| Journal: | Quimica nova |
| Database: | PERIÓDICA |
| System number: | 000198552 |
| ISSN: | 0100-4042 |
| Authors: | Zorel-Junior, Henrique1 Costalonga, Ademir Crespi, Marisa Ribeiro, Clovis |
| Institutions: | 1Universidade Estadual Paulista "Julio de Mesquita Filho", Instituto de Quimica, Araraquara, Sao Paulo. Brasil |
| Year: | 2001 |
| Season: | Sep-Oct |
| Volumen: | 24 |
| Number: | 5 |
| Pages: | 599-603 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | The compounds 5-nitro-8-quinolinol and 5,7-dinitro-8-quinolinol were obtained by nitration of the chelant 8-quinolinol. The compounds were characterized through EA, MNR, XRD, IR, TG, DTA and DSC. It was verified through thermal analysis that the compounds show consecutive processes of sublimation, fusion and vaporization. During the vaporization process, partial thermal decomposition was observed, with formation of carbonaceous residues. Considering a slower heating rate, the sublimation is the prevalent process to the nitro-derivatives while the vaporization is the main process to 8-quinolinol. The thermal stability follows the decreasing order from 5,7-dinitro-8-quinolinol to 5-nitro-8-quinolinol to 8-quinolinol |
| Disciplines: | Química |
| Keyword: | Fisicoquímica y química teórica, Química orgánica, 8-quinolinol, Análisis térmico, Comportamiento térmico, Nitroderivados |
| Keyword: | Chemistry, Organic chemistry, Physical and theoretical chemistry, 8-quinolinol, Thermal analysis, Thermal behavior, Nitro-derivatives |
| Full text: | Texto completo (Ver HTML) |
