Thermodynamic and Calorimetric Study of Acetylsalicylic Acid (Aspirin) and Ibuprofen
Enthalpies of solution and dilution of aqueous solutions of sodium acetylsalicylic acid salt and ibuprofen salt were measured with an isoperibolic calorimeter at 293.15 K, 298.15 K, 303.15 K, 308.15 K and 318.15 K. The concentration of the electrolyte was restricted to the solubility of the salt at...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2011/402395 |
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| author | Juan Carlos Moreno-Piraján Vanessa Silenia García-Cuello Liliana Giraldo-Gutierréz |
| author_facet | Juan Carlos Moreno-Piraján Vanessa Silenia García-Cuello Liliana Giraldo-Gutierréz |
| author_sort | Juan Carlos Moreno-Piraján |
| collection | DOAJ |
| description | Enthalpies of solution and dilution of aqueous solutions of sodium acetylsalicylic acid salt and ibuprofen salt were measured with an isoperibolic calorimeter at 293.15 K, 298.15 K, 303.15 K, 308.15 K and 318.15 K. The concentration of the electrolyte was restricted to the solubility of the salt at various temperatures and did not exceed 0.035–0.057 mol kg-1, depending on the temperature studied. The Virial coefficients were derived from Pitzer's model and the excess thermodynamic functions of both the solution and the components of the solution were calculated. An analysis of the thermodynamic characteristics of the solution in terms of concentration and temperature interval was carried out and discussed. Additionally, an analysis was performed by differential scanning calorimetry (DSC). |
| format | Article |
| id | doaj-art-958b14968f2c4a2e80a09c6515f71497 |
| institution | Kabale University |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | E-Journal of Chemistry |
| spelling | doaj-art-958b14968f2c4a2e80a09c6515f714972025-08-20T03:37:02ZengWileyE-Journal of Chemistry0973-49452090-98102011-01-01831298130810.1155/2011/402395Thermodynamic and Calorimetric Study of Acetylsalicylic Acid (Aspirin) and IbuprofenJuan Carlos Moreno-Piraján0Vanessa Silenia García-Cuello1Liliana Giraldo-Gutierréz2Grupo de Investigación en Sólidos Porosos y Calorimetría, Departamento de Química, Universidad de los Andes, Carrera 1 No 18 A 10, Bogotá, ColombiaGrupo de Investigación en Sólidos Porosos y Calorimetría, Departamento de Química, Universidad de los Andes, Carrera 1 No 18 A 10, Bogotá, ColombiaFacultad de Ciencias, Departamento de Química, Universidad Nacional de Colombia, Carrera 30 No 45-03, Bogotá, ColombiaEnthalpies of solution and dilution of aqueous solutions of sodium acetylsalicylic acid salt and ibuprofen salt were measured with an isoperibolic calorimeter at 293.15 K, 298.15 K, 303.15 K, 308.15 K and 318.15 K. The concentration of the electrolyte was restricted to the solubility of the salt at various temperatures and did not exceed 0.035–0.057 mol kg-1, depending on the temperature studied. The Virial coefficients were derived from Pitzer's model and the excess thermodynamic functions of both the solution and the components of the solution were calculated. An analysis of the thermodynamic characteristics of the solution in terms of concentration and temperature interval was carried out and discussed. Additionally, an analysis was performed by differential scanning calorimetry (DSC).http://dx.doi.org/10.1155/2011/402395 |
| spellingShingle | Juan Carlos Moreno-Piraján Vanessa Silenia García-Cuello Liliana Giraldo-Gutierréz Thermodynamic and Calorimetric Study of Acetylsalicylic Acid (Aspirin) and Ibuprofen E-Journal of Chemistry |
| title | Thermodynamic and Calorimetric Study of Acetylsalicylic Acid (Aspirin) and Ibuprofen |
| title_full | Thermodynamic and Calorimetric Study of Acetylsalicylic Acid (Aspirin) and Ibuprofen |
| title_fullStr | Thermodynamic and Calorimetric Study of Acetylsalicylic Acid (Aspirin) and Ibuprofen |
| title_full_unstemmed | Thermodynamic and Calorimetric Study of Acetylsalicylic Acid (Aspirin) and Ibuprofen |
| title_short | Thermodynamic and Calorimetric Study of Acetylsalicylic Acid (Aspirin) and Ibuprofen |
| title_sort | thermodynamic and calorimetric study of acetylsalicylic acid aspirin and ibuprofen |
| url | http://dx.doi.org/10.1155/2011/402395 |
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