Sodium metabisulfite is white or yellow crystalline powder or small crystal, with a strong SO2 odor, soluble in water, the aqueous solution is acidic, when contacted with strong acid, SO2 is released to form corresponding salts, and it is oxidized to Na2S2O6 when placed in the air for a long time. Therefore, the product cannot be stored for a long time. Above 150 degrees Celsius, SO2 is decomposed.
Specification
TEST ITEMS
TEST STANDARD
Na2S2O5 %
96.5
FERRON(Fe) %
0.005
WATER INSOLUBLE %
0.05
ARSENIC(As) %
0.0001
HEAVY METAL(Pb) %
0.0005
Application
Use 1
Used as a coagulant in the rubber industry.
Use 2
Used as chromatographic reagents, preservatives and reducing agents in the dye and pharmaceutical industries.
Use 3
In the food industry, it is used as bleaching agent, preservative, bulking agent, antioxidant, color retention agent and
preservative.
Use 4
In the printing and dyeing industry, it is used as a dechlorination agent for cotton cloth after bleaching, and as a cotton
scouring aid.
Use 5
The tanning industry is used for leather processing.
Use 6
The chemical industry is used to produce hydroxyvanillin, hydroxylamine hydrochloride, etc. The photosensitive industry is used as developer and so on.
Sodium Metabisulfite, E223,CAS no.7681-57-4, appears as a white to yellow colored powder, and is often used in beer and wine making. Sodium Metabisulfite is water soluble and has a sulfur dioxide odor, manufacturing process via chemical synthesis, sodium bisulfite as raw material. Sodium Metabisulfite functions as a preservative and antioxidant known as E223, commonly used in dried fruits, shrimp, maraschino cherries, and lemon drinks. As an experienced Sodium Metabisulfite manufacturer and supplier, we has been supplying and exporting Sodium Metabisulfite for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. Sodium Metabisulfite Specification ITEM STANDARD Appearance White or light yellow powder Content % 96.5 Heavy Metals (Fe) % 0.003 Heavy Metals( As)< % 0.0001 Charity Slightly turbid SO2 65 PH 4.0-5.0 Heavy Metals( Pb) % 0.0005
water treatment chemicals ,food preservation ,seasoning ,food additive
BASIC INFORMATION: Cas No.:7681-57-4 Molecular:Na2S2O5 molecular weight:190.10 packing: 25kg/PP bags APPLICATION: Mordant: printing and dyeing industry Bleaching agent: waste water/textile/paper pulp/bamboo/timber Rubber solidifying agent Hydrocarbon perfume aldehyde: perfume industry
Sodium Metabisulfite Sodium metabisulfite or sodium pyrosulfite is an inorganic compound of chemical formula Na2S2O5. The substance is sometimes referred to as disodium. It is used as a disinfectant, antioxidant and preservative agent.
Certificate of A nalysis of Industrical Grade Industrical grade Standard Results Content ( as Na 2 S2O 5 ) %Y 96.5 97. 2 Phase White or light yellow crystalline powder White or light yellow crystalline powder Appearance of solution - Colorless and transparent Nacl %¨¹ - 0.02 Iron ( as Fe ) 0.005 0.0009 Arsenic ( as As ) %¨¹ 0.0001 0.0001 Heavy metal¡ê¡§as Pb¡ê©% ¨¹ 0.0005 0.0005 PH Value 4.0-4.6 4.48 Water Insoluble %¨¹ 0.05 0.03 SODIUM METABISULFITE Items Index Molecular Formula Na 2 S 2 O 5 Molecular Weight 190.10 Appearance white crystal powder Packing polypropylene weaving bag, paper plastic complex bag and kraft lined with polyethylene plastic bag Net weight 25, 50, 1000 kilograms per bag or according to demands from customers HS Code 2832100000 20GP 25 tons/25kg bag 24 tons/1000kg bag
Certificate of A nalysis of Industrical Grade Industrical grade Standard Results Content ( as Na 2 S2O 5 ) % 96.5 97. 2 Phase White or light yellow crystalline powder White or light yellow crystalline powder Appearance of solution - Colorless and transparent Nacl - 0.02 Iron ( as Fe ) 0.005 0.0009 Arsenic ( as As ) 0.0001 0.0001 Heavy metal 0.0005 0.0005 PH Value 4.0-4.6 4.48 Water Insoluble 0.05 0.03 SODIUM METABISULFITE Items Index Molecular Formula Na 2 S 2 O 5 Molecular Weight 190.10 Appearance white crystal powder Packing polypropylene weaving bag, paper plastic complex bag and kraft lined with polyethylene plastic bag Net weight 25, 50, 1000 kilograms per bag or according to demands from customers HS Code 2832100000 20GP 25 tons/25kg bag 24 tons/1000kg bag
Classification: sulphate type: sodium metabisulfite cas no.: 7681-57-4 other names: sodium pyrosulfite mf: na2s2o5 einecs no.: 231-555-9 place of origin: shandong, china (mainland) grade standard: agriculture grade, electron grade, food grade, industrial grade, other purity: 98% appearance: white crystal application: food or industry brand name: blue ribbon model number: br-003 classification: sulphate mf: na2s2o5 grade standard: agriculture, industry, electron, food grade brand name: blue ribbon type: sodium metabisulfite einecs no: 231-555-9 purity: 97%, 97.2%, 98% model number: br-003 cas no: 7681-57-4 appearance: white crystal 1.Color:light yellow or white fine crystal 2.Purity: 97%, 97.2% , 98% 3.Packing:25kg/50kg bag or pallet avaliable.
ItemsSpecification Purity96.5% SO265%min As 5 ppm max Fe50ppm max Pb10 ppm max Cd10 ppm max Water Insolubles0.05%max PH4-5 25KGS PP WOVEN BAG
Classification: Other Inorganic Salts CAS No.: 7681-57-4 Other Names: Sodium Pyrosulfite MF: Na2S2O5 EINECS No.: 231-673-0 Place of Origin: Hebei China (Mainland) Grade Standard: Food Grade, Industrial Grade Purity: 97% Appearance: White to yellow white free flowing Application: Food preservative; Mining; Water treatement plants Brand Name: HSM Model Number: Sodium Metabisulfite 64% color: White or light yellow crystalline powder. Packaging Detail:25kg or 50kg pp bag ,25 tons in one 20ft.
