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|Title:||Derivation of el'Yanov and Hamann's empirical formula and another new formula for pressure dependence of ionization constants|
|Publisher:||The Physico-Chemical Society of Japan|
|Journal title:||The Review of Physical Chemistry of Japan|
|Abstract:||El'yanov and Hamann's empirical formula for the pressure dependence of the ionization constant, RTln(K_p/K_0)=-ΔV^^-_o^0P/(1+bP) has been derived theoretically from the Born model for ionic salvation by taking account of the pressure dependence of the dielectric constant of water. Although b does not depend on temperature and is equal to 9.20×10^-5bar^-1 according to El'yanov and Hamann, the present derivation shows that b depends on temperature, being 8.98, 9.46 and 11.67×10^-5bar^-1 at 15.25 and 45℃, respectively. Another new formula for the pressure dependence of the ionization constant has been also obtained, which becomes equal to Owen-Brinkley's formula under some condition. All the formulas proposed by several authors until now have been compared, and their similarities and differences are discussed.|
|Appears in Collections:||Vol.44 No.2|
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