Abstract: Apparatus for performing electrochemical experiments in a laboratory for teaching the principles thereof is disclosed. The apparatus includes a holder unit, having a plurality of fluid-receiving recesses, and ion-conductive elements or substances, formed from a plant material having sufficient capillary action to permit ion travel therethrough. One recess receives an electrolytic solution, any remaining two recesses receive metallic salt solutions, and an ion-conductive substance is placed to extend from immersion in each salt solution to the electrolyte solution, forming in conjunction with the electrolytic solution an ion-conducting electrolyte bridge. Thin strips of a metal element are partially immersed in each reactant solution to initiate oxidation-reduction reactions, creating dissimilar electrodes forming a galvanic cell.
Type:
Grant
Filed:
December 16, 1982
Date of Patent:
September 18, 1984
Assignee:
Freeman, Cooper & Company
Inventors:
William H. Freeman, Karl J. Abrams, Manus B. Monroe