Dehydration and volatilization non isothermic kinetic of the solid state aluminium 8- hydroxyquinolinate
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidade Estadual Paulista Júlio de Mesquita Filho
2001
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| _version_ | 1876466541906624512 |
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| author | Cassia Teresa Guerreiro Ramelo |
| author_facet | Cassia Teresa Guerreiro Ramelo |
| contents | Dehydration and volatilization non isothermic kinetic of the solid state aluminium 8- hydroxyquinolinate Cassia Teresa Guerreiro Ramelo Ana Maria Veronez Marisa Crespi Spirandeli Clóvis Augusto Ribeiro Química TG DTA aluminium volatilisation hydroxyquinolinate Al(C9H6ON)3.2.5H2O was precipitated from the mixture of anaqueous solution of aluminium ion and an acid solution of 8-hydroxyquinoline, by increasing the pH value to 9.5 with ammoniaaqueous solution. The TG curves in nitrogen atmosphere present masslosses due to dehydration, partial volatilisation (sublimation plusvaporisation) of the anhydrous compound followed by thermaldecomposition with the formation of a mixture of carbonaceous andresidues. The relation between sublimation and vaporisation depends onthe heating rate used. The non isothermic integral isoconventionalmethods as linear equations of Ozawa-Flynn-Wall and Kissinger-Akahira-Sunose (KAS) were used to obtain the kinetic parameters from TG andDTA curves, respectively. Despite the fact that both dehydration andvolatilisation reactions follow the linearity by using both methods, onlyfor the volatilisation reaction the validity condition, 20£ E/RT£ 50, wasverified. 2001 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42902614 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.1 Vol.26 |
| format | Artículo científico |
| id | redalyc_42902614 |
| institution | Redalyc |
| language | en |
| publishDate | 2001 |
| publisher | Universidade Estadual Paulista Júlio de Mesquita Filho |
| spellingShingle | Dehydration and volatilization non isothermic kinetic of the solid state aluminium 8- hydroxyquinolinate Cassia Teresa Guerreiro Ramelo Química TG DTA aluminium volatilisation hydroxyquinolinate Dehydration and volatilization non isothermic kinetic of the solid state aluminium 8- hydroxyquinolinate Cassia Teresa Guerreiro Ramelo Ana Maria Veronez Marisa Crespi Spirandeli Clóvis Augusto Ribeiro Química TG DTA aluminium volatilisation hydroxyquinolinate Al(C9H6ON)3.2.5H2O was precipitated from the mixture of anaqueous solution of aluminium ion and an acid solution of 8-hydroxyquinoline, by increasing the pH value to 9.5 with ammoniaaqueous solution. The TG curves in nitrogen atmosphere present masslosses due to dehydration, partial volatilisation (sublimation plusvaporisation) of the anhydrous compound followed by thermaldecomposition with the formation of a mixture of carbonaceous andresidues. The relation between sublimation and vaporisation depends onthe heating rate used. The non isothermic integral isoconventionalmethods as linear equations of Ozawa-Flynn-Wall and Kissinger-Akahira-Sunose (KAS) were used to obtain the kinetic parameters from TG andDTA curves, respectively. Despite the fact that both dehydration andvolatilisation reactions follow the linearity by using both methods, onlyfor the volatilisation reaction the validity condition, 20£ E/RT£ 50, wasverified. 2001 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42902614 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.1 Vol.26 |
| title | Dehydration and volatilization non isothermic kinetic of the solid state aluminium 8- hydroxyquinolinate |
| topic | Química TG DTA aluminium volatilisation hydroxyquinolinate |
| url | https://www.redalyc.org/articulo.oa?id=42902614 |