کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5410975 1506563 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermodynamics of solubility of isatin in Carbitol + water mixed solvent systems at different temperatures
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Thermodynamics of solubility of isatin in Carbitol + water mixed solvent systems at different temperatures
چکیده انگلیسی
Thermodynamics of solubility of natural pharmacologically active compound isatin in various Carbitol + water mixed solvent systems was studied. The solubilities of isatin were measured at T = (298.15 to 338.15) K at atmospheric pressure using an isothermal method. The measured solubility data of isatin was correlated and regressed by three semiempirical models. The values of root mean square deviations were observed less than 0.040 by all three semiempirical models. The mole fraction solubility of natural isatin was found to be highest in pure Carbitol (5.20 × 10− 1 at 298.15 K) and lowest in pure water (5.13 × 10− 5 at 298.15 K) at T = (298.15 to 338.15) K. The resulting data of Van't Hoff and Krug analyses showed an endothermic, spontaneous and an entropy-driven dissolution of isatin in all Carbitol + water mixed solvent systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 207, July 2015, Pages 274-278
نویسندگان
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