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EINECS 231-673-0 Sodium Metabisulfite Chemical For Printing And Dyeing

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xAppearance | White And Light Yellow Crystal Powder | Purity(%) | 96%Min,97% |
---|---|---|---|
CAS | 7681-57-4 | EINECS No. | 231-673-0 |
HS CODE | 2832100000 | Sample | Free |
Highlight | Sodium Metabisulfite Chemical For Printing,EINECS 231-673-0 Sodium Metabisulfite Chemical,sodium meta bi sulphate EINECS 231-673-0 |
96%Min Sodium Metabisulfite For Printing And Dyeing,Fixing Agent And Rongalite
1.Description:
Sodium metabisulfite is white or yellow crystalline powder or small crystals, with a strong smell of SO2, specific gravity 1.4, soluble in water, aqueous solution is acidic, and strong acid contact release SO2 and generate the corresponding salts, a long time in the air, oxidation into Na2S2O6, so the product can not survive. Above 150 degrees Celsius, SO2 is broken down.
2.Applications:
(1)It is used in the production of sodium hydrosulfite, sulfamethazine, analgin, caprolactam, chloroform, phenylpropanesulfone and benzaldehyde purification.
(2)The photographic industry is used as an ingredient for fixers. The perfume industry is used to produce vanillin.
(3)It can be used as preservative in brewing industry, rubber coagulant and dechlorination agent after cotton bleaching. Organic intermediates, dyestuffs, tanning are used as reducing agents in electroplating, wastewater treatment in oil fields and mineral processing agents in mines.
(4)Industry: used in printing and dyeing, organic synthesis, printing, tanning, pharmaceutical and other departments; in food processing as preservative, bleaching agent, loosening agent.
(5)It can be used as chemical reagent (printing and dyeing, photography, etc.), bleaching agent, mordant, reducing agent, rubber coagulant, organic synthetic medicine and perfume.
(6)For dyestuff and pharmaceutical industry: it can be used as chromatographic reagent, preservative and reducing agent.
3.Specifications:
TEST ITEMS
|
TEST STANDARD
|
TEST RESULT
|
Na2S2O5 | ≥96.5% | 97.42% |
FERRON(Fe) | ≤0.005% | 0.001% |
WATER INSOLUBLE | ≤0.05% | 0.02% |
ARSENIC(As) | ≤0.0001% | <0.0001% |
HEAVY METAL(Pb) | ≤0.0005% | <0.0002% |
CLARITY | PASS | PASS |
APPEARANCE |
WHITE OR LIGHT YELLOW CRYSTAL POWDER
|
PASS |
4.Why choose us:
1.We are direct manufacturer.
2.More than 13 years' experience in Industry and Agriculture.
3.Working with shipping company directly,can get lower sea freight.
4.Grasp industry information timely.
5.Faster working efficiency, better service,and ensure after-sale service.
6.The geographical position is superior,near the mine and the port.
7.Superior raw material.
8.Quality certificate:ISO, SGS.
9.With rich and professional export experience in container and bulk cargo ship.
10.Annual capacity 30,000mts.
11.Provide professional Pre sale consulting,including product, packaging, transportation,certification and testing etc.
12.Test the quality, weight and packaging of the product before shipment.
13.Prompt reply within 12 hours.
14.Bag customization service.
5.
6.FAQ:
1.Q: Are you a factory or trading company?
A: We are a company combined inbody with manufacture and trading units.
2.Q: Could you provide sample for test before mass production?
A: Sure,we can send free samples to you,and we also attached the COA, but for the sample shipping fees, our company can’t afford it!
3.Q: How can i get the exact quotation?
A: Kindly tell us the exact product specification, your usage, we will provide the exact quotation for you.
4.Q: Can you provide the COA?
A: Sure,we can provide, but only provide the normal product, if you want to the exact COA, we need to produce the sample. After testing, provide the exact COA.
5.Q: Can you accept OEM(specical spec,size)?
A: sure ,we can customized according to customer’s different requirement, but not only that, packing we also can design according your request.
6.Q: If i know the usage,but don't know the exact specification,can you provide the exact quotation?
A: Sure, we will recommend the product accordng your usage, please kindly trust us.
7.Q: Before putting a large order,can i visit your factory?
A: Sure.Welcome at anytime.
8.Q: How can I get a sample from you to test?
A: We are honored to provide the free sample for you.
9.Q: What’s your payment terms?
A: We can accept T/T,and L/C at sight as payment term.
10.Q: What about the delivery time?
A: For sample it is about 3-5 days; We will load formal order is within 07days after receiving your payment.
11.Q: What documents you provide?
A: Usually, we provide Commercial Invoice, Packing List, Bill of loading, COA, Health certificate and Origin certificate. If your markets have any special requirements, let us know.