The Science Company, NC-10319, Sodium Metabisulfite, 500g



Brand: The Science Company

  • Chemical Grade: Technical
  • Formula: Na2S2O5
  • CAS: 7681-57-4

Sodium metabisulfite is commonly used to precipitate dissolved gold out of aqua regia and gold chloride solutions. When it is dissolved into water, Sulfur dioxide gas is created which is excellent at precipitating gold from the solution. Sodium metabisulfate is a popular choice in this process because it is more selective in precipitating gold by itself. In the process of gold extraction from e-waste, Sodium Metabisulfate is usually used along with Urea.

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