Model: | 7757-83-7 |
---|---|
Brand: | RongDa |
Origin: | Made In China |
Category: | Chemicals / Inorganic Chemical Materials / Other Inorganic Chemical Materials |
Label: | Sodium sulfite , Sodium sulfite anhyd , Anhydrous sodium sul |
Price: |
US $430
/ Metric Ton
|
Min. Order: | 1 Metric Ton |
1.Purity:96,98%
2.CAS no.:7757-83-7
3.MF:Na2SO3
4.White crytal powder Sodium Sulfite
2.Speicificaion
Specification for Industry Grade and Food Grade :
Item |
Quality Index |
|
Industry Grade |
Food Grade |
|
Purity ( As Na2SO3) |
96.0% min |
98.0% min |
Sodium sulphate ( SO4) |
2.0% max |
1.0% max |
Chlorides ( As NaCL) |
0.5% max |
0.1% max |
Arsenic ( As ) |
- |
0.0002% max |
Heavy metals ( As Pb ) |
- |
0.0005% max |
Iron (Fe) |
0.005% max |
0.002% max |
Water insolubles |
0.05% max |
0.02% max |
3.Usage
(1) Industry Grade : Used in Dyeing and printing Industry ,as dechlorinating agent and bleaching agent, in leather and tanning industry as bleaching agent , developer agent , reductant agent , stabilizer agent , or used in papermaking, electronic and water treatment industry.
(2) Food Grade: In food industry as additive (E223) preservative, antioxidant and antimicrobic for fruits (dried, glazed and candled), vegetables (onions, potatoes, etc.), juices (citrus and grapes) and fish (shrimps and prawns). In silage treatment as antifermentative. In starch and sweeteners production as bacteriostatic.
(3) Photo Grade: In the photographic industry as component of developer bath .
(4) Pharmaceutical Grade : pharmaceutical industry for the production of chloroform, benzene and formaldehyde phenylpropanoid Sulfone
4.Storage
Sodium sulfite should be stored in a dry and cool place.
5.Package
Sodium sulfite is packed in net weight 25kg plstic woven bag with plastic inner bag.
25tons/20'FCL.
Rongda Chemical Co.,Ltd | |
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Country/Region: | Hu Nan - China |
Business Nature: | Manufacturer |
Phone: | 18974195732 |
Contact: | Becky Dai (Sales Manager) |
Last Online: | 17 Jun, 2014 |