Thermophysical and spectroscopic properties of binary liquid systems

Rahul, D.; Sankar, M. Gowri; Sekhar, M. Chandra; Ramachandran, D.

doi:10.1007/s10973-016-5409-7

Cited by 8 publications

(3 citation statements)

References 39 publications

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“…The ternary excess molar volume ( V m 123 E ) and deviation in isentropic compressibility (Δ k s 123 ) were calculated from the experimental ρ 123 and u 123 data. The purity of acetophenone was verified by comparing our experimental ρ 123 and u 123 data with previous publications, − and the results are given in Table . In our previous publications, , we have carried out a comparison study between experimental densities and speed of sounds of studied ILs and carboxylic acids; hence, they are not repeated here.…”

Section: Methodsmentioning

confidence: 62%

Measurement and Modeling of Thermodynamic Properties for Ternary Mixtures Containing 1-Butyl-3-methylimidazolium-Based Ionic Liquids with Acetophenone and Acetic or Propionic Acid

2021

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In the present work, we obtained density (ρ 123 ), speed of sound (u 123 ), excess molar volume (V m123 E ), and deviation in isentropic compressibility (Δk s123 ) for ternary mixtures of {[BMIM][BF 4 ] (x 1 ) + acetic acid (x 2 ) + acetophenone (x 3 )} (mixture 1), {[BMIM][BF 4 ] (x 1 ) + propionic acid (x 2 ) + acetophenone (x 3 )} (mixture 2), and {[BMIM][PF 6 ] (x 1 ) + acetic acid (x 2 ) + acetophenone (x 3 )} (mixture 3) at temperatures ranging between 293.15 and 333.15 K and at a pressure of 0.1 MPa. V m123 Eand Δk s123 values of the ternary systems were modeled with 9 predictive (no estimated parameter) and 7 correlative terms, leading to a total of 63 evaluated models. Using a standardized deviation (σ), it was possible to estimate the optimal number of parameters in the correlation, which varied from 1 to 11. The average σ for V m123 E mixture 3 was about twice the values for mixtures 1 and 2, even using more parameters for the last mixtures. For Δk s123 , σ is in the same range for the three mixtures, even though only one parameter is used in each temperature for mixture 1 and up to 11 are used in mixtures 2 and 3. These results indicate that nonideality qualitatively is in the order mixture 3 > mixture 2 > mixture 1.

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Section: Methodsmentioning

confidence: 62%

Measurement and Modeling of Thermodynamic Properties for Ternary Mixtures Containing 1-Butyl-3-methylimidazolium-Based Ionic Liquids with Acetophenone and Acetic or Propionic Acid

2021

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“…The purities of all the pure compounds were assessed by comparing our previously measured densities and speeds of sound with those reported in the literature, − and the results are displayed in Table . Table demonstrates that the ρ and u values have a slight variance that falls within the experimental error.…”

Section: Experimental Sectionmentioning

confidence: 99%

Experimental Measurements, Correlation, and Prediction Models to Study 1-Ethyl-3-methylimidazolium Tetrafluoroborate Ionic Liquid Ternary Mixtures

Masilo,

Singh,

Bahadur

et al. 2024

J. Chem. Eng. Data

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Volumetric and acoustic properties were obtained using density, ρ 123 , and speed of sound, u 123 , experimental values for ternary systems of {[EMIM][BF 4 ] (x 1 ) + acetic acid (x 2 ) + acetophenone (x 3 )} (mix 1 ) and {[EMIM][BF 4 ] (x 1 ) + propionic acid (x 2 ) + acetophenone (x 3 )} (mix 2 ) at T = (293.15−333.15) K and 0.1 MPa. The observed V m123 Eand Δk s123 data of the studied ternary mixtures were modeled with a total of 63 evaluated models, which resulted from a sum of each of nine predictive terms (no estimated parameters) with each of seven correlative terms (estimated parameters). The entire model is a correlative model, and if all of the parameters of the correlative term are set to zero, it becomes a predictive model. The ideal number of parameters in the correlation was then approximated using standard deviations (σ). For mix 1 , V m123 E was only negative and Δk s123 was only positive, while for mix 2 both negative and positive results were found for each property. Also, quantitative results point out that mix 1 is closer to ideal behavior than mix 2 . The modeling for mix 2 employed more complex equations, with more parameters, and even so presented worse deviations than for mix 1 . These results evidence the effect of one CH 2 in the acid chain on the thermodynamic properties of these mixtures.

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“…Previous investigations have been carried out on p-chloroacetophenone [3][4][5] and anilines [6][7][8][9] and amines [10,11] have been reported. Literature survey shown that no work has been executed on p-chloroacetophenone and aniline, N-methylaniline and N,N-dimethylaniline at 303.15 to 318.15 K. The effect of molecular size, chain length, shape and extent of molecular association of aromatic and aliphatic amines on volumetric, viscometric and acoustic properties of binary liquid mixtures containing hydrocarbons, esters and alcohols have been studied earlier [12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Partial Molar Volumes and Spectral Studies on Binary Mixtures of p-Chloroacetophenone with Aniline and N-Alkyl Anilines

2019

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Ultrasonic velocities (u), viscosities (η) and densities (ρ) were measured for the binary mixtures of p-chloroacetophenone with aniline, N-methylaniline and N,N-dimethylaniline over the whole range of composition at different temperatures (303.15 K to 318.15 K) and at atmospheric pressure 0.1 MPa. Excess molar volume (V E ), deviation in viscosity (∆η) and deviation in isentropic compressibility (∆ks) have been calculated and fitted to Redlich-Kister polynomial equation to obtain their coefficients and standard deviations. The analyzed viscosity data of binary liquid mixtures were used to test the Grunberg-Nissan, Katti-Chaudari and Hind semi-empirical equations. The FTIR spectral study supports the experimental data to explain the molecular interactions between unlike molecules. Partial molar volumes of binary mixtures were evaluated for better understanding of intermolecular interactions of the above binary mixtures.This is an open access journal, and articles are distributed under the terms of the Attribution 4.0 International (CC BY 4.0) License. This license lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit the author for the original creation. You must give appropriate credit, provide a link to the license, and indicate if changes were made. N-Methylaniline 0.96520 t 2174 Radha Sirija et al. Asian J. Chem.

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Thermophysical and spectroscopic properties of binary liquid systems

Cited by 8 publications

References 39 publications

Measurement and Modeling of Thermodynamic Properties for Ternary Mixtures Containing 1-Butyl-3-methylimidazolium-Based Ionic Liquids with Acetophenone and Acetic or Propionic Acid

Measurement and Modeling of Thermodynamic Properties for Ternary Mixtures Containing 1-Butyl-3-methylimidazolium-Based Ionic Liquids with Acetophenone and Acetic or Propionic Acid

Experimental Measurements, Correlation, and Prediction Models to Study 1-Ethyl-3-methylimidazolium Tetrafluoroborate Ionic Liquid Ternary Mixtures

Partial Molar Volumes and Spectral Studies on Binary Mixtures of p-Chloroacetophenone with Aniline and N-Alkyl Anilines

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