Reference electrode and a pair of electrodes for detecting the acidity or basicity of oil
First Claim
1. A pair of electrodes for detecting the acidity or basicity of oil in which a potential difference varies in response to the acidity or basicity of oil, comprising a reference electrode exhibiting no or little potential change in response to the acidity or basicity of oil and a responding electrode exhibiting potential change in response to the acidity or basicity of oil, said reference electrode being a metallic electrode formed of a base metal material selected from the group consisting of lead, zinc, tin, indium, cadmium, magnesium and an alloy thereof, and said responding electrode being a conductive solid electrode of a base metal material which is different from that of said reference electrode.
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Abstract
A reference electrode is formed of lead, zinc, tin, indium, cadmium, magnesium, or any alloy thereof. A pair of electrodes comprising the reference electrode and a responding electrode made of a conductive solid, when placed in oil, develop a potential difference varying with the acidity or basicity of the oil and thus enable the efficient determination of the acidity or basicity.
21 Citations
8 Claims
- 1. A pair of electrodes for detecting the acidity or basicity of oil in which a potential difference varies in response to the acidity or basicity of oil, comprising a reference electrode exhibiting no or little potential change in response to the acidity or basicity of oil and a responding electrode exhibiting potential change in response to the acidity or basicity of oil, said reference electrode being a metallic electrode formed of a base metal material selected from the group consisting of lead, zinc, tin, indium, cadmium, magnesium and an alloy thereof, and said responding electrode being a conductive solid electrode of a base metal material which is different from that of said reference electrode.
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8. A method for detecting the acidity or basicity of oil in which a potential difference varies in response to the acidity or basicity of oil, comprising:
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measuring the potential difference developed between a reference electrode and a responding electrode, wherein said reference electrode is a metallic electrode formed of a base metal material selected from the group consisting of lead, zinc, tin, indium, cadmium, magnesium and an alloy thereof; wherein said reference electrode exhibits little or no potential change in response to the acidity or basicity of oil; and wherein said responding electrode is a conductive solid electrode of a base metal material which is different from that of said reference electrode.
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Specification