Oxygen in Water

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The solubility of oxygen in water at atmospheric pressure has 9robably been the most intensively studied gas solubility system. The work started with the early and crude measurements of Bunsen in 1855 and extends to the high precision measurements of Benson, Krause, and Peterson in 1979. The solubility may be determined by strictly physical means such as measuring P, V, and T, by chemical means via some version of the Winkler method, by gas chromatography, and via electrochemical methods using some version of the Clark electrode and polarography. The correspondence between the several approaches is surprisingly good.