{"title":"Thermodynamic Properties of Chlorine Dioxides and Chlorite Ions","authors":"G. Schmitz","doi":"10.1063/5.0157581","DOIUrl":null,"url":null,"abstract":"An analysis of experimental measurements of the properties of chlorine dioxide gives ΔfG°(OClO·, g) = 116.3 ± 2.0, ΔfH°(OClO·, g) = 98.5 ± 2.0 kJ mol−1, ΔfG°(ClOO·, g) = 112.5 ± 1.5, and ΔfH°(ClOO·, g) = 98.3 ± 1.5 kJ mol−1. An analysis of OClO· solubility measurements gives Ksol = 1.01 ± 0.15 mol l−1 atm−1, ΔsolH = −28.9 ± 1.5 kJ mol−1, and ΔsolS = −96.9 ± 4 J mol−1 K−1. The uncertainties provided in this paper are expanded uncertainties U or 2 σ (95% confidence internal). These results and the redox potential E°(OClO·, aq/ClO2−, aq) = 0.935 ± 0.02 V give ΔfG°(ClO2−, aq) = 26.1 ± 4.0 kJ mol−1, value significantly larger than the value in the NBS Tables of Chemical Thermodynamic Properties.","PeriodicalId":16783,"journal":{"name":"Journal of Physical and Chemical Reference Data","volume":" ","pages":""},"PeriodicalIF":4.4000,"publicationDate":"2023-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Physical and Chemical Reference Data","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1063/5.0157581","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
An analysis of experimental measurements of the properties of chlorine dioxide gives ΔfG°(OClO·, g) = 116.3 ± 2.0, ΔfH°(OClO·, g) = 98.5 ± 2.0 kJ mol−1, ΔfG°(ClOO·, g) = 112.5 ± 1.5, and ΔfH°(ClOO·, g) = 98.3 ± 1.5 kJ mol−1. An analysis of OClO· solubility measurements gives Ksol = 1.01 ± 0.15 mol l−1 atm−1, ΔsolH = −28.9 ± 1.5 kJ mol−1, and ΔsolS = −96.9 ± 4 J mol−1 K−1. The uncertainties provided in this paper are expanded uncertainties U or 2 σ (95% confidence internal). These results and the redox potential E°(OClO·, aq/ClO2−, aq) = 0.935 ± 0.02 V give ΔfG°(ClO2−, aq) = 26.1 ± 4.0 kJ mol−1, value significantly larger than the value in the NBS Tables of Chemical Thermodynamic Properties.
期刊介绍：
The Journal of Physical and Chemical Reference Data (JPCRD) is published by AIP Publishing for the U.S. Department of Commerce National Institute of Standards and Technology (NIST). The journal provides critically evaluated physical and chemical property data, fully documented as to the original sources and the criteria used for evaluation, preferably with uncertainty analysis. Critical reviews may also be included if they document a reference database, review the data situation in a field, review reference-quality measurement techniques, or review data evaluation methods.
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