Viscosities and Excess Molar Volumes for Acetonitrile + Methanol at 298.15, 308.15, and 318.15 K

Saha, Nirmal; Das, Bijan; Hazra, Dilip K.

doi:10.1021/je00022a026

Cited by 66 publications

(39 citation statements)

References 16 publications

(18 reference statements)

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“…Sample identification numbers, i = 1, 2, 3, …, were given to the samples from 0 to 100 wt%, respectively. The concentrations were converted from weight percentage (wt%) to molarity values c (mol/L) using density data from the literature (CCl 4 , 21 C 2 Cl 4 , 22 acetonitrile, 23 acetone, 24 1,4-dioxane, 25 THF 26 ). However, since the density data of the methanol-solvent mixtures were available only for the ordinary solvents, the densities of methanol-deuterated solvent mixtures were estimated as follows.…”

Section: Methodsmentioning

confidence: 99%

Near-Infrared (NIR) Study of Hydrogen Bonding of Methanol Molecules in Polar and Nonpolar Solvents: An Approach from Concentration-Dependent Molar Absorptivity

et al. 2014

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Differences in the hydrogen-bonding states of methanol in polar and nonpolar solvents were studied by using the first overtone of O-H stretching vibrations observed in the near-infrared (NIR) band ranging from 7500 to 6000 cm(-1). To eliminate the absorption of solvents, NIR-inactive nonpolar solvents carbon tetrachloride (CCl4) and tetrachloroethylene (C2Cl4) were chosen, along with deuterium-substituted polar solvents acetone-d6, acetonitrile-d3, 1,4-dioxane-d8, and tetrahydrofuran (THF)-d8. The changes in the hydrogen-bonding states of methanol during mixing with the solvents were estimated using the extended molar absorption spectrum, which was defined as the concentration difference. The extended molar absorption spectra in different concentrations were decomposed into a finite number of independent factors using a multivariate curve resolution-alternating least squares calculation. Two and three such factors were sufficient to reproduce the extended molar absorption spectra for the nonpolar and polar solvents, respectively. The detailed assignments of each factor were estimated using the calculated loadings and scores. A similarity analysis was also applied to the extended molar absorption spectra of methanol and effectively quantified the deviation from the spectrum of pure methanol. The methanol and solvent affinities were also compared.

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Section: Methodsmentioning

confidence: 99%

Near-Infrared (NIR) Study of Hydrogen Bonding of Methanol Molecules in Polar and Nonpolar Solvents: An Approach from Concentration-Dependent Molar Absorptivity

et al. 2014

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“…Various acoustical properties such as isentropic compressibility, intermolecular free-length, and relative association are very useful in understanding the molecular interactions between unlike molecules in liquid mixtures. Mixtures containing acetonitrile with benzene and n-heptane have been studied by Palmer and Smith [1] for investigating excess volumes and excess enthalpies at T = 318.15 K. Aminabhavi and Gopala Krishna [2] have studied the density, viscosity, refractive index, and speed of sound of aquo-acetonitrile systems at T = 298.15 K. Sandhu et al [3] reported excess molar volumes for binary mixtures containing acetonitrile and n-alkanol (C 1 -C 5 ) systems at T = 308.15 K, whereas Saha et al [4] studied viscosities of acetonitrile and methanol binary liquid mixtures at various temperatures. Nikam et al [5] utilised the density and viscosity data of acetonitrile and various primary and secondary alcohols at different temperatures to explain the molecular interactions, while Ku and Tu [6] that of acetonitrile and 1-chlorobutane.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic studies on binary mixtures of some aromatic ketones with acetonitrile at T=308.15K

Tangeda

Boodida

Nallani

2006

The Journal of Chemical Thermodynamics

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“…(3) and it is a measure of ion-solvent interactions [19,20]. The values of A were determined from intercept and this is a measure of ion ion inter actions [21].…”

Section: Resultsmentioning

confidence: 99%

The density, viscosity and structural properties of aqueous ethambutol hydrochloride solutions

Deosarkar

Puyad

Kalyankar

2012

Russ. J. Phys. Chem.

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Ethambutol (EMB) is a bacteriostatic antimycobacterial drug prescribed to treat tuberculosis. It is bacteriostatic against actively growing TB bacilli. The density and viscosity of aqueous ethambutol hydro chloride solutions have been studied at 298.15, 301.15 and 304.15 K and at different concentrations (0.255, 0.168, 0.128, 0.087, 0.041, and 0.023 mol dm -3 ). The apparent molar volume of these solutions for different temperatures and concentrations was calculated from the density data. The relative viscosities of drug solu tions have been analysed by Jones-Dole equation. The limiting apparent molar volumes have been evaluated for different temperatures. The different properties have been used to study structural properties, structure formation and breaking properties of drug and solute-solvent interactions in solutions.

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Viscosities and Excess Molar Volumes for Acetonitrile + Methanol at 298.15, 308.15, and 318.15 K

Cited by 66 publications

References 16 publications

Near-Infrared (NIR) Study of Hydrogen Bonding of Methanol Molecules in Polar and Nonpolar Solvents: An Approach from Concentration-Dependent Molar Absorptivity

Near-Infrared (NIR) Study of Hydrogen Bonding of Methanol Molecules in Polar and Nonpolar Solvents: An Approach from Concentration-Dependent Molar Absorptivity

Ultrasonic studies on binary mixtures of some aromatic ketones with acetonitrile at T=308.15K

The density, viscosity and structural properties of aqueous ethambutol hydrochloride solutions

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