A Unified pH Scale for All Phases
2011
Unified pH Scale for All Phases
publication
Author Information
Author(s): Goll SK, Himmel D, Leito I, Krossing I
Primary Institution: Albert-Ludwigs-University of Freiburg
Hypothesis
Can a unified pH scale be developed that is applicable in all phases?
Conclusion
The study introduces a unified pH scale that allows for the comparison of acidities across different media.
Supporting Evidence
- The unified pH scale is based on the absolute chemical potential of the proton.
- This scale can be used in various applications, including catalytic reactions and fuel cells.
- The study highlights the limitations of the existing GA scale in accounting for pressure-dependent speciation.
Takeaway
This study created a new way to measure acidity that works for gases, liquids, and solids, making it easier to compare them.
Methodology
Quantum chemical calculations were used to develop and apply several models for calculating acidities.
Limitations
The study points out the inadequacies of the established GA scale but does not provide specific limitations.
Digital Object Identifier (DOI)
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