Densities and Excess Molar Volumes of the Binary 1-Propanol + Chloroform and 1-Propanol + Benzene and Ternary 1-Propanol + Chloroform + Benzene Mixtures at (288.15, 293.15, 298.15, 303.15, 308.15, and 313.15) K

Kijevčanin, Mirjana Lj.; Purić, Ivana M.; Radović, Ivona R.; Djordjević, and Bojan D.; Šerbanović, Slobodan P.

doi:10.1021/je700254t

Cited by 15 publications

(10 citation statements)

References 8 publications

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“… a The values in parentheses represent the standard deviations ( n = 27), where T = 293 K, ρ 1 = 0.9982 g mL –1 , and Δ h 1 = 1.02 cm. b See ref . c See ref . d See ref . e See ref . f See ref . g See ref . h See ref . …”

Section: Results and Discussionmentioning

confidence: 99%

Simple and Low-Cost Setup for Measurement of the Density of a Liquid

et al. 2018

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A low-cost and simple setup to measure the densities of liquids is introduced herein. The results and reliability of this setup were evaluated for pure liquids, water−ethanol binary mixtures, and aqueous NaCl solutions. The constructed densitometer provided density values with acceptable relative errors (less than ±3.0%), which were compared to estimates of density from the literature. The favorable agreement is surprising for such a simple and low-cost setup. The facile design lends itself to use in diverse teaching environments to reinforce the ubiquitous concept of density at the secondary-school level and for undergraduate physical-chemistry teaching laboratories.

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Section: Results and Discussionmentioning

confidence: 99%

Simple and Low-Cost Setup for Measurement of the Density of a Liquid

et al. 2018

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“…The application was tested on a set of 270 zeotropic and azeotropic systems of homogeneous binary solutions and 30 non‐homogeneous systems. In addition to the VLE data, values of the excess properties ( v E and h E ) have been used and, also, LLE data of the system studied, extracted from the literature,…”

Section: Results Of the Testmentioning

confidence: 99%

A rigorous method to evaluate the consistency of experimental data in phase equilibria. Application to VLE and VLLE

2017

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This work forms part of a broader study that describes a methodology to validate experimental data of phase equilibria for multicomponent systems from a thermodynamic‐mathematical perspective. The goal of this article is to present and justify this method and to study its application to vapor–liquid equilibria (VLE) and vapor–liquid–liquid equilibria (VLLE), obtained under isobaric/isothermal conditions. A procedure based on the Gibbs‐Duhem equation is established which presents two independent calculation paths for its resolution: (a) an integral method and (b) a differential method. Functions are generated for both cases that establish the verification or consistency of data, δψ for the integral test and δζ for the differential approach, which are statistically evaluated by their corresponding average values [ δtrueψ¯, δtrueζ¯], and the standard deviations [ strue(δψtrue), strue(δζtrue)]. The evaluation of these parameters for application to real cases is carried out using a set of hypothetical systems (with data generated artificially), for which the values are adequately changed to determine their influence on the method. In this way, the requirements of the proposed method for the data are evaluated and their behavior in response to any disruption in the canonical variables (p,T, phase compositions). The conditions for thermodynamic consistency of data are: δtrueψ¯<2, strue(δψtrue)<0.2, δtrueζ¯<5, and s(δξ)<0.2. In systems with VLLE, in addition to the previous criteria, must occur that: δxLLE<0.05 and δTLLE<0.5 K. The new proposed method has been tested with a set of 300 experimental binary systems, biphasic and triphasic, obtained from published bibliography, and the results are compared with those of other tests commonly used for testing thermodynamic consistency. The results show that the greater rigor of the proposed method is mainly due to the simultaneous verification of various independent variables. As a result, the conditions for the new test are verified for fewer systems than using other tests mentioned in the literature (i.e., Fredenslund‐test and direct of Van Ness). Its unique application is sufficient to ensure the consistency of experimental data, without using other tests. © 2017 American Institute of Chemical Engineers AIChE J, 2017

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“…[1][2][3][4][5] In this article, density F measurements of the ternary system of 2-butanol + chloroform + benzene and the 2-butanol + chloroform and 2-butanol + benzene binary constituents at temperatures (288. 15, 293.15, 298.15, 303.15, 308.15, and 313.15) K and atmospheric pressure are presented.…”

Section: Introductionmentioning

confidence: 99%

Densities and Excess Molar Volumes of the Ternary Mixture 2-Butanol + Chloroform + Benzene and Binary Mixtures 2-Butanol + Chloroform, or + Benzene over the Temperature Range (288.15 to 313.15) K

et al. 2008

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Densities and Excess Molar Volumes of the Ternary Mixture 2-Butanol + Chloroform + Benzene and Binary Mixtures 2-Butanol + Chloroform, or + Benzene over the Temperature Range (288.15 to 313.15) K Densities F and excess molar volumes V E of the 2-butanol + chloroform + benzene ternary mixtures and two binaries, 2-butanol + chloroform and 2-butanol + benzene, have been determined. Experimental F measurements have been performed at six temperatures, (288.15, 293.15, 298.15, 303.15, 308.15, and 313.15) K, and atmospheric pressure with an Anton Paar DNA 5000 digital vibrating tube densimeter. Excess molar volumes V E were correlated by the Redlich-Kister equation for binary mixtures and the Nagata-Tamura equation for ternary mixtures.

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Densities and Excess Molar Volumes of the Binary 1-Propanol + Chloroform and 1-Propanol + Benzene and Ternary 1-Propanol + Chloroform + Benzene Mixtures at (288.15, 293.15, 298.15, 303.15, 308.15, and 313.15) K

Cited by 15 publications

References 8 publications

Simple and Low-Cost Setup for Measurement of the Density of a Liquid

Simple and Low-Cost Setup for Measurement of the Density of a Liquid

A rigorous method to evaluate the consistency of experimental data in phase equilibria. Application to VLE and VLLE

Densities and Excess Molar Volumes of the Ternary Mixture 2-Butanol + Chloroform + Benzene and Binary Mixtures 2-Butanol + Chloroform, or + Benzene over the Temperature Range (288.15 to 313.15) K

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