TITLE:
Formulation of the System of Isohydric Solutions
AUTHORS:
Tadeusz Michałowski, Agustin G. Asuero
KEYWORDS:
Isohydric Solutions; pH Titration
JOURNAL NAME:
Journal of Analytical Sciences, Methods and Instrumentation,
Vol.2 No.1,
March
13,
2012
ABSTRACT: The isohydricity (pH constancy) as the property referred to mixtures of acids or bases, is illustrated on a simple example of the solutions: HL (C0, mol/L) and HL (C mol/L) mixed according to titrimetric mode (pH titration). A new derivation of the Michalowski formula C0=C+C2·10PK1 expressing this property is presented, and its applicability for determination of pK1 = – logK1 value is indicated. The principle of the isohydric method of pK1 determination is also outlined.