preequilibrium
nounEtymology From pre- + equilibrium.
1
The initial stage of a chemical reaction when the different chemicals are beginning to interact but have not yet reached equilibrium.
- The decomposition of peroxydisulfate to sulfate radical ions was taken to be a rapid preequilibrium, and was postulated to be followed by the rate-determining reaction of a sulfate radical ion with MG to produce a radical intermediate, I.1992, International journal of chemical kinetics, page 1110:
- In cases involving multiple preequilibria (e.g., multiple substrates, induced conformational change), K.,, reveals little about each of these steps individually. In the case of allosteric interaction, characteristic kinetic behavior is...2009, Stephen J. Lippard, Current Research Topics in Bioinorganic Chemistry, Volume 18: