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Basic Remarks on Acidity
DOI:10.1002/anie.201709057.png)
Abstract
En 中文
This Review provides a unified view on BrOnsted acidity. For this purpose, a brief overview of the concepts acidity, acid strengths, and pH value is given, including problems, proposed solutions, and the use of the pH(abs)/pHabsH2O scale as a unifying concept. Thereafter, some examples of the accessibility and application of unified pH(abs) values are given. The Review is rounded off with the analogy of acid-base chemistry to redox chemistry with the introduction of the unified redox scale pe(abs). The combination of pH(abs) and pe(abs) values in the protoelectric potential map (PPM), as elaborated in ongoing studies on the thermochemistry of single ions, provides a means to classify and to compare all possible acid-base/redox reactions in a medium-independent and, thus, unified fashion.
Keywords:
BrOnsted acidity
chemical potential
pe value
pH value
reducity
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