Thermodynamic Stability Areas of Polyvanadates of Alkaline Earth Metals
A thermodynamic method of the global Gibbs energy variation calculation for describing heterogeneous equilibria of transformations of calcium, strontium, and barium polyvanadates, that occur in systems MeO-V2O5-H2O, where Me is the alkaline earth element, has been developed and used. Its quintessenc...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2019/7091781 |
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| author | Igor Povar Inga Zinicovscaia Oxana Spinu Boris Pintilie |
| author_facet | Igor Povar Inga Zinicovscaia Oxana Spinu Boris Pintilie |
| author_sort | Igor Povar |
| collection | DOAJ |
| description | A thermodynamic method of the global Gibbs energy variation calculation for describing heterogeneous equilibria of transformations of calcium, strontium, and barium polyvanadates, that occur in systems MeO-V2O5-H2O, where Me is the alkaline earth element, has been developed and used. Its quintessence consists in the thermodynamic analysis of the real conditions of various processes on the basis of their total thermodynamic characteristics. On the basis of the selected thermodynamic data for involved species, the thermodynamic stability areas of solid polyvanadates towards the solution pH and vanadium and alkaline earth metal ion concentrations in heterogeneous mixtures have been established, taking into account the complex formation reactions in multicomponent heterogeneous systems. The existing experimental data confirm the results on the thermodynamic stability of polyvanadates obtained in this paper. |
| format | Article |
| id | doaj-art-3b2f1fdf78614e5e8fb5fbc7eba5bada |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-3b2f1fdf78614e5e8fb5fbc7eba5bada2025-02-03T01:30:51ZengWileyJournal of Chemistry2090-90632090-90712019-01-01201910.1155/2019/70917817091781Thermodynamic Stability Areas of Polyvanadates of Alkaline Earth MetalsIgor Povar0Inga Zinicovscaia1Oxana Spinu2Boris Pintilie3Institute of Chemistry, 3 Academiei Str., MD 2028, Chisinau, MoldovaInstitute of Chemistry, 3 Academiei Str., MD 2028, Chisinau, MoldovaInstitute of Chemistry, 3 Academiei Str., MD 2028, Chisinau, MoldovaInstitute of Chemistry, 3 Academiei Str., MD 2028, Chisinau, MoldovaA thermodynamic method of the global Gibbs energy variation calculation for describing heterogeneous equilibria of transformations of calcium, strontium, and barium polyvanadates, that occur in systems MeO-V2O5-H2O, where Me is the alkaline earth element, has been developed and used. Its quintessence consists in the thermodynamic analysis of the real conditions of various processes on the basis of their total thermodynamic characteristics. On the basis of the selected thermodynamic data for involved species, the thermodynamic stability areas of solid polyvanadates towards the solution pH and vanadium and alkaline earth metal ion concentrations in heterogeneous mixtures have been established, taking into account the complex formation reactions in multicomponent heterogeneous systems. The existing experimental data confirm the results on the thermodynamic stability of polyvanadates obtained in this paper.http://dx.doi.org/10.1155/2019/7091781 |
| spellingShingle | Igor Povar Inga Zinicovscaia Oxana Spinu Boris Pintilie Thermodynamic Stability Areas of Polyvanadates of Alkaline Earth Metals Journal of Chemistry |
| title | Thermodynamic Stability Areas of Polyvanadates of Alkaline Earth Metals |
| title_full | Thermodynamic Stability Areas of Polyvanadates of Alkaline Earth Metals |
| title_fullStr | Thermodynamic Stability Areas of Polyvanadates of Alkaline Earth Metals |
| title_full_unstemmed | Thermodynamic Stability Areas of Polyvanadates of Alkaline Earth Metals |
| title_short | Thermodynamic Stability Areas of Polyvanadates of Alkaline Earth Metals |
| title_sort | thermodynamic stability areas of polyvanadates of alkaline earth metals |
| url | http://dx.doi.org/10.1155/2019/7091781 |
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