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Geochemical Journal
Geochemical Journal An open access journal for geochemistry
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Published for geochemistry community from Geochemical Society of Japan.

Use of apparent oceanography, equilibrium constants in chemical geochemistry, and biochemistry

Ricardo M. Pytkowicz
Geochemical Journal, Vol. 3, No. 2-3, P. 181-184, 1969

ABSTRACT

At present there are two types of equilibrium constants in use for chemical reactions in concentrated multi-electrolyte solutions of geochemical and biochemical interest such as seawater, brines, and body fluids; thermodynamic and apparent (quasi-stoichiometric) constants. It will be shown that, in general, there is not enough information available for the application of thermodynamic constants to such media, because of ion association and pH changes, and that apparent constants should be used at present.

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