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Silver-silver Chloride Crystal Electrode

IP.com Disclosure Number: IPCOM000098953D
Original Publication Date: 1962-Mar-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Greyson, J: AUTHOR

Abstract

A stable, reproducible, silver-silver chloride electrode is prepared simply by inserting a hot silver or platinum wire into a silver chloride optical crystal. The assembly is rinsed in successive solutions of nitric acid, water, and ammonium hydroxide. It is then washed in water for a few minutes and finally cathodized in HCl solution. The cathodizing current is about 1.5 milliamp per electrode for about forty five minutes.

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Silver-silver Chloride Crystal Electrode

A stable, reproducible, silver-silver chloride electrode is prepared simply by inserting a hot silver or platinum wire into a silver chloride optical crystal. The assembly is rinsed in successive solutions of nitric acid, water, and ammonium hydroxide. It is then washed in water for a few minutes and finally cathodized in HCl solution. The cathodizing current is about 1.5 milliamp per electrode for about forty five minutes.

The current is then reversed and the assembly is anodized for about two minutes at a few tenths of a milliamp per electrode. Current flow and time are arbitrary. The only essential feature is that the crystal be cathodized to a greater extent than it is anodized. The resultant electrode has an extremely high degree of electrolytic symmetry, is very rugged and easy to manufacture. It can be dried for relatively long periods, polarized, even mildly damaged physically and repaired and still maintain excellent characteristics.

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