Thermische Zersetzung von Blei(II)-Acetat |
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Authors: | R Leibold F Huber |
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Institution: | (1) Lehrstuhl für Anorganische Chemie II, Universität Dortmund, D 4600 Dortmund 50, G.F.R. |
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Abstract: | Zusammenfassung Die Zersetzung von Pb(CH3COO)3 · 3 H3O wurde im Bereich von Raumtemperatur bis 450° unter N3 mittels TG, DTA verfolgt und die Produkte wurden analytisch charakterisiert. PbO ist das hauptsächliche feste Endprodukt, neben dem im wesentlichen nur Pb entsteht. Als feste Zwischenprodukte wurden neben Pb(CH3COO)3 die basischen Acetate Pb(CH3COO)2 · PbO und Pb(CH3COO)2 · 2 PbO gefunden und durch Röntgenpulveraufnahmen identifiziert; diese basischen Acetate wurden durch isotherme Zersetzung bei 240 bzw. 305° dargestellt. Unter den durch GC und MS erfaßten und quantitativ bestimmten flüchtigen Zersetzungsprodukten sind CO2 und Aceton Hauptbestandteile. Verschiedene Bildungsweisen der übrigen Produkte, CH3COOH, (CH3CO)2O, Acetylaceton und des Zwischenproduktes Keten werden aufgezeigt.
The decomposition of Pb(CH3COO)3 · 3 H2O under N2 has been studied by TG and DTA between room temperature and 450° and the products have been characterized analytically. PbO is the main solid product, besides which essentially only Pb is produced. As solid intermediates, aside from Pb(CH3COO)3 the basic acetates Pb(CH3COO)2 · PbO and Pb(CH3COO)2 · 2 PbO have been found and identified via their X-ray powder diagrams; these basic acetates have been prepared by isothermal decomposition at 240 and 305°, respectively. Among the volatile decomposition products analyzed by GC and MS and determined quantitatively, CO2 and acetone are the main products. Different routes for the formation of the other products, CH3COOH, (CH3CO)2O, acetylacetone and the intermediate ketene are shown.
Résumé On a suivi, par TG et ATD sous N2, dans l'intervalle de températures allant de l'ambiante jusqu'à 450°, la décomposition de Pb(CH3COO)2 · 3 H2O dont on a caractérisé les produits par des méthodes analytiques. PbO est le principal produit final solide, en dehors duquel il ne se forme essentiellement que du Pb. Comme produits intermédiaires solides, on a trouvé, à part Pb(CH3COO)2, les acétates basiques Pb(CH3COO)3. PbO et Pb(CH3COO)2 · · 2 PbO qui ont été identifiés par analyse de poudres aux rayons X. Ces acétates basiques se sont formés, par décomposition isotherme, respectivement à 240 et à 305°. Parmi les produits de décomposition volatils décelés par GC et MS et dosés par des méthodes quantitatives, CO3 et l'acétone sont les composants principaux. On montre les différents modes de formation des autres produits, comme CH3COOH, (CH3CO)3O, l'acétylacétone et le cétène formé transitoirement.
