| Bulk Gas-Phase Acidity. | |
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MedLine Citation:
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PMID: 22730176 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The capability of a gaseous Brønsted acid HB to deliver protons to a base is usually described by the gas-phase acidity (GA) value of the acid. However, GA values are standard Gibbs energy differences and refer to individual gas pressures of 1 bar for acid HB, base B(-) , and proton H(+) . We show that the GA value is not suited to describe the bulk acidity of a gaseous acid. Here the pressure dependence of the activities of HB, H(HB)(n) (+) , and B(HB)(m) (-) that result from gaseous autoprotolysis have to be considered. In this work, the pressure-dependent absolute chemical potential of the proton in the representative gaseous proton acids CH(4) , NH(3) , H(2) O, HF, and HCl was worked out and the general theory to describe bulk gas phase acidity-that can directly be compared with solution acidity-was developed. |
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Authors:
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Daniel Himmel; Sascha K Goll; Ivo Leito; Ingo Krossing |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-6-21 |
Journal Detail:
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Title: Chemistry (Weinheim an der Bergstrasse, Germany) Volume: - ISSN: 1521-3765 ISO Abbreviation: - Publication Date: 2012 Jun |
Date Detail:
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Created Date: 2012-6-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9513783 Medline TA: Chemistry Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
Affiliation:
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Institut für Anorganische und Analytische Chemie, Freiburger Materialforschungszentrum (FMF) and, Freiburg Institute for Advanced Studies (FRIAS), Universität Freiburg, Albertstrasse 19, 79104 Freiburg (Germany). |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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