PHASE BEHAVIOR OF NaH2PO4.H2O AT HIGH TEMPERATURES
Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), and Impedance Spectroscopy (IS) were used to study the phase behavior of the system, NaH2PO4.H2O above room temperature. The DSC results show five endothermic anomalies with picks around 70 oC, 120 oC, 210 oC, 325 oC and $350...
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| Format: | Article |
| Language: | English |
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Universidad Nacional de Colombia
2016-01-01
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| Series: | Momento |
| Subjects: | |
| Online Access: | https://revistas.unal.edu.co/index.php/momento/article/view/58887 |
| _version_ | 1818837809010573312 |
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| author | Yeimy Londoño Diego Peña-Lara Jesús E. Diosa |
| author_facet | Yeimy Londoño Diego Peña-Lara Jesús E. Diosa |
| author_sort | Yeimy Londoño |
| collection | DOAJ |
| description | Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), and Impedance Spectroscopy (IS) were used to study the phase behavior of the system, NaH2PO4.H2O above room temperature. The DSC results show five endothermic anomalies with picks around 70 oC, 120 oC, 210 oC, 325 oC and $350 oC, during the first heating run, but any anomaly is show on the subsequent cooling run. The TGA results show that fresh powder of NaH2PO4.H2O loss weight when the sample is first heated across the different temperatures. The electrical resistance of fresh sample NaH2PO4.H2O also shows strong variation at 70 oC and 120 oC anomalies, indicating that the ionic transport is enhanced between 50 oC and 108 oC, and between 120 oC and 150 oC. We discuss and attributed the observed behavior in NaH2PO4.H2O throw the different temperatures, where observed the anomalies, as a consequence of a dehydration process of the sample. |
| first_indexed | 2024-12-19T03:28:24Z |
| format | Article |
| id | doaj.art-2671f85e021f4bfbb576a0840e5a9cf5 |
| institution | Directory Open Access Journal |
| issn | 0121-4470 2500-8013 |
| language | English |
| last_indexed | 2024-12-19T03:28:24Z |
| publishDate | 2016-01-01 |
| publisher | Universidad Nacional de Colombia |
| record_format | Article |
| series | Momento |
| spelling | doaj.art-2671f85e021f4bfbb576a0840e5a9cf52022-12-21T20:37:32ZengUniversidad Nacional de ColombiaMomento0121-44702500-80132016-01-010521810.15446/mo.n52.5888743429PHASE BEHAVIOR OF NaH2PO4.H2O AT HIGH TEMPERATURESYeimy Londoño0Diego Peña-Lara1Jesús E. Diosa2Programa Alimentos y Electrónica, Universidad del Valle, sedes Palmira y Tuluá - ColombiaDepartamento de Física, Universidad del Valle, Cali - ColombiaPrograma Alimentos y Electrónica, Universidad del Valle, sedes Palmira y Tuluá - ColombiaDifferential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), and Impedance Spectroscopy (IS) were used to study the phase behavior of the system, NaH2PO4.H2O above room temperature. The DSC results show five endothermic anomalies with picks around 70 oC, 120 oC, 210 oC, 325 oC and $350 oC, during the first heating run, but any anomaly is show on the subsequent cooling run. The TGA results show that fresh powder of NaH2PO4.H2O loss weight when the sample is first heated across the different temperatures. The electrical resistance of fresh sample NaH2PO4.H2O also shows strong variation at 70 oC and 120 oC anomalies, indicating that the ionic transport is enhanced between 50 oC and 108 oC, and between 120 oC and 150 oC. We discuss and attributed the observed behavior in NaH2PO4.H2O throw the different temperatures, where observed the anomalies, as a consequence of a dehydration process of the sample.https://revistas.unal.edu.co/index.php/momento/article/view/58887NaH2PO4Resistencia eléctricaDSCTGA. |
| spellingShingle | Yeimy Londoño Diego Peña-Lara Jesús E. Diosa PHASE BEHAVIOR OF NaH2PO4.H2O AT HIGH TEMPERATURES Momento NaH2PO4 Resistencia eléctrica DSC TGA. |
| title | PHASE BEHAVIOR OF NaH2PO4.H2O AT HIGH TEMPERATURES |
| title_full | PHASE BEHAVIOR OF NaH2PO4.H2O AT HIGH TEMPERATURES |
| title_fullStr | PHASE BEHAVIOR OF NaH2PO4.H2O AT HIGH TEMPERATURES |
| title_full_unstemmed | PHASE BEHAVIOR OF NaH2PO4.H2O AT HIGH TEMPERATURES |
| title_short | PHASE BEHAVIOR OF NaH2PO4.H2O AT HIGH TEMPERATURES |
| title_sort | phase behavior of nah2po4 h2o at high temperatures |
| topic | NaH2PO4 Resistencia eléctrica DSC TGA. |
| url | https://revistas.unal.edu.co/index.php/momento/article/view/58887 |
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