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![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![vcy](/content/r502w1ut130g508r/xxlarge1074.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![vcy](/content/r502w1ut130g508r/xxlarge1074.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) , ![pcy](/content/r502w1ut130g508r/xxlarge1087.gif) ![rcy](/content/r502w1ut130g508r/xxlarge1088.gif) 240 305°. ![Scy](/content/r502w1ut130g508r/xxlarge1057.gif) ![rcy](/content/r502w1ut130g508r/xxlarge1088.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![dcy](/content/r502w1ut130g508r/xxlarge1076.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![ucy](/content/r502w1ut130g508r/xxlarge1091.gif) ![chcy](/content/r502w1ut130g508r/xxlarge1095.gif) ![icy](/content/r502w1ut130g508r/xxlarge1080.gif) ![pcy](/content/r502w1ut130g508r/xxlarge1087.gif) ![rcy](/content/r502w1ut130g508r/xxlarge1088.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![dcy](/content/r502w1ut130g508r/xxlarge1076.gif) ![ucy](/content/r502w1ut130g508r/xxlarge1091.gif) ![kcy](/content/r502w1ut130g508r/xxlarge1082.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![rcy](/content/r502w1ut130g508r/xxlarge1088.gif) ![acy](/content/r502w1ut130g508r/xxlarge1072.gif) ![zcy](/content/r502w1ut130g508r/xxlarge1079.gif) ![lcy](/content/r502w1ut130g508r/xxlarge1083.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![zhcy](/content/r502w1ut130g508r/xxlarge1078.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) , ![kcy](/content/r502w1ut130g508r/xxlarge1082.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![rcy](/content/r502w1ut130g508r/xxlarge1088.gif) ![ycy](/content/r502w1ut130g508r/xxlarge1099.gif) ![bcy](/content/r502w1ut130g508r/xxlarge1073.gif) ![ycy](/content/r502w1ut130g508r/xxlarge1099.gif) ![lcy](/content/r502w1ut130g508r/xxlarge1083.gif) ![icy](/content/r502w1ut130g508r/xxlarge1080.gif) ![dcy](/content/r502w1ut130g508r/xxlarge1076.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![icy](/content/r502w1ut130g508r/xxlarge1080.gif) ![fcy](/content/r502w1ut130g508r/xxlarge1092.gif) ![icy](/content/r502w1ut130g508r/xxlarge1080.gif) ![tscy](/content/r502w1ut130g508r/xxlarge1094.gif) ![icy](/content/r502w1ut130g508r/xxlarge1080.gif) ![rcy](/content/r502w1ut130g508r/xxlarge1088.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![vcy](/content/r502w1ut130g508r/xxlarge1074.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) ![kcy](/content/r502w1ut130g508r/xxlarge1082.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![lcy](/content/r502w1ut130g508r/xxlarge1083.gif) ![icy](/content/r502w1ut130g508r/xxlarge1080.gif) ![chcy](/content/r502w1ut130g508r/xxlarge1095.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![scy](/content/r502w1ut130g508r/xxlarge1089.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![vcy](/content/r502w1ut130g508r/xxlarge1074.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![pcy](/content/r502w1ut130g508r/xxlarge1087.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![dcy](/content/r502w1ut130g508r/xxlarge1076.gif) 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![acy](/content/r502w1ut130g508r/xxlarge1072.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![gcy](/content/r502w1ut130g508r/xxlarge1075.gif) ![rcy](/content/r502w1ut130g508r/xxlarge1088.gif) ![acy](/content/r502w1ut130g508r/xxlarge1072.gif) ![fcy](/content/r502w1ut130g508r/xxlarge1092.gif) ![icy](/content/r502w1ut130g508r/xxlarge1080.gif) ![mcy](/content/r502w1ut130g508r/xxlarge1084.gif) ![acy](/content/r502w1ut130g508r/xxlarge1072.gif) ![scy](/content/r502w1ut130g508r/xxlarge1089.gif) -![scy](/content/r502w1ut130g508r/xxlarge1089.gif) ![pcy](/content/r502w1ut130g508r/xxlarge1087.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![kcy](/content/r502w1ut130g508r/xxlarge1082.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![rcy](/content/r502w1ut130g508r/xxlarge1088.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![scy](/content/r502w1ut130g508r/xxlarge1089.gif) ![kcy](/content/r502w1ut130g508r/xxlarge1082.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![pcy](/content/r502w1ut130g508r/xxlarge1087.gif) ![icy](/content/r502w1ut130g508r/xxlarge1080.gif) , CO2 ![acy](/content/r502w1ut130g508r/xxlarge1072.gif) ![tscy](/content/r502w1ut130g508r/xxlarge1094.