Počet záznamů: 1
Use of emanation thermal analysis and evolved gas analysis in thermal study of zinc(II) benzoate complex compounds
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SYSNO ASEP 0357514 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Use of emanation thermal analysis and evolved gas analysis in thermal study of zinc(II) benzoate complex compounds Tvůrce(i) Findoráková, L. (SK)
Györyová, K. (SK)
Večerníková, Eva (UACH-T) SAI
Balek, V. (CZ)Zdroj.dok. Journal of Thermal Analysis and Calorimetry. - : Akadémiai Kiadó - ISSN 1388-6150
Roč. 98, č. 3 (2009), s. 765-769Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. HU - Maďarsko Klíč. slova zinc(II) benzoate ; caffeine ; urea ; thermogravimetry Vědní obor RIV CA - Anorganická chemie CEZ AV0Z40320502 - UACH-T (2005-2011) UT WOS 000272800700024 DOI 10.1007/s10973-009-0393-9 Anotace Thermal behaviours of three zinc(II) benzoate complex compounds (two new with caffeine and urea), namely Zn(C6H5COO)(2), Zn(C6H5COO)(2)center dot caf(2), Zn(C6H5COO)(2)center dot u(2), were characterized by using thermogravimetry (TG/DTG), differential thermal analysis (DTA), evolved gas analysis (EGA) with mass spectrometry (MS) detection and emanation thermal analysis (ETA). Temperature intervals of the stability of the compounds as well as the mechanisms of their thermal degradation were determined. From TG and DTA results it followed that the oxidative degradation of urea with CO2 or caffeine with CO2 from the investigated Zn(II) benzoate complex compounds takes place as the first step of their thermal degradation. In the second step of thermal degradation diphenylketone was release. The evolved gas analysis has been used to determine intermediate products of thermal degradation and temperature ranges of their evolution from the samples. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2011
Počet záznamů: 1