کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7062196 | 1459450 | 2016 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermodynamic study on six tricyclic nitrogen heterocyclic compounds by thermal analysis and effusion techniques
ترجمه فارسی عنوان
مطالعه ترمودینامیکی روی شش ترکیب هتروسیکلریک نیتروژن تری استیک با تکنیک های حرارتی و افیوژن
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The molar sublimation and vaporization enthalpies of acridine, phenanthridine, 1,7-phenanthroline, 1,10-phenanthroline, 4,7-phenanthroline and phenazine were determined at the averages of their respective experimental temperature ranges (ÎcrgH0m () and ÎlgH0m (), respectively) from the temperature dependencies of vapor pressure determined using Knudsen Effusion Mass Loss (KEML), Torsion Effusion (TE) and Isothermal Thermogravimetry (ITG) above their solid and liquid phases. The fusion characteristics (melting temperatures and the molar standard enthalpies of fusion at their melting temperatures) measured by Differential Scanning Calorimetry (DSC) were compared with the available literature values. Solid and liquid vapor pressure data determined by KEML, TE and ITG techniques as well as ÎcrgH0m () and ÎlgH0m () values, adjusted at 298.15Â K by using the values of Cp(cr) and Cp(l) calculated by a well-known group additivity method, were found to be fairly correlated and are consistent with the available literature data. Final ÎcrgH0m(298.15Â K) values were also provided as weighted averages of all the available data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 636, 20 July 2016, Pages 71-84
Journal: Thermochimica Acta - Volume 636, 20 July 2016, Pages 71-84
نویسندگان
Bruno Brunetti, Andrea Lapi, Stefano Vecchio Ciprioti,