caa a22 4500 463189965 CHVBK 20180406164905.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10973-006-8214-x doi (NATIONALLICENCE)springer-10.1007/s10973-006-8214-x Calorimetry studies of a chemical oscillatory system [Elektronische Daten] The effect of putrescine on KSCN-H2O2-CuSO4-NaOH reactions [S. Jingyan, L. Yuwen, L. Jie, W. Zhiyong, W. Cunxin] The effect of putrescine (PUT) on KSCN-H2O2-CuSO4-NaOH oscillating system was investigated by calorimetric method. The oscillating reaction was monitored in a closed reactor with stirring, and the result showed that the oscillating period was linearly related with putrescine concentration and the numbers of oscillation decreased with increase in putrescine concentration. When [PUT]=2.83·10−4 M, no oscillation was observed. A possible mechanism is proposed that putrescine is a scavenger of the active-oxygen species. The result of numerical simulation by a simplified mechanism consisting of 18 kinetic steps and 16 variables is consistent with the experimental findings. Springer Science+Business Media LLC, 2007 calorimetry nationallicence chemical oscillation nationallicence putrescine nationallicence Jingyan S. College of Chemistry and Molecular Science, Wuhan University, 430072, Wuhan, China aut Yuwen L. College of Chemistry and Molecular Science, Wuhan University, 430072, Wuhan, China aut Jie L. College of Chemistry and Molecular Science, Wuhan University, 430072, Wuhan, China aut Zhiyong W. College of Chemistry and Molecular Science, Wuhan University, 430072, Wuhan, China aut Cunxin W. College of Chemistry and Molecular Science, Wuhan University, 430072, Wuhan, China aut Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 90/3(2007-12-01), 761-767 1388-6150 90:3<761 2007 90 10973 https://doi.org/10.1007/s10973-006-8214-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-8214-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jingyan S. College of Chemistry and Molecular Science, Wuhan University, 430072, Wuhan, China aut NATIONALLICENCE 700 1- Yuwen L. College of Chemistry and Molecular Science, Wuhan University, 430072, Wuhan, China aut NATIONALLICENCE 700 1- Jie L. College of Chemistry and Molecular Science, Wuhan University, 430072, Wuhan, China aut NATIONALLICENCE 700 1- Zhiyong W. College of Chemistry and Molecular Science, Wuhan University, 430072, Wuhan, China aut NATIONALLICENCE 700 1- Cunxin W. College of Chemistry and Molecular Science, Wuhan University, 430072, Wuhan, China aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 90/3(2007-12-01), 761-767 1388-6150 90:3<761 2007 90 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer