Unified pH Measurements of Ethanol, Methanol, and Acetonitrile, and Their Mixtures with Water.

ABSTRACT: Measurement of pH in aqueous-organic mixtures with different compositions is of high importance in science and technology, but it is, at the same time, challenging both from a conceptual and practical standpoint. A big part of the difficulty comes from the fundamental incomparability of conventional pH values between solvents (spH, solvent-specific scales). The recent introduction of the unified pH (pHabs) concept opens up the possibility of measuring pH, expressed as pHabsH2O, in a way that is comparable between solvent, and, thereby, removing the conceptual problem. However, practical issues remain. This work presents the experience of the authors with measuring pHabsH2O values in mixtures of methanol, ethanol, and acetonitrile, with water, but without the presence of buffers or other ad

SUBMITTER: Deleebeeck L 

PROVIDER: S-EPMC8201227 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature