Sodium Metabisulfite CAS 7681-57-4 for Food Bleach

Product details
1. Chemical Name:  sodium metabisulfite
2. Molecular Formula:  Na2S2O5
3. Molecular Weight:  190.107
4. CAS:  7681-57-4
5. EINECS:  231-673-0
6. Expiration: 24 months
7. Character: It is white or yellow crystalline powder or small crystal, with a strong smell of sulfuric acid, soluble in water. The aqueous solution is acidic. When it contacts with strong acid, it releases sulfuric acid and generates the corresponding salts. Keeping in air, it oxidizes to Na2S2O6, so the product cannot be stored for a long time. It is higher than 150 degrees Celsius, that is to decompose sulfuric acid.
8. Usages: It is used as preservative, bleaching agent, and swelling agent in food processing.

Product Parameter 

Test item	Standard
Assay(Na2S2O5)                ≥%	96.5
Iron(Fe)                               ≤%	0.003
Clarity	Passes test
As                                       ≤mg/kg	1.0
Heavy metals(as Pb)          ≤mg/kg	5.0

Sodium Metabisulfite CAS 7681-57-4 for Food Bleach

Packaging

Packing: 25kgs PP+PE bag or 25kgs paper bag.

Lead time: Normally it is 3-5days. It depends on your quantity and our stock.

1. 25kgs PP or kraft bag with pallets and wrapping films.

2. 25kgs cardboard drum, polyethylene bag as inner layer.

3.500/750/1000 KG jumbo bag

Customized packing is also available.

Shipping

You can choose different  transport ways as follows, by sea, air, train or express

You are welcome to visit our factory at your convenience.

1. Your inquiry will be replied within 4-8 hours. (Online service)

2. Free samples can be sent on request.

3. Small quantity is also available. The MOQ is 25kgs.

4. We have more than 8 years experience in sales and production.

5. Customized packing and production are available.

6. Your products can be delivered on time.

7. We have professional forwarders in different cities.

About us

Lianyungang Zhonghong Chemical Co., Ltd. is located in Lianyungang, Jiangsu province. It is a fine chemical enterprise based on high purity inorganic salt and food additive's R&D and production. We specialize in producing food additives, pharmaceutical auxiliaries and high purity inorganic salt series products including Ca, Mg, Zn, Fe, K, Na and other series inorganic chemicals.
We adhere to the principle of honesty and innovation, insisting on a high starting point, seeking a breakthrough in our products.

We take product quality as the foundation, customer first as the fundamental enterprise spirit, providing high quality products and excellent service for the food additive profession.

We warmly welcome customers from all over the world to cooperate with us and jointly build a splendid future!

FAQS

1. How long can I get your reply?
A: Within 4-8 hours.

2. May I get some samples?
A: Free sample can be sent on your request but express charges are on your account.

3. Is this price on the page correct?
A: The listed price is only for reference, for latest price, please contact us directly.

4. What is your delivery time?
A: 3-5 working days normally and it depneds on your quantity and our stock.

5. What is your payment term?

A: L/C at sight,T/T in advance and alibaba trade assurance.

6. May I visit your factory?

A: Welcome to visit our factory at your convenience.