PREFERENTIAL SOLVATION OF L-ARABINOSE AND DL-MALIC ACID IN ETHANOL + WATER MIXTURES
By using the inverse Kirkwood-Buff integrals (IKBI) method, the differences between the local, around the solute and the bulk mole fractions of both solvents in saturated solutions of L-arabinose (compound 3) and DL-malic acid (compound 3) in ethanol (compound 1) + water (compound 2) binary mixtures...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Universidad Nacional de Colombia
2017-01-01
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| Series: | Momento |
| Subjects: | |
| Online Access: | https://revistas.unal.edu.co/index.php/momento/article/view/62428 |
| _version_ | 1828463404003622912 |
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| author | Zaira J. Cárdenas Daniel M. Jiménez Fleming Martínez |
| author_facet | Zaira J. Cárdenas Daniel M. Jiménez Fleming Martínez |
| author_sort | Zaira J. Cárdenas |
| collection | DOAJ |
| description | By using the inverse Kirkwood-Buff integrals (IKBI) method, the differences between the local, around the solute and the bulk mole fractions of both solvents in saturated solutions of L-arabinose (compound 3) and DL-malic acid (compound 3) in ethanol (compound 1) + water (compound 2) binary mixtures were derived from their thermodynamic properties. Accordingly, it is found that these compounds are sensitive to preferential solvation effects; in this way, the preferential solvation parameter (dx1,3) for L-arabinose is slightly positive in water-rich mixtures but negative in those beyond 0.25 in ethanol mole fraction. In different way, the dx1,3 values of DL-malic acid are negative in almost all the compositions. The highest solvation by ethanol observed in water-rich mixtures for L-arabinose could be due mainly to polarity effects. Otherwise, the preference of these compounds for water in ethanol-rich mixtures could be explained in terms of the higher acidic behavior of water interacting with hydrogen-acceptor hydroxyl groups in L-arabinose and DL-malic acid. |
| first_indexed | 2024-12-11T02:53:18Z |
| format | Article |
| id | doaj.art-0ebb266fc35b4ac09487163814fed26d |
| institution | Directory Open Access Journal |
| issn | 0121-4470 2500-8013 |
| language | English |
| last_indexed | 2024-12-11T02:53:18Z |
| publishDate | 2017-01-01 |
| publisher | Universidad Nacional de Colombia |
| record_format | Article |
| series | Momento |
| spelling | doaj.art-0ebb266fc35b4ac09487163814fed26d2022-12-22T01:23:13ZengUniversidad Nacional de ColombiaMomento0121-44702500-80132017-01-01054142810.15446/mo.n54.6242844651PREFERENTIAL SOLVATION OF L-ARABINOSE AND DL-MALIC ACID IN ETHANOL + WATER MIXTURESZaira J. CárdenasDaniel M. JiménezFleming MartínezBy using the inverse Kirkwood-Buff integrals (IKBI) method, the differences between the local, around the solute and the bulk mole fractions of both solvents in saturated solutions of L-arabinose (compound 3) and DL-malic acid (compound 3) in ethanol (compound 1) + water (compound 2) binary mixtures were derived from their thermodynamic properties. Accordingly, it is found that these compounds are sensitive to preferential solvation effects; in this way, the preferential solvation parameter (dx1,3) for L-arabinose is slightly positive in water-rich mixtures but negative in those beyond 0.25 in ethanol mole fraction. In different way, the dx1,3 values of DL-malic acid are negative in almost all the compositions. The highest solvation by ethanol observed in water-rich mixtures for L-arabinose could be due mainly to polarity effects. Otherwise, the preference of these compounds for water in ethanol-rich mixtures could be explained in terms of the higher acidic behavior of water interacting with hydrogen-acceptor hydroxyl groups in L-arabinose and DL-malic acid.https://revistas.unal.edu.co/index.php/momento/article/view/62428L-arabinoseDL-malic acidethanolsolubilityIKBIpreferential solvation. |
| spellingShingle | Zaira J. Cárdenas Daniel M. Jiménez Fleming Martínez PREFERENTIAL SOLVATION OF L-ARABINOSE AND DL-MALIC ACID IN ETHANOL + WATER MIXTURES Momento L-arabinose DL-malic acid ethanol solubility IKBI preferential solvation. |
| title | PREFERENTIAL SOLVATION OF L-ARABINOSE AND DL-MALIC ACID IN ETHANOL + WATER MIXTURES |
| title_full | PREFERENTIAL SOLVATION OF L-ARABINOSE AND DL-MALIC ACID IN ETHANOL + WATER MIXTURES |
| title_fullStr | PREFERENTIAL SOLVATION OF L-ARABINOSE AND DL-MALIC ACID IN ETHANOL + WATER MIXTURES |
| title_full_unstemmed | PREFERENTIAL SOLVATION OF L-ARABINOSE AND DL-MALIC ACID IN ETHANOL + WATER MIXTURES |
| title_short | PREFERENTIAL SOLVATION OF L-ARABINOSE AND DL-MALIC ACID IN ETHANOL + WATER MIXTURES |
| title_sort | preferential solvation of l arabinose and dl malic acid in ethanol water mixtures |
| topic | L-arabinose DL-malic acid ethanol solubility IKBI preferential solvation. |
| url | https://revistas.unal.edu.co/index.php/momento/article/view/62428 |
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