Kinetics and Catalysis

, Volume 43, Issue 3, pp 295–302 | Cite as

Determination of the Rate Constants from Phase Delay Effect in Chemical Reactions

  • A. Krupska
  • J. Konarski
  • R. Fiedorow
  • J. Adamiec


A new method for the determination of rate constant k of a reaction of the type A + X → P1 + P2 is presented. The method is based on the phase delay between the oscillatory inflow of the parent substance X into the reaction medium and the concentration of the parent substance in the field changing as a result of the reaction, which can be expressed as tan φ = \(\frac{{2{\omega }}}{{kA}}\). A method was used for the determination of the rate constant of the saponification of ethyl acetate (reactant A) with sodium hydroxide (reactant X) at 17°C. Reactant A was used in excess with respect to reactant X, which ensured its constant concentration.


Sodium Acetate Physical Chemistry Ethyl Hydroxide 
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Copyright information

© MAIK “Nauka/Interperiodica” 2002

Authors and Affiliations

  • A. Krupska
    • 1
  • J. Konarski
    • 1
  • R. Fiedorow
    • 3
  • J. Adamiec
    • 2
  1. 1.Faculty of Chemistry, Department of Theoretical ChemistryAdam Mickiewicz UniversityPoznanPoland
  2. 2.Institute of Molecular Physics of the Polish Academy of SciencesPoznanPoland
  3. 3.Faculty of Chemistry, Department of Heterogeneous CatalysisAdam Mickiewicz UniversityPoznanPoland

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