fabrics and organic materials.
It is used as a reducing agent in dyestuff, papermaking, tanning, chemical synthesis, and other industries.
In the pharmaceutical industry, it is used to produce intermediates of metamizole and aminopyrine.
It is used as a bleaching agent, preservative, and antioxidant in food grade products.
It is used as a plating additive in the treatment of chromium-containing wastewater.
Packaging & Transportation
Packing: Polypropylene weaving bag lined with polyethylene plastic bag, paper plastic compound bag, etc.
Net weight: 25/50/1000kg bag or upon clients' request
