کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
673486 1459511 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis, characterization and thermal studies of alkaline earth glycolate, except beryllium and radium
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Synthesis, characterization and thermal studies of alkaline earth glycolate, except beryllium and radium
چکیده انگلیسی


• The alkaline earth glycolates were synthesized.
• The TG–DTA curves provided previously unreported information about thermal behavior.
• The gaseous productsreleased were detected by TG–DSC coupled FTIR.

Characterization, thermal stability and thermal decomposition of alkaline earth glycolates, M(C2H3O3)2 (M = Mg(II), Ca(II), Sr(II) and Ba(II)) were investigated employing simultaneous thermogravimetry and differential thermal analysis (TG–DTA), infrared spectroscopy (FTIR), TG–DSC coupled to FTIR, elemental analysis based on the mass losses of the TG–DTA curves and complexometry. Calcium and strontium compounds were obtained in the anhydrous state, while magnesium and barium ones with hydration and adsorbed water, respectively. In all the compounds the thermal decomposition occurs with the formation of carbonate as intermediate and the respective oxides as final residue, except magnesium one which the thermal decomposition occurs with the formation of magnesium oxide, without the formation of carbonate. The results also provided information concerning the thermal stability, thermal behavior and identification of gaseous products evolved during the thermal decomposition of these compounds.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 573, 10 December 2013, Pages 170–174
نویسندگان
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