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Sodium Metabisulfite (Na2S2O5) BASF Germany 25KG
৳8,938
- Sodium metabisulfite
- Chemical formula Na2S2O5
- Made in Germany
- Net Weight: 25kg
- Brand : BASF
In stock
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- Sodium metabisulfite or sodium pyrosulfite (IUPAC spelling; Br. E. sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na2S2O5. The substance is sometimes referred to as disodium(metabisulfite).
- It is used as a disinfectant, antioxidant and preservative agent.
- Sodium metabisulfite appears as a white crystalline or powder solid with a slight sulfur odor. Toxic by inhalation . Strongly irritates skin and tissue. Noncombustible, but may decompose to emit toxic oxide fumes of sulfur and sodium when heated to high temperature. A corrosive acid when mixed with water. Used as a food preservative and as a laboratory reagent.
- Sodium disulfite can be prepared by treating a solution of sodium hydroxide with sulfur dioxide.[3] When conducted in warm water, Na2SO3 initially precipitates as a yellow solid. With more SO2, the solid dissolves to give the disulfite, which crystallizes upon cooling.[4]
- SO2 + 2 NaOH → Na2SO3 + H2O
- SO2 + Na2SO3 → Na2S2O5
which yields a residue of colorless solid Na2S2O5.
Additional information
| Weight | 25 kg |
|---|
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