Electrolytic Generation of Manganese (III) Ions in Strong Sulfuric Acid Using an Improved Anode
AssigneeMacDermid Enthone Inc.
InventorsTrevor Pearson, Terrence Clark, Roshan V. Chapaneri
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Abstract
An electrolytic cell and a method of electrochemical oxidation of manganese(II) ions to manganese(III) ions in the electrolytic cell are described. The electrolytic cell comprises (1) an electrolyte solution of manganese(II) ions in a solution of 9 to 15 molar sulfuric acid; (2) a cathode immersed in the electrolyte solution; and (3) an anode immersed in the electrolyte solution and spaced apart from the cathode. Various anode materials are described including vitreous carbon, reticulated vitreous carbon, and woven carbon fibers.
Claims17
An electrolytic cell comprising:
- an electrolyte solution comprising manganese(III) ions in a solution of acid;
- a cathode in contact with the electrolyte solution;
- and
- an anode in contact with the electrolyte solution, wherein the anode comprises a material selected from the group consisting of vitreous carbon, reticulated vitreous carbon, woven carbon fibers, and combinations of one or more of the foregoing.
10-30. (canceled)
A method of etching a plastic part wherein said method comprises contacting the plastic part with a solution comprising a metastable complex of manganese(III) ions and acid.
Dependencies are inferred from the claim text.