Kinetic evaluation of the dehydration of Yb(III) Lu(III) and Y(III) 4-chlorobenzylidenepyruvate by thermogravimetry (TG)
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidade Estadual Paulista Júlio de Mesquita Filho
2006
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| _version_ | 1876425887423922176 |
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| author | N. S. Fernandes |
| author_facet | N. S. Fernandes |
| contents | Kinetic evaluation of the dehydration of Yb(III) Lu(III) and Y(III) 4-chlorobenzylidenepyruvate by thermogravimetry (TG) N. S. Fernandes S. A. Araujo M. Ionashiro Química kinetic lanthanides thermogravimetry thermal decomposition The dehydration kinetic of Yb, Lu and Y 4-chlorobenzylidenepyruvate was studied byusing thermogravimetry and the kinetics parameters obtained by Flynn and Wall method suggest thatthe dehydration step follows a first order mechanism. The activation energies calculated were 103.6,96.6 and 97.2 kJ/mol and the lifetime considering the temperature of 31 and 101 º C for the dehydrationof these compounds were 23, 26, 31 minutes and 0.6, 1.3 and 1.4 seconds, respectively. Theresults have similar values and suggest that the water is attached in the same way. 2006 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42931206 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.2 Vol.31 |
| format | Artículo científico |
| id | redalyc_42931206 |
| institution | Redalyc |
| language | en |
| publishDate | 2006 |
| publisher | Universidade Estadual Paulista Júlio de Mesquita Filho |
| spellingShingle | Kinetic evaluation of the dehydration of Yb(III) Lu(III) and Y(III) 4-chlorobenzylidenepyruvate by thermogravimetry (TG) N. S. Fernandes Química kinetic lanthanides thermogravimetry thermal decomposition Kinetic evaluation of the dehydration of Yb(III) Lu(III) and Y(III) 4-chlorobenzylidenepyruvate by thermogravimetry (TG) N. S. Fernandes S. A. Araujo M. Ionashiro Química kinetic lanthanides thermogravimetry thermal decomposition The dehydration kinetic of Yb, Lu and Y 4-chlorobenzylidenepyruvate was studied byusing thermogravimetry and the kinetics parameters obtained by Flynn and Wall method suggest thatthe dehydration step follows a first order mechanism. The activation energies calculated were 103.6,96.6 and 97.2 kJ/mol and the lifetime considering the temperature of 31 and 101 º C for the dehydrationof these compounds were 23, 26, 31 minutes and 0.6, 1.3 and 1.4 seconds, respectively. Theresults have similar values and suggest that the water is attached in the same way. 2006 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42931206 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.2 Vol.31 |
| title | Kinetic evaluation of the dehydration of Yb(III) Lu(III) and Y(III) 4-chlorobenzylidenepyruvate by thermogravimetry (TG) |
| topic | Química kinetic lanthanides thermogravimetry thermal decomposition |
| url | https://www.redalyc.org/articulo.oa?id=42931206 |