کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4907378 1426207 2017 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental solubility of diosgenin and estriol in various solvents between T = (293.2-328.2) K
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Experimental solubility of diosgenin and estriol in various solvents between T = (293.2-328.2) K
چکیده انگلیسی
Solubility measurements at equilibrium were performed for the systems (3β,25R)-spirost-5-en-3-ol (diosgenin) and (16α,17β)-estra-1,3,5(10)-triene-3,16,17-triol (estriol) in at least 12 solvents at atmospheric pressure within the temperature range T = (293.2-328.2 K) using combined digital thermal analysis and thermal gravimetric analysis (DTA/TGA) to determine compositions at saturation. The results were modelled with the NRTL and Tsuboka-Katayma modified Wilson activity coefficient models. The models employed provided a satisfactory correlation of the experimental data. Furthermore melting points and enthalpies of melting of diosgenin and estriol were determined by combined DTA/TGA.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Chemical Thermodynamics - Volume 106, March 2017, Pages 199-207
نویسندگان
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