Low Price and High Purity CAS 7681-57-4 Wholesale Sodium Metabisulfite/Sodium Metabisulphite Coagulant for Industrial Grade Food Ingredient

• CAS No.: 7681-57-4
• Formula: Na2s2o5
• EINECS: 231-673-0
• Purity: 96.5%Min
• Type: Sodium Sulfate
• Appearance: Powder
• Model NO.: Sodium Metabisulfite
• Grade Standard: Food Grade, Industrial Grade
• Other Name: Sodium Pyrosulfite
• Size: Customized
• Transport Package: 25kgs/Bag, 27 Tons/20′ FCL Without Pallet
• Specification: 25kgs/Bag, 27 Tons/20′ FCL Without Pallet
• Trademark: TG
• Origin: China
• HS Code: 2832100000
• Production Capacity: 50000

Product Description

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.

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

Application
1.Used as a chromatographic analysis reagent, preservative and reducing agent in the dye and pharmaceutical industries  

2.Sodium metabisulfite is more reductive than sulfite and acts similarly to sodium metabisulfite.  

Use three  

3.It is used in the food industry as a bleaching agent, preservative, loosening agent, antioxidant, color protector and freshness preservative.  

4.It is used in the pharmaceutical industry to produce chl oroform, phenylpropylsulfone and benzaldehyde.  The rubber industry is used as a coagulant.  Printing and dyeing industry used for cotton cloth after bleaching dechlorination agent, cotton cloth cooking additives.  Leather industry for leather processing, can make leather soft, plump, tough, waterproof, flexural, wear resistance and other properties.  Chemical industry for the production of hydroxyl vanillin, hydroxylamine hydrochloride and so on.  Used in the photographic industry as a developer, etc.  

5.Analysis of use.  Antiseptic agent.  Reducing agent.  antioxidants 

Packing&Delivery
25kgs/Bag, 27 Tons/20′ FCL Without Pallet


Company Profile
Hunan Iron Zirconium Import&Export Co.Ltd is a company focusing on the export of chemical products.Our company own variety of export products which are widely used in chemical, pharmaceuticals, textile printing & dyeing, leather processing, fertilizer, water treatment, construction industry, food &feed additives and other areas.We will use professional production technology to bring you the best product experience.we are looking forward to cooperating with you.