Open AccessPreparation and thermal decomposition of solid state cinnamates of alkali earth metals, except beryllium and radium
Author(s) -
Ana Glauce Zaina Chiaretto,
Marco Aurélio da Silva Carvalho Filho,
Nedja Suely Fernandes,
Massao Ionashiro
Publication year - 1998
Publication title -
eclética química
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.177
H-Index - 19
eISSN - 1678-4618
pISSN - 0100-4670
DOI - 10.1590/s0100-46701998000100008
Subject(s) - thermogravimetry , thermal decomposition , differential scanning calorimetry , thermal stability , decomposition , solid state , alkali metal , alkaline earth metal , chemistry , derivative (finance) , powder diffraction , nuclear chemistry , materials science , inorganic chemistry , analytical chemistry (journal) , crystallography , organic chemistry , thermodynamics , physics , financial economics , economics
Foram preparados compostos de fórmula geral ML2.nH2O, onde M é Mg, Ca, Sr e Ba; L é o cinamato (C6H5-CH=CH-COO-) e n = 2; 4; 0,8; 3, respectivamente. A termogravimetria (TG), termogravimetria derivada (DTG), calorimetria exploratória diferencial (DSC) e difratometria de raios-X foram utilizados na caracterização, na verificação da estabilidade térmica e estudo da decomposição térmica desses compostos.Solid state compounds of general formula ML2.nH2O [where M is Mg, Ca, Sr or Ba; L is cinnamate (C6H5 -CH=CH-COO-) and n = 2, 4, 0.8, 3 respectively], have been synthetized. Thermogravimetry (TG), derivative thermogravimetry (DTG), differential scanning calorimetry (DSC) and X-ray diffraction powder patterns have been used to characterize and to study the thermal stability and thermal decomposition of these compounds