Keywords

• High quality 7681-57-4
• High purity 7681-57-4
• low price 7681-57-4

Quick Details

• ProName: High purity Various Specifications Sod...
• CasNo: 7681-57-4
• Molecular Formula: Na2S2O5
• Appearance: White Powder
• Application: Bio chemical
• DeliveryTime: Three to five days
• PackAge: 25kg/drum , 1kg/ bag , 1kg/ soluble ba...
• Port: Tianjin Port,Shanghai,or as the custom...
• ProductionCapacity: 200 Metric Ton/Month Metric Ton/Day
• Purity: 99%
• Storage: Store in cool & dry ,ventilated
• Transportation: We will pack and ship according to you...
• LimitNum: 10 Gram
• Moisture Content: <0.01
• Impurity: <0.1%

Superiority

1, Quality:

Our company is a professional production of intermediates and chemicals for many years, our products have exported to Germany, Spain, UK, USA, Australia, Middle East, and so on other countries, and we have got very good feedback from our customers.so you can trust us.

And we are the manufactory, so you don’t need to doubt the quality.

2, Payment method: for example T/T, D/A, L/C, Westerm Union,other

3, Service: Best service and after-sales service to all clients.

1)We will ship the goods within 5days after get your payments.If you want to cancel or change order, please tell me within 24hours after you finish the payment...So we both can make the best of the bad bargain.

2)We will ship the goods that you order from us by HKEMS, DHL, UPS, TNT and EUB.We will decided to choose which courier depend on different countries.To find the best way to delivery the goods for you.

3)As usual you can get the goods with in 4-7days.If the goods were lost or not received for other reasons, please contact us immediately.

4, Delivery:

Sample Order : As usual you can get the goods within 4-7days. We can send it via HKems, HK Air Post, DHL or other methods.

We have a professional and stable logistics, and we can deliver the package smoothly around 3 to 5 days.

Bulk Order: Shipped via sea or air, it's according to your requirement, delivery time is 7-15days after payment.

If you have any other questions to consult me,please not hesitate to contact me any times.

Details

Discription:

Molecular Formula :Na2S2O5

Molecule Weight :190.12

CAS NO .:7681-57-4

Appearance :White Free white crystalline powder

Property:  Dechlorination Sodium Metabisulfite is:

white or light yellow crystal powder, a strong smell of sulfur dioxide,relative density is 1.4, easy to dissolve in water

and glycerin, water solution. 

It has acidity,and its solubility will become large while raising the temperature and is less to dissolve in ethanol.
Appearance: Pure White Crystalline Powder .

Sodium metabisulfite is a white or yellow crystalline powder or a small crystal with a strong SO2 odor. The specific gravity is 1.4. It dissolves in water and the aqueous solution is acidic. When it comes into contact with strong acid, SO2 is released and the corresponding salt is generated. If it is left in the air for a long time, it is oxidized. As Na2S2O6, so the product can not exist for a long time. Above 150 degrees Celsius, SO2 is decomposed.

Synonyms: disodiummetabisulfite; disodiumpyrosulphite; fertisilo; metabisulfitedesodium; Sodiummetabisufite; sodiummetabisulfite(na2-s2o5); sodiumpyrosulfite(na2s2o5); Sodium dissulfite; Sodium disulphite; Sodium pyrosulphite

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).

Store the product in a cool and dry place, prevent from direct sunlight ,water and  moisture, avoid contact with strong acid,oxidants  or poisonous substances. Exposure to moisture will make it oxidze easily to sodium sulphate.Do not store it for long time.