Thermodynamic Properties Of Ternary Mixtures Research Articles

Thermodynamic properties of ternary mixtures of propyl propanoate with n-heptane and n-octane at several temperatures

Abstract Densities, speeds of sound and surface tensions were measured for the ternary mixtures of propyl propanoate + n-heptane + n-octane at atmospheric pressure and at different temperatures (T = 288.15 - 308.15 K) using mechanical oscillation densimetry and falling drop tensiometry. From experimental data, excess molar volume, speed of sound deviation and surface tension deviation were calculated and satisfactorily fitted by the equation of Cibulka. Additionally, the derived properties were predicted with the geometric solution models proposed by Kohler, Jacob and Fiztner and Radojkovic et al.

Measurement and correlation of thermodynamic properties of ternary mixtures of oxygenated fuel

Oxygenated fuels are of great interest as these are more energy efficient and environment friendly. Therefore, thermodynamic properties like density, ultrasonic speed and refractive indices of diisopropyl ether+benzene+n-hexane mixtures were measured experimentally at 298.15 K, 308.15 K and 318.15 K. Excess properties like volume ( $$V_m^E$$ ), isentropic compressibility ( $$K_S^E$$ ), intermolecular free length ( $$L_f^E$$ ) as well as deviation in ultrasonic speed (Δu) and refractive index (Δn) of these mixtures were derived from experimental data. The $$V_m^E$$ values were also fitted to the Singh, Cibulka and Nagata equations, and the same were also predicted using Prigogine-Flory-Patterson theory and four geometrical models from constituent binary $$V_m^E$$ data. The u data were correlated by Nomato, van Dael, impedance dependence correlations and CFT theory at 298.15 K. $$L_f^E$$ and $$V_a^E$$ were also calculated using Jacobson free length theory at 298.15 K. The n data were also predicted by Arago-Biot, Gladstone-Dale, Weiner, Heller, Newton, Eyring and John mixing rules.

Measurement and prediction of thermodynamic properties of ternary mixtures containing [Bmim][BF4] - [Emim][BF4] – cyclopentanone or cyclohexanone

In this study, excess molar enthalpies, H123E and molar heat capacities, (CP)123 of ternary [Bmim][BF4] (1)+[Emim][BF4] (2)+cyclopentanone or cyclohexanone (3) mixtures (as a potential solvent system for heat transfer processes) have been measured over the entire range of composition. The (CP)123 and H123E measurements have been carried out over temperature range 293.15K to 308.15K with 5K interval and 298.15K respectively. The observed (CP)123 data have been utilized to determine excess heat capacities, (CPE)123. While H123Evalues for investigated mixtures are negative, (CPE)123 are positive over entire mole fraction range of (1) and (2) components. The H123E and (CPE)123 data of the present mixtures have also been tested in terms of Graph theory. It has been observed that H123E and (CPE)123 values calculated by Graph theory are in comparison with the experimental data.

Thermodynamic properties of ternary mixtures containing 1-ethyl-3-methylimidazolium tetrafluoroborate with cyclic amides and cyclopentanone or cyclohexanone at T = (293.15, 298.15, 303.15 and 308.15) K

The density, ρijk and speed of sound, uijk of ternary {1-ethyl-3-methylimidazolium tetrafluoroborate (i)+pyrrolidin-2-one} or {1-methyl pyrrolidin-2-one (j)+cyclopentanone or cyclohexanone (k)} mixtures have been measured at temperatures (293.15, 298.15, 303.15, 308.15)K. The excess molar volume, VijkE and excess isentropic compressibility, κSEijk (obtained by employing density and speed of sound data) have been fitted to Redlich–Kister equation to determine ternary adjustable parameters along with their standard deviations. The VijkE and κSEijk results have been tested in terms of Graph and Prigogine–Flory–Patterson (PFP) theories. The results indicate that VijkE and κSEijk values calculated by Graph theory are comparable to the experimental values.

Excess Thermodynamic Properties of Ternary Mixtures of N-Methylcyclohexylamine and Toluene with 1-Alcohols

Abstract Excess volume and speed of sound data for the ternary mixtures were reported at 303.15 K over the entire composition range for three ternary mixtures containing N-methylcyclohexylamine and toluene as common components and 1-alcohols as third component, namely 1-propanol, 1-butanol, and 1-pentanol. The experimental speed of sound and density of ternary mixtures were used to compute isentropic compressibility (ḱs123) and the quantity Δks123, the difference between measured value and that computed from the constituent binary data. Further, the experimental ternary excess volume data were compared with calculated data obtained by empirical relations proposed by Redlich–Kister, Kohler, Tsao–Smith, and Hwang. The results were analyzed on the basis of intermolecular interactions between component molecules and also in terms of constituent binary data.

Modelling polylactide/water/dioxane systems for TIPS scaffold fabrication

The representation of liquid–liquid equilibria (LLE) in ternary systems composed by water, 1,4-dioxane and different grades of poly(lactic acid) (PDLLA and PLLA), has been addressed through the PC-SAFT equation of state (EoS), in which the scheme of induced association is used to represent the interaction between solvent (dioxane) and non-solvent (water). The model parameters devoted to the description of pure component properties, as well as those pertinent to the representation of thermodynamic behaviour of solvent/non-solvent mixtures, were tuned on the basis of specific pressure–volume–temperature (PVT) data for the corresponding systems. Only the binary parameters for polymer–solvent and polymer/non-solvent pairs were adjusted to obtain a useful representation of experimental LLE data for the ternary systems. A suitable description of the thermodynamic properties of ternary mixtures was obtained using temperature-independent binary interaction parameters in the range 25–80°C, and the consistency of the approach in the entire composition range was verified against experimental solubility data specifically measured for the polymer/non-solvent pair. The model shows good ability in the description of the thermodynamic properties of the system and it represents a reliable tool for the prediction of LLE also at conditions different from those considered for its set-up. This approach thus represents a useful designing tool for processes, such as thermally induced phase separation (TIPS), used in the preparation of microporous polymeric scaffolds.

Thermodynamic Properties of Ternary Mixtures Containing Ionic Liquid and Organic Liquids: Excess Molar Volume and Excess Isentropic Compressibility

Densities, ρ123, and speeds of sound, u123, of 1-ethyl-3-methylimidazolium tetrafluoroborate (1) + 2-methylaniline (2) + pyridine or α-, β-, or γ-picoline (3) ternary mixtures have been measured over the entire range of composition at 293.15 K, 298.15 K, 303.15 K, and 308.15 K using density and speed of sound analyzer (Anton Paar DSA 5000). The heat capacity, Cp, of pure liquids pyridine and α-, β-, and γ-picoline have also been measured at 293.15 K, 298.15 K, 303.15 K, and 308.15 K using differential scanning calorimeter. The measured data have been employed to determine excess molar volumes, V123E and excess isentropic compressibilities,(κSE)123. The V123E and(κSE)123 data have been fitted to Redlich–Kister equation to calculate ternary adjustable parameters and standard deviations. The thermodynamic properties of the ternary mixtures have been analyzed in terms of Graph (which deals with the topology of the constituent of mixtures) and Prigogine-Flory-Patterson (PFP) theories. It has been observed that...

Thermodynamic Properties of Ternary Mixtures Containing Ionic Liquids and Organic Solvents

The densities, ρ, speed of sound, u, heat capacities, Cp of pure 1-ethyl-3-methylimidazolium tetrafluoroborate, 1-methyl pyrrolidin-2-one, pyrrolidin-2-one, pyridine and ternary mixtures of 1-ethyl-3-methylimidazolium tetrafluoroborate (1) + 1-methyl pyrrolidin-2-one or pyrrolidin-2-one (2) + pyridine (3) and their binary mixtures of 1-methyl pyrrolidin-2-one or pyrrolidin-2-one (2) + pyridine (3) have been measured as a function of composition at (293.15, 298.15, 303.15, and 308.15) K and atmospheric pressure. The observed densities and speeds of sound data have been employed to determine excess molar volumes, VE and excess isentropic compressibilities, κSE of the investigated mixtures. The observed thermodynamic properties of the binary as well as ternary mixtures have been calculated by utilizing the topology of the constituents of mixtures (graph theory). It has been observed that graph theory successfully describes well the VE and κSE data of the studied binary and ternary ionic liquid mixtures.

Densities and derived thermodynamic properties of ternary mixtures 1-butyl-3-methyl-imidazolium tetrafluoroborate + ethanol + water at seven pressures and two temperatures

This work is a continuation of our studies on experimental measurements of physical properties on binary mixtures of the ionic liquid (IL) family 1-alkyl-3-methyl imidazolium tetrafluoroborate (CnMIM-BF 4) with water and ethanol. Here, we present density for the ternary system Butyl-MIM-BF 4 + ethanol + water at two temperatures (298.15 K and 323.15 K) and seven pressures (from 0.1 to 30 MPa). It should be noted that BMIM-BF 4 is the only IL of the family CnMIM-BF 4 that can be mixed with water and ethanol in all range of concentrations at room conditions. From the density data measured in function of pressure and temperature other important derived thermodynamic properties can be calculated, such us excess molar volumes, isothermal compressibility, isobaric expansion and the thermal pressure coefficients. These properties for selected ternary mixtures will be discussed and compared with data from the scarce number of published results for similar ternary mixtures with this same IL.

Thermodynamic properties of ternary fluid mixtures from the improved perturbation theory and van der Waals one-fluid theory—I. Model mixtures

In this paper, we present a first-order hard sphere perturbation theory of nonideal ternary fluid mixtures. Results are reported for total and excess thermodynamic properties of three ternary mixtures, in which size parameters of the mixture components are the same, but energy parameters differ significantly. Comparisons of theoretical predictions with accurate simulation results for mixture density, internal energy, excess Gibbs free energy, excess volume and excess enthalpy show the very good performance of perturbation theory. We have also checked the accuracy of van der Waals one-fluid theory, which uses an accurate equation of state for the pure fluids. Van der Waals one-fluid theory is successful in predicting excess properties of nearly ideal to moderately nonideal mixtures, but becomes less reliable when the mixtures become highly nonideal. In general, perturbation theory is very reliable in predicting thermodynamic properties of ternary mixtures, and is found to be more accurate than van der Waals one-fluid theory.

ChemInform Abstract: THERMODYNAMIC PROPERTIES OF TERNARY MIXTURES

Chemischer InformationsdienstVolume 12, Issue 29 Article ChemInform Abstract: THERMODYNAMIC PROPERTIES OF TERNARY MIXTURES R. P. RASTOGI, R. P. RASTOGISearch for more papers by this author R. P. RASTOGI, R. P. RASTOGISearch for more papers by this author First published: July 21, 1981 https://doi.org/10.1002/chin.198129096Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume12, Issue29July 21, 1981 RelatedInformation

Thermodynamic properties of ternary mixtures. 2. The excess volumes of mixing of ternary mixtures of cyclohexane, aromatics, and halomethanes

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermodynamic properties of ternary mixtures. 2. The excess volumes of mixing of ternary mixtures of cyclohexane, aromatics, and halomethanesR. P. Rastogi, Jagan Nath, and Shiva Saran DasCite this: J. Chem. Eng. Data 1977, 22, 3, 249–252Publication Date (Print):July 1, 1977Publication History Published online1 May 2002Published inissue 1 July 1977https://doi.org/10.1021/je60074a018RIGHTS & PERMISSIONSArticle Views186Altmetric-Citations88LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (353 KB) Get e-Alerts Get e-Alerts

Thermodynamic properties of ternary mixtures. I. Volumes of mixing of quinoline + carbon tetrachloride + cyclohexane and benzene + carbon tetrachloride + cyclohexane

Thermodynamic properties of ternary mixtures. I. Volumes of mixing of quinoline + carbon tetrachloride + cyclohexane and benzene + carbon tetrachloride + cyclohexane