کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
202487 460605 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermochemical and vapor pressure behavior of anthracene and brominated anthracene mixtures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Thermochemical and vapor pressure behavior of anthracene and brominated anthracene mixtures
چکیده انگلیسی

The present work concerns the thermochemical and vapor pressure behavior of the anthracene (1) + 2-bromoanthracene (2) and anthracene (1) + 9-bromoanthracene (3) systems. Solid–liquid equilibrium temperature and differential scanning calorimetry studies indicate the existence of a minimum melting solid state near an equilibrium temperature of 477.65 K at x1 = 0.74 for the (1) + (2) system. Additionally, solid–vapor equilibrium studies for the (1) + (2) system show that the vapor pressure of the mixtures depends on composition, but does not follow ideal Raoult's law behavior. The (1) + (3) system behaves differently from the (1) + (2) system. The (1) + (3) system has a solid solution like phase diagram. The system consists of two phases, an anthracene like phase and a 9-bromoanthracene like phase, while (1) + (2) mixtures only form a single phase. Moreover, experimental studies of the two systems suggest that the (1) + (2) system is in a thermodynamically lower energy state than the (1) + (3) system.


► We report on phase and thermochemical behavior of two binary polycyclic aromatic compound mixture systems.
► The influence of mono bromo substitution position on mixture properties was examined.
► Solid vapor pressures for these mixtures were measured using Knudsen effusion method.
► Anthracene + 2-bromoanthracene mixtures form a single phase, while anthracene + 9-bromoanthracene mixtures form two phases.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fluid Phase Equilibria - Volume 342, 25 March 2013, Pages 60–70
نویسندگان
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