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![yacy](/content/r502w1ut130g508r/xxlarge1103.gif) ![vcy](/content/r502w1ut130g508r/xxlarge1074.gif) ![lcy](/content/r502w1ut130g508r/xxlarge1083.gif) ![yacy](/content/r502w1ut130g508r/xxlarge1103.gif) ![lcy](/content/r502w1ut130g508r/xxlarge1083.gif) ![icy](/content/r502w1ut130g508r/xxlarge1080.gif) ![scy](/content/r502w1ut130g508r/xxlarge1089.gif) ![gcy](/content/r502w1ut130g508r/xxlarge1075.gif) ![acy](/content/r502w1ut130g508r/xxlarge1072.gif) ![vcy](/content/r502w1ut130g508r/xxlarge1074.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) ![ycy](/content/r502w1ut130g508r/xxlarge1099.gif) ![mcy](/content/r502w1ut130g508r/xxlarge1084.gif) ![kcy](/content/r502w1ut130g508r/xxlarge1082.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![mcy](/content/r502w1ut130g508r/xxlarge1084.gif) ![pcy](/content/r502w1ut130g508r/xxlarge1087.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![acy](/content/r502w1ut130g508r/xxlarge1072.gif) ![mcy](/content/r502w1ut130g508r/xxlarge1084.gif) . ![Pcy](/content/r502w1ut130g508r/xxlarge1055.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![kcy](/content/r502w1ut130g508r/xxlarge1082.gif) ![acy](/content/r502w1ut130g508r/xxlarge1072.gif) ![zcy](/content/r502w1ut130g508r/xxlarge1079.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) ![rcy](/content/r502w1ut130g508r/xxlarge1088.gif) ![acy](/content/r502w1ut130g508r/xxlarge1072.gif) ![zcy](/content/r502w1ut130g508r/xxlarge1079.gif) ![lcy](/content/r502w1ut130g508r/xxlarge1083.gif) ![icy](/content/r502w1ut130g508r/xxlarge1080.gif) ![chcy](/content/r502w1ut130g508r/xxlarge1095.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) ![ycy](/content/r502w1ut130g508r/xxlarge1099.gif) ![pcy](/content/r502w1ut130g508r/xxlarge1087.gif) ![ucy](/content/r502w1ut130g508r/xxlarge1091.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![bcy](/content/r502w1ut130g508r/xxlarge1073.gif) ![rcy](/content/r502w1ut130g508r/xxlarge1088.gif) ![acy](/content/r502w1ut130g508r/xxlarge1072.gif) ![zcy](/content/r502w1ut130g508r/xxlarge1079.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![vcy](/content/r502w1ut130g508r/xxlarge1074.gif) ![acy](/content/r502w1ut130g508r/xxlarge1072.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) ![icy](/content/r502w1ut130g508r/xxlarge1080.gif) ![dcy](/content/r502w1ut130g508r/xxlarge1076.gif) ![rcy](/content/r502w1ut130g508r/xxlarge1088.gif) ![gcy](/content/r502w1ut130g508r/xxlarge1075.gif) ![icy](/content/r502w1ut130g508r/xxlarge1080.gif) ![pcy](/content/r502w1ut130g508r/xxlarge1087.gif) ![rcy](/content/r502w1ut130g508r/xxlarge1088.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![dcy](/content/r502w1ut130g508r/xxlarge1076.gif) ![ucy](/content/r502w1ut130g508r/xxlarge1091.gif) ![kcy](/content/r502w1ut130g508r/xxlarge1082.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) , CH3COOH, (CH3CO)2O, ![acy](/content/r502w1ut130g508r/xxlarge1072.gif) ![yacy](/content/r502w1ut130g508r/xxlarge1103.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![icy](/content/r502w1ut130g508r/xxlarge1080.gif) ![lcy](/content/r502w1ut130g508r/xxlarge1083.gif) ![acy](/content/r502w1ut130g508r/xxlarge1072.gif) ![tscy](/content/r502w1ut130g508r/xxlarge1094.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) ![pcy](/content/r502w1ut130g508r/xxlarge1087.gif) ![rcy](/content/r502w1ut130g508r/xxlarge1088.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![zhcy](/content/r502w1ut130g508r/xxlarge1078.gif) ![ucy](/content/r502w1ut130g508r/xxlarge1091.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![chcy](/content/r502w1ut130g508r/xxlarge1095.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) ![ocy](/content/r502w1ut130g508r/xxlarge1086.gif) ![gcy](/content/r502w1ut130g508r/xxlarge1075.gif) ![kcy](/content/r502w1ut130g508r/xxlarge1082.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![tcy](/content/r502w1ut130g508r/xxlarge1090.gif) ![iecy](/content/r502w1ut130g508r/xxlarge1077.gif) ![ncy](/content/r502w1ut130g508r/xxlarge1085.gif) .
Dem Fonds der Chemischen Industrie danken wir für finanzielle Unterstützung. |
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