Specimens of metals, produced by electrolysis, prepared by Bunsen and Matthiesen, 1856-1885

Made:
1856-1885
preparer:
Robert Wilhelm Bunsen

Wooden box containing seven specimens of elements prepared by Bunsen and Matthiesen, 1856-1885

Electrochemical methods are widely used for both the extraction and refining of metals. In the simplest processes the metal is dissolved as positive ions in a liquid electrolyte, which conducts ions, and is subjected to an electric field applied between two electrodes immersed in the electrolyte.The positive metal ions migrate to the negative electrode where the metal is deposited. The amount of electricity required is given by Faraday's Law.

Details

Category:
Experimental Chemistry
Object Number:
1915-315
Materials:
element, felt, glass, metal and wood
type:
strontium
credit:
Tilden, Sir William Augustus