Limitations of ultra-violet spectroscopy for the study of the reversible hydration of carbonyl compounds

Abstract
The method of determining equilibrium constants for the reversible hydration of carbonyl compounds by ultra-violet spectroscopy has been re-examined. The assumption that εmax is solvent independent was shown to lead to serious errors in several equilibrium constants. Extrapolation methods for obtaining εmax for the unhydrated compounds in water are discussed.

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