Reaction between Chromium(III) and EDTA ions: An Overlooked Mechanism of Case Study Reaction of Chemical Kinetics
Existing explanations of reaction mechanism of case study reaction of chemical kinetics between Cr(III) ions and ethylenediaminetetraacetic acid (EDTA) contradicts to modern chromium(III) coordination chemistry data. Absorption UV and visible light spectra were therefore recorded during the reaction...
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| Format: | Article |
| Language: | English |
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Slovenian Chemical Society
2015-08-01
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| Series: | Acta Chimica Slovenica |
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| Online Access: | https://journals.matheo.si/index.php/ACSi/article/view/1492 |
| _version_ | 1819069755929133056 |
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| author | Janez Cerar |
| author_facet | Janez Cerar |
| author_sort | Janez Cerar |
| collection | DOAJ |
| description | Existing explanations of reaction mechanism of case study reaction of chemical kinetics between Cr(III) ions and ethylenediaminetetraacetic acid (EDTA) contradicts to modern chromium(III) coordination chemistry data. Absorption UV and visible light spectra were therefore recorded during the reaction between aqueous solution of Cr(NO3)3 and EDTA in order to obtain a new insight into this reaction. Analysis of the obtained spectra showed that only very small fraction of intermediates can be present in solution during course of the reaction. The reaction scheme was established and according to it a simplified model calculations carried out using literature data constants when available and adjusted values of their sound estimates when they were missing. Reasonable agreement of model calculations with experimental data was obtained at pH values of 3.8 and 4.5 but the model failed to reproduce measured rate of reaction at pH 5.5, probably due to use of oversimplified model. |
| first_indexed | 2024-12-21T16:55:05Z |
| format | Article |
| id | doaj.art-7e841a3e857f4d9daa162af1d930b90b |
| institution | Directory Open Access Journal |
| issn | 1318-0207 1580-3155 |
| language | English |
| last_indexed | 2024-12-21T16:55:05Z |
| publishDate | 2015-08-01 |
| publisher | Slovenian Chemical Society |
| record_format | Article |
| series | Acta Chimica Slovenica |
| spelling | doaj.art-7e841a3e857f4d9daa162af1d930b90b2022-12-21T18:56:46ZengSlovenian Chemical SocietyActa Chimica Slovenica1318-02071580-31552015-08-0162353854510.17344/acsi.2015.1492286Reaction between Chromium(III) and EDTA ions: An Overlooked Mechanism of Case Study Reaction of Chemical KineticsJanez Cerar0Faculty of Chemistry and Chemical Technology University of Ljubljana Večna pot 113 SI–1000 Ljubljana SloveniaExisting explanations of reaction mechanism of case study reaction of chemical kinetics between Cr(III) ions and ethylenediaminetetraacetic acid (EDTA) contradicts to modern chromium(III) coordination chemistry data. Absorption UV and visible light spectra were therefore recorded during the reaction between aqueous solution of Cr(NO3)3 and EDTA in order to obtain a new insight into this reaction. Analysis of the obtained spectra showed that only very small fraction of intermediates can be present in solution during course of the reaction. The reaction scheme was established and according to it a simplified model calculations carried out using literature data constants when available and adjusted values of their sound estimates when they were missing. Reasonable agreement of model calculations with experimental data was obtained at pH values of 3.8 and 4.5 but the model failed to reproduce measured rate of reaction at pH 5.5, probably due to use of oversimplified model.https://journals.matheo.si/index.php/ACSi/article/view/1492Hexaaquachromium(III) ionEDTAUV/Vis spectrophotometryreaction mechanismchemical kinetics |
| spellingShingle | Janez Cerar Reaction between Chromium(III) and EDTA ions: An Overlooked Mechanism of Case Study Reaction of Chemical Kinetics Acta Chimica Slovenica Hexaaquachromium(III) ion EDTA UV/Vis spectrophotometry reaction mechanism chemical kinetics |
| title | Reaction between Chromium(III) and EDTA ions: An Overlooked Mechanism of Case Study Reaction of Chemical Kinetics |
| title_full | Reaction between Chromium(III) and EDTA ions: An Overlooked Mechanism of Case Study Reaction of Chemical Kinetics |
| title_fullStr | Reaction between Chromium(III) and EDTA ions: An Overlooked Mechanism of Case Study Reaction of Chemical Kinetics |
| title_full_unstemmed | Reaction between Chromium(III) and EDTA ions: An Overlooked Mechanism of Case Study Reaction of Chemical Kinetics |
| title_short | Reaction between Chromium(III) and EDTA ions: An Overlooked Mechanism of Case Study Reaction of Chemical Kinetics |
| title_sort | reaction between chromium iii and edta ions an overlooked mechanism of case study reaction of chemical kinetics |
| topic | Hexaaquachromium(III) ion EDTA UV/Vis spectrophotometry reaction mechanism chemical kinetics |
| url | https://journals.matheo.si/index.php/ACSi/article/view/1492 |
| work_keys_str_mv | AT janezcerar reactionbetweenchromiumiiiandedtaionsanoverlookedmechanismofcasestudyreactionofchemicalkinetics |