| 摘要 |
PURPOSE:To eliminate the generation of gas and to suppers the penetration of an electrode liquid due to diffusion, by a method wherein an anode and a cathode are formed of a base metal and a reversible electrode respectively, an organic electrolyte having low mobility is used as the electrode liquid and an ion exchange membrane is adopted for diaphragms of the anode and the cathode. CONSTITUTION:In an electrophoretic tank 1, opposite walls are formed of diaphragms 2a and 3a, and an anode chamber 2 and a cathode chamber 3 are provided with a prescribed space between them. The diaphragm 2a is formed of a cation exchange membrane which is prepared by polymerization using polytetrafluoroethylene (PTFE) as a base and a carboxylic acid as an exchange group and has a transference number of 0.95. The diaphragm 3a is formed of an anion exchange membrane which is prepared by polymerization using PTFE as the base and a fourth-grade ammonium group as the exchange group and has a transference number of 0.95. Then, an anode 4 formed of a base metal such as Fe is provided in the anode chamber 2, while a cathode 5 constituted by a reversible electrode formed of AgCl or the like is provided in the cathode chamber 3. An anode liquid 6 and a cathode liquid 7 constituted by an organic electrolyte of low mobility and having prescribed properties are used for the anode chamber 2 and the cathode chamber 3 respectively. |
