Sulfate protonation in sodium chloride and sodium perchlorate media
Vielma, Tuomas; Hefter, Glenn (2022-07-12)
Springer Nature
12.07.2022
Vielma, T., Hefter, G. Sulfate Protonation in Sodium Chloride and Sodium Perchlorate Media. J Solution Chem 51, 962–969 (2022). https://doi.org/10.1007/s10953-022-01179-7
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© The Author(s) 2022. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2022082656396
https://urn.fi/URN:NBN:fi-fe2022082656396
Tiivistelmä
Abstract
The equilibrium (association) constant, KA, for the first protonation of the sulfate ion in aqueous solution: \([\text{H}^{+}(\text{aq}) + \text{SO}^{2−}_{4}(\text{aq}) ⇌ \text{HSO}^{−}_{4}(\text{aq})]\) has been measured at 298.15 K in NaCl and NaClO₄ media using glass-electrode potentiometry at five ionic strengths in the range 0.5 ≤ I/(mol·dm−3) ≤ 5.0. The present KA values vary smoothly with I and are in good agreement with reliable literature data but indicate that the previously reported value of KA at I = 5 mol·dm−3 in NaClO₄ media is in error.
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