6533b856fe1ef96bd12b2897
RESEARCH PRODUCT
A series expansion of the extended Debye-H�ckel equation and application to linear prediction of stability constants
Guillermo Ramis-ramosJ. J. Baeza Baezasubject
Activity coefficientSeries (mathematics)ChemistryThermodynamicsLinear predictionAnalytical Chemistrysymbols.namesakeIonic strengthComputational chemistryDebye–Hückel equationLinear regressionPhysics::Atomic and Molecular ClusterssymbolsSeries expansionEquilibrium constantdescription
The Debye-Hückel semiempirical extended equation is frequently used to calculate activity coefficients of chemical species and equilibrium constants at ionic strengths different from those used in their experimental evaluation. A series expansion of the extended Debye-Hückel equation is proposed here and checked with experimental data taken from the literature. The expansion is linear in the ionic parameters and yields a geometrical series which converges rapidly and that enables the accurate calculation of interpolated and extrapolated activity coefficients and equilibrium constants by simple and multiple linear regression without previous knowledge of the ionic parameters.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-09-01 | Talanta |