Sodium Metabisulfite

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

Sodium Metabisulfite Type: Food Additives Origin: China CAS No.: 7681-57-4 AUCO No.: 363 Packing: 25kg bag/1000kg bag

Items Standard Sodium metabisulfite % 97 min Water insoluble % 0.01 max Fe % 0.002 max As % 0.00006 max Heavy Metals(Pb) % 0.0003 max PH value 4.0-4.6

Items Standard Sodium metabisulfite % 97 min Water insoluble % 0.01 max Fe % 0.002 max As % 0.00006 max Heavy Metals(Pb) % 0.0003 max PH value 4.0-4.6

Sodium metabisulfite FCC/Photo Grade is a natural compound that can be used as a preservative, antioxidant, bleach, color fixative and leavening agent in both industrial and food applications. It is used as an antioxidant/reducing agent in photographic film, a corrosion inhibitor in the oil/gas industry, a bleaching agent in coconut cream, and a laboratory reagent. It is utilized in gold precipitation to eliminate chromium. Sodium Metabisulfite FCC/Photo Grade is mainly used for food applications; it functions by reacting with oxidizing agents and preventing oxidation and browning of food products. It also inhibits the growth of bacteria, yeast, and mold. It's used in canned mushrooms, candied, vermicelli, and other products to whiten them, keep them fresh, and extend their shelf life. It is used in shrimp, maraschino cherries, lemon drinks, and other products to preserve their color and prevent discoloration. It's also used in wine, beer, juice, and other beverages to prevent spoilage and fermentation, and to enhance their flavor and clarity and in biscuit, baked food, and bread to act as a leavening agent and to improve their texture and volume. Sodium metabisulfite is food grade and meets the standards of the Food Chemical Codex (FCC). Sales Specification Appearance: White or slightly yellow crystal powder Assay (Na2S2O5): 97% Insoluble in water: 0.03% Arsenic: 0.002% Heavy Metal as Pb: 0.001% As: 0.0002% Cd: 0.0001% Fe:0.005% pH: 4.0-4.6 Packing 50 lb bag , 44 bags per pallet