Electrochemical oxygen detector
Abstract
Abstract AN ELECTROCHEMICAL OXYGEN DETECTOR WHICH IS USEFUL IN A SULFUROUS ENVIRONMENT CONTAINS A METAL SULFIDE, SUCH AS NICKEL, TUNGSTEN OR COBALT SULFIDE, AS A CATHODE. THE ANODE IS DESIRABLY SILVVER SULFIDE. A DETECTOR HAVING A NICKEL SULFIDE OR A TUNGSTEN SULFIDE CATHODE AND A SILVER SULFIDE ANODE IS READILY FORMED DURING USE IN A POLLUTED ENVIRONMENT FROM A DETECTOR HAVING A NICKEL OR A TUNGSTEN CATHODE AND A SILVER ANODE WITHOUT SUBSTANTIAL VARIA- TION IN RESPONSE CHARACTERISTICS. THE ELECTRLYTE IS DESIRABLY POTASSIUM CHLORIDE IN WATER CONTAINING A CHELATING AGENT FOR REDUCIBLE METAL IONS, FOR EXAMPLE SODIUM POTASSIUM TARTRATE, A BUFFER TO MAINTAIN THE PH IN EXCESS OF 5, AND A DELIQUESCENT AGENT, E.G. A MIXTURE OF POTASSIUM DIHYDROGEN PHOSPHATE AND DISODIUM HYDROGEN PHOSPHATE DIHYDRATE.
Inventors
- 👤 J Millot
- 👤 M Hitchman
- 👤 W Mehl
Bibliographic Details
Claims Analysis
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| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |