توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Dielectric study on binary mixture of 2 – butanol with, 2–ethyl–1– hexanol at T=298.2 ,308.2 , 318.2K.
اطلاعات انتشار: سومین کنفرانس تخصصی ترمودینامیک، سال
تعداد صفحات: ۵
The interaction between the molecules of 2–butanol (sec–BuOH),2–ethyl–1–hexanol (2EH), was studied at static frequency. Static permittivity at three different temperatures was computed for the above system.Permittivity at static frequency was measured at different concentrations of the mixtures at different temperatures and they were used to calculate dielectric parameters such as Kirkwood correlation factor , excess permittivity, Bruggeman parameter.<\div>

۲Dielectric data of binary mixtures of 1,2–butandiol with 1,4– dioxane at T = (298.2, 308.2 and 318.2) K
اطلاعات انتشار: سومین کنفرانس تخصصی ترمودینامیک، سال
تعداد صفحات: ۴
Relative permittivity measurements were made on binary mixtures of (1,2–butandiol + 1,4–dioxane) for various concentrations at T = 298.2 K, 308.2 K and 318.2 K. The molecular dipole moments were determined using Guggenheim–Debye method in the temperature range of (298.2 to 318.2) K. The variations of effective dipole moment and correlation factor, g, with the mole fraction in these materials were investigated using Kirkwood–Frohlich equation. The pure compounds showed a negative and small temperature coefficient of effective dipole moment.<\div>

۳Study of Phase Equilibria in Aqueous Mixtures of Phosphoric Acid with an Ester at T=298.15 K
اطلاعات انتشار: پانزدهمین کنگره ملی مهندسی شیمی ایران، سال
تعداد صفحات: ۵
This study demonstrates the experimental solubility and tie–line data for (water + phosphoric acid + hexyl acetate) ternary system at T = 298.15 K and atmospheric pressure for the first time.Data for the binodal curves were determined by cloud–point titration method. The concentration of each phase was determined by acidimetric titration, the Karl Fischer technique, and refractive index measurements. A type–1 liquid liquid equilibrium (LLE) phase diagram was obtained for the ternery system. The experimental tie–line data were correlated using the UNIQUAC model.The reliability of the experimental data was determined through the Hand plot.Distributioncoefficients and separation factors were evaluated over the immiscibility region.<\div>

۴Liquid phase equilibria of (water + phosphoric acid + amyl alcohol) ternary system at T= 298.15 K
اطلاعات انتشار: پانزدهمین کنگره ملی مهندسی شیمی ایران، سال
تعداد صفحات: ۵
Liquid–liquid equilibrium (LLE) data are investigated for mixtures of (water + phosphoric acid + amyl alcohol) at 298.15K and atmospheric pressure. The solubility curves and the tie–line end compositions of liquid phases at equilibrium were determined. The result show that this ternary mixture is type one liquid–liquid equilibrium system. The distribution coefficients and the selectivity factors for the immiscibility region are calculated. The reliability of the experimental tie–lines was confirmed by using Hand correlation. By modeling the above system, binary interaction parameters of the NRTL thermodynamic model was estimated. The NRTL model correlates the LLE data for T=298.15K with a root mean square deviation of 3.46 %, between the observed and calculated mole concentrations. It is concluded that amyl alcohol may serve as an adequate solvent to extract phosphoric acid from its dilute aqueous solution<\div>

۵PHASE EQUILIBRIUM DATA FOR THE MIXTURES OF (WATER + PROPIONIC ACID + 1–HEPTANOL) AT T= 298.15 K
اطلاعات انتشار: دومین همایش ملی تکنولوژی های نوین در شیمی و پتروشیمی، سال
تعداد صفحات: ۴
This study demonstrates the experimental solubility and tie line data for (water + propionic acid + 1–heptanol) system at T=298.15 K and atmospheric pressure. The cloud–point titration method was used to determine solubility data. The investigated ternary system exhibits type–1 behaviour of liquid–liquid equilibrium (LLE). The tie line data were determined by acidimetric titration, the Karl–Fischer technique, and refractive index measurements. The thermodynamic models UNIQUAC and NRTL were used to correlate the experimental tie–line data. The consistency of the tie–line data was determined through the Othmer–Tobias correlation equation. Distribution coefficients and separation factors were calculated over the immiscibility region<\div>
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