Oxygen Solubility in Sea Water: Thermodynamic Influence of Sea Salt

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Science  14 Jul 1967:
Vol. 157, Issue 3785, pp. 191-193
DOI: 10.1126/science.157.3785.191


Precise measurements of the solubility of oxygen in sea water show that the solubility declines exponentially with increase in salt concentration according to the empirical Setschenow relation. The deviation from linearity is nearly 0.6 percent from the fitted straight-line relations of previous workers. Our experimental data reveal that, in contrast to the effect predicted by the Debye theory, the salting-out decreases with increasing temperature.