$57525-99 Metric Ton
$550≥100Metric Ton
| Payment Type: | L/C,T/T,D/P,D/A |
| Incoterm: | FOB,CFR,CIF,EXW,DAF,DES,FAS,FCA,CPT,CIP,DEQ,DDU |
| Transportation: | Ocean,Land |
| Port: | Shanghai,Wuhan,Shenzhen |
Model No.: first grade; passed grade; and excellence grade
Place Of Origin: China
Grade: Agriculture Grade, Electron Grade, Food Grade, Industrial Grade, Medicine Grade, Reagent Grade
Apperance: white powder
Purity: 92.5%min.
Iron: 0.015%max.
Water Insolubles: 0.1%max.
| Selling Units | : | Metric Ton |
| Package Type | : | 25kg or 50kg bag |
| Picture Example | : |
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Sodium metabisulfite is prepared by saturating a solution of Sodium Hydroxide with sulfur dioxide and allowing crystallization to occur; hydrogen is passed through the solution to exclude air. Sodium metabisulfite may also be prepared by saturating a solution of sodium carbonate with sulfur dioxide and allowing crystallization to occur, or by thermally dehydrating sodium bisulfite. It is a kind of inorganic salt belonging to Inorganic Chemicals. Wuhan Ruisunny Chemical Co., Ltd has been focusing on trading of such chemicals as Calcium Hypochlorite, Trichloroisocyanuric Acid, Ammonium Bicarbonate, Sodium hydroxide, Hydrogen Peroxide and Silane etc. since 2007. We hereby have following details for the product as:
1) Basic information for the sodium metabisulfite
Product name: sodium metabisulfite
Alias: Sodium metabisulfite, SO2 58.5% min;disodiummetabisulfite;disodiumpyrosulphite;fertisilo;metabisulfitedesodium;Sodiummetabisufite;SodiumMetabisulphiteAcs;SodiumMetabisulphiteExtraPure;
CAS No. : 7681-57-4
EINECS: 231-673-0
Molecular Formula (MF): Na2S2O5
Molecular Weight (MW): 190.11
2） Physical and chemical properties
Appearance: White to slightly yellow sulphorous powder/solid
Specific density: 1.48 g/ml;
Melting Temp.: 300 Celsius degree
Product specification: 92.5-96.5% min.
Packing: 25kg or 50kg bag; or as requested.
3) Notice on Safety information:
Danger Class: 8
Risk Statements: 22-31-41-36/37/38-52;
Safety Statements: 26-39-46-36-16;
UN NO. Under IMDG: 1759/2693;
Packing Group: III
Toxicity: LD50 orally in Rabbit: 1540 mg/kg LD50 dermal Rat > 2000 mg/kg;
Safety Profile
An inhalation hazard. Poison by intravenous route. Moderately toxic by parenteral route. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of SOx and Na2O.
4) Application:
Sodium metabisulfite is widely used as an antioxidant in oral, topical, and parenteral pharmaceutical formulations; it is also widely used in food products.
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