Sodium Metabisulfite (Na2S2O5) BASF Germany 25KG

৳  6,500.00

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  • Sodium metabisulfite
  • Chemical formula Na2S2O5
  • Made in Germany
  • Net Weight: 25kg
  • Brand : BASF

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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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