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sodium pyrosulfite anhydrous 7681-57-4
Item |
Quality Index |
|
Food Grade |
Industry Grade |
|
Purity ( As Na2S2O5) |
98.0% min |
96.0% min |
Sulfur Dioxide( SO2) |
65.0% min |
65.0% min |
Arsenic ( As ) |
0.0002% max |
- |
Heavy metals ( As Pb ) |
0.0005% max |
- |
Selenium (Se ) |
0.0005% max |
- |
Iron (Fe) |
0.001% max |
0.002% max |
Water insoluble |
0.02% max |
0.05% max |
PH value : |
4.0-4.8 |
4.0-4.8 |
Remark : |
Conformed with FCC V and E 223 Standard |
|
Application:
(1) Food Grade: Bleach agent (e.g. candies, cake, bamboo shoots, etc); Loose agent (e.g. bread, cracker etc); Antiseptic and germicide (e.g. fruit juice, tinned food, brews, the cereals food is defended storage etc); Inhibitor and freshen agent (e.g. day lily, seafood, fruit and vegetable etc).
(3) Pharmaceutical Grade: In chemical synthesis in the production of acrylic fibre, vitamin K, vitamin A, pharmaceutical intermediates, etc.
(4) Photo Grade: The sensitize industry is served as the developing agent reductant and the protection of fixing bath dose.
1.Reply within 24 hours.
2.Complete after-sales service.
3.Good quality based on reasonable price.
4.Timely delivery and efficient logistic.
5.Large annual capacity.
6.Honest business.
Packaging & Shipping
Packaging form :25 kg / 50kg / 1000kg ton bags.
double package (small bag inside and ton bags outside) in a 20 feet container can load 25 tons without pallets 20 tons -22 tons in ton bags with pallets
Q 1:What's your main product?
A1: Our company specializes in exporting calcium chloride, sodium chloride, magnesium chloride, soda ash ,sodium bicarbonate ,sodium sulfate and so on.
Q2:How do you control the quality?
A2: We do quality control by the factory testing department.We also can do the Third-party testing.
Q3:How long time you can make the shippinng?
A3: We can make the shipping within15 days after receiving the deposit.
Q4: Do you offer free sample?
A4: Of course, but freight is yours.
Q5:Why would you like to establish business relations with me?
A5: Our company offer high quality products and reasonable price to customers. All products before
leaving factory passed strict inspection .
Send Inquiry to This Supplier
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