High Purity and Quality Food and Feed Grade Sodium Metabisulfite CAS 7681-57-4

• CAS No.: 7681-57-4
• Formula: Na2s2o5
• EINECS: 231-673-0
• Model NO.: FOOD PRESERVATIVE
• Packaging Material: Plastic
• Storage Method: Normal
• Shelf Life: >12 Months
• Resource: Natural
• Appearance: White Powder
• Application: Food/Feed/Tech
• Transport Package: PP-PE Bag
• Specification: 25kg
• Trademark: EASTAR
• Origin: China
• HS Code: 28321000
• Production Capacity: 5000mt/Year

Product Description

Sodium metabisulfite  is a white or yellow crystalline powder or small crystal with a strong SO2 odor, a specific gravity of 1.4, soluble in water, and the aqueous solution is acidic. When it is in contact with a strong acid, it releases SO2 to form a corresponding salt. When it is left in the air, it oxidizes. It is Na2S2O6, so the product cannot be stored for a long time. Above 150 degrees Celsius, SO2 is decomposed.

Analysis of certificate:

INDEX OF SODIUM METABISULFITE	CONTENT
	FOOD GRADE	INDUSTRIAL GRADE
PURITY (AS NA2S2O5)	97%MIN	96%MIN
SO2	65.0%MIN	65%MIN
AS	0.0002% MAX	-
HEAVY METALS (AS Pb)	0.0005% MAX	-
SE	0.0005% MAX	-
IRON (Fe)	0.001% MAX	0.002% MAX
WATER TREATMENT	0.02% MAX	0.05% MAX
PH VALUE	4.0-4.8	4.0-4.8
PURITY (AS NA2S2O5)	97% MIN	96% MIN

 

(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).

(2) Industry Grade: Mordant of printing and dyeing; Dechlorinate of textile after bleaching; Sulphonated agent and reducer of chemical industry and pharmacy; Bleach of paper pulp, bamboo and timber bleach of Stap; Treatment agent of waste water; Rubber solidifying agent Perfume industry is served as hydro carbon perfume aldehyde
The hide profession employ to do to molt dose and pliable dose and wearproof dose; sewage treatment, and so on .

(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.

 

 

Henan Eastar Chem. & Tech. Co., Ltd. is a professional and comprehensive distributor of chemical products,such as Sodium Thiosulphate, Glycerol Monostearate, Sodium Diacetate, etc. Having been engaged in the international business for 20 years, we are fully experienced and have a perfect quality control system. With decades' of devotion to our work, our professional service has won a good reputation among our cooperating partners at home and abroad.
 

• 1) Can we print our logo on the product ?
  Of course, we can do it. Just send us your logo design.
• 2) Do you accept small orders ?
  Yes. If you are a small retailer or starting up business,We are definitely willing to grow up with you. And we are
  looking forward to co-work with you for a long term relationship.
• 3) How about the price? Can you make it cheaper ?
  We always take the customer's benefit as the top priority. Price is negotiable under different conditions, we are
  assuring you to get the most competitive price.
• 4) Do you offer free samples ?
  A 5Stars Review = A Free Sample
  It's appreciated that you could write us positive reviews if you like our products and service, we will offer you some
  free samples on your next order.
• 5) Are you able to deliver on time?
  Of course!we specialised in this line for many years,many customer make a deal with me because we can deliver
  the goods on time and keep the goods top quality!
• 6) What are your payment terms ? Any third party payment ?
  We usually accept T/T,trade assurance, Western Union, L/C.
• 7) Can I visit your company and factory in China?
  Sure. You are very welcomed to visit our company 
• 8) How Can I place an order ?
  You could just send us inquiry to any of our sales representatives to get detailed order information, and we will
  explain the detail process.