pHreactie
pHreactie is a term used to describe a chemical reaction whose rate or outcome depends on the acidity of the reaction medium. The pH reflects the hydrogen-ion concentration and the overall acid–base environment in which the reaction occurs. Because many reactants, intermediates and transition states carry different charges or protonation states as pH changes, the pH can influence reaction pathways, activation barriers and product distributions.
Mechanistically, pHreacties arise when proton transfer is involved in the rate-determining step, or when the speciation
Examples include acid-catalyzed hydrolysis of esters, where protonation activates the carbonyl group; base-catalyzed hydrolysis, where hydroxide
Measurement and control of pH in pHreacties typically rely on calibrated pH meters with glass electrodes, and
pHreactie is not a single chemical reaction but a category describing how pH conditions influence reaction