Chlorine dioxide analyzer

Details Chlorine dioxide analyzer Chlorine dioxide analyzer

1978-03-03

1979-11-27

Tung, T.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

204 1T, G01N 2746

Patent

active

041760328

ABSTRACT:
A system adapted to continuously and accurately measure the concentration of chlorine dioxide dissolved in liquid, the system including a sensor immersible in the liquid being tested. The sensor is constituted by a noble-metal measuring electrode, an oxidizable-metal counter electrode and an electrolyte which together define an electrochemical cell whose output current depends on the amount of chlorine dioxide passing into the cell through a diffusion membrane permeable to chlorine dioxide but not to the liquid. The chlorine dioxide within the cell is electrochemically reduced at the surface of the measuring electrode to generate a current proportional to its concentration, the counter-electrode being oxidized to complete the cell reaction.

REFERENCES:
patent: 3235477 (1966-02-01), Keyser et al.
patent: 3528403 (1970-09-01), Imredy
patent: 3794575 (1974-02-01), Niedrach et al.
patent: 3839178 (1974-10-01), Macur
patent: 3948746 (1976-04-01), Poole

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