Method of determining pH by the alkaline absorption of carbon di

Details Method of determining pH by the alkaline absorption of carbon di Method of determining pH by the alkaline absorption of carbon di

1991-09-04

1992-10-06

Housel, James C.

Chemistry: analytical and immunological testing

Optical result

Including gas absorption in liquid or solid

436 34, 436131, 436133, 436163, 436167, 73 6141, 73 191, G01N 2175

Patent

active

051531410

ABSTRACT:
A method for measuring the concentration of hydroxides in alkaline solutions in a remote location using the tendency of hydroxides to absorb carbon dioxide. The method includes the passing of carbon dioxide over the surface of an alkaline solution in a remote tank before and after measurements of the carbon dioxide solution. A comparison of the measurements yields the absorption fraction from which the hydroxide concentration can be calculated using a correlation of hydroxide or pH to absorption fraction.

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patent: 3716337 (1973-02-01), Jones
patent: 3867097 (1975-02-01), Vurek
patent: 4663724 (1987-05-01), Onizuka et al.
patent: 4677060 (1987-06-01), Valet et al.
patent: 4851195 (1989-07-01), Matthews et al.

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