Audited Supplier
Name: sodium metabisulfite
Other names :sodium pyrosulfite sodium metabisulfite
Chemical formula Na2S2O5
Molecular weight 190.107
CAS login number 7681-57-4
EINECS entry number 231-673-0
Melting point 150 ºC
Water soluble: soluble
Density 1.48 g/cm³
White crystalline powder on the outside
Application:
Used in the production of insurance powder, sulfadimethylpyrimidine, anethine, caprolactam, etc.;
Used in the photographic industry as a fixing agent ingredient;
The spice industry is used to produce vanillin; Used as a preservative in brewing industry; Rubber coagulant and cotton bleaching dechlorination agent; Organic intermediates;
Used for printing and dyeing, leather; Used as a reducing agent;
Used as electroplating industry, oilfield wastewater treatment and used as mineral processing agent in mines;
It is used as a preservative, bleach and loose agent in food processing.
Specification:
| Items | Specification | Testing Result |
| Purity (As Na2S2O5 ) | 97% Min | 97.89% |
| Heavy Metal (Pb) | 0.0005% Max | 0.0001% |
| Iron (Fe) | 0.002% Max | 0.001% |
| Water Insoluble | 0.02% Max | 0.01% |
| PH Value | 4.0-4.8 | 4.4 |
Packing:
25kg/bag 50kg/bag 1000kg/bag
Any other bags could be customized and label could also be made according to your request.
Transport and storage:
The packing should be complete and the loading should be secure. During transportation, it is necessary to ensure that the container does not leak, collapse, fall or damage. It is strictly prohibited to mix with oxidants, acids and edible chemicals. During transportation, it should be protected from sunlight, rain and high temperature. The vehicle should be thoroughly cleaned after transportation.
Store in a cool, ventilated warehouse. Keep away from fire and heat. It should be stored separately from oxidizers and acids, and should not be mixed. Storage areas should be equipped with suitable materials to contain leaks.
Our Company:
Estabilished in 2011,Zouping Boyi Chemical Industry Co., Ltd products are well sold in more than 30 countries and regions in Europe, North America and Southeast Asia, and they are highly appraised and welcome by customers for excellent quality.Our products include industrial chemicals,food additives,feed additives,fertilizers,anyone you are interested,please contact me.
FAQ:
Q1: Can you offer free samples?
A: Yes, we can offer free sample, but courier fee should be paid by your side
Q2: How to pay?
A: We can accept T/T, LC,DP at sight,Western Union,Paypal
Q3: what is your MOQ?
A:Our MOQ is usually 20'FCL,but
Q4: How can you guarantee the quality of your products ?
We will test every batch goods by our quality department and we also can do thrid party inspection.
Q5: Do you have any other chemicals?
A: Yes, we have many other chemicals including agrochemicals,industrial chemicals,watertreatment chemicals,fertilizers and food feed addtives,if you have any needs,please let me know.
