Definition of dissociation constant in English:

dissociation constant

noun

Chemistry
  • A quantity expressing the extent to which a particular substance in solution is dissociated into ions, equal to the product of the concentrations of the respective ions divided by the concentration of the undissociated molecule.

    • ‘The relationship among the species present in solution, however, is still governed by the dissociation constant (K a) for the weak acid, acetic acid.’
    • ‘This dissociation constant is more than 100 times less than the dissociation constant for monomeric thiazole orange.’
    • ‘The dissociation constant of the complex ion is written analogously.’
    • ‘The dissociation constant of phenol, on the other hand, was determined to 0.2 mM and 0.36 mM, respectively.’
    • ‘Different types of groups are allowed for, each type being characterized by a chemical dissociation constant rather than a charge.’