Viscosity of binary mixtures of 1-alkanol+cyclohexane, 2-alkanol+cyclohexane and 1-alkanol+methylcyclohexane at 303.15 K

Oswal, S.L.; Prajapati, K.D.; Oswal, P.; Ghael, N.Y.; Ijardar, Sushma P.

doi:10.1016/j.molliq.2004.05.004

Cited by 80 publications

(11 citation statements)

References 38 publications

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“…In this work, we have measured experimental densities and viscosities for binary mixtures of 1-pentanol + 2-pentanol, 1-pentanol + 2-methyl-1-butanol, and 2-pentanol + 2-methyl-1-butanol from (288.15 to 328.15) K at 0.1 MPa over the entire composition range. Density and viscosity measurements of pure pentanol isomers are compared with values reported in the literature, ,− as shown in Table . The average absolute percentage deviations (AAPD) between our density measurements and literature values are (0.035, 0.036, and 0.103) % for 1-pentanol, 2-pentanol, and 2-methy1-butanol, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Densities and viscosities have been measured for 1-butanol, ,,,, 2-butanol, ,− isobutyl alcohol, − tert -butanol, ,− 1-pentanol, ,− 2-pentanol, ,,− and 2-methyl-1-butanol ,,,− at different temperatures and atmospheric pressure. Bravo-Sánchez et al , measured the density and viscosity of binary mixtures of butanol isomers from (308.15 to 343.15) K at 0.1 MPa.…”

Section: Introductionmentioning

confidence: 99%

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Densities and Viscosities for Binary Liquid Mixtures of Pentanol Isomers from (288.15 to 328.15) K at 0.1 MPa

et al. 2019

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This paper presents densities and viscosities of binary mixtures of 1pentanol + 2-pentanol, 1-pentanol + 2-methyl-1-butanol, and 2-pentanol + 2-methyl-1-butanol from (288.15 to 328.15) K over the entire concentration range at atmospheric pressure. Experimental densities and viscosities are measured using a vibrating tube densimeter and a glass capillary viscometer, respectively. The relative standard uncertainties estimated in the density and viscosity were 4.8 × 10 −4 and 0.01, respectively. Densities and viscosities of the binary mixtures are compared with the limits established by the diesel fuel standard (EN 590). The binary mixtures of 1pentanol + 2-methyl-1-butanol, and 2-pentanol + 2-methyl-1-butanol could be considered as alternative substitutes for diesel fuel. Excess molar volume values suggest that these mixtures behave as ideal solutions. Viscosity deviations are negative for all of the mixtures investigated in this study. The Redlich−Kister equation is used to represent the behavior of the excess molar volumes and viscosity deviations as a function of the composition. The Nava-Ri ́os and McAllister equations correlate the kinematic viscosity values with an average absolute percentage deviation of 0.139% and 0.203%, respectively.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Densities and Viscosities for Binary Liquid Mixtures of Pentanol Isomers from (288.15 to 328.15) K at 0.1 MPa

et al. 2019

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“…From the measured values of , , u, the thermodynamic acoustic parameters such as s , L f , Z, i , V f , V m , V a , have been computed for all the three alkanol binary mixtures as the molefraction of DEE using the following standard expressions [10][11][12][13][14][15][16] and are listed in Table 1. DEE mole fraction …”

Section: Resultsmentioning

confidence: 99%

Studies on molecular interaction in binary mixtures of diethyl ether with some alkanols – an acoustic approach

Dash

Pradhan²,

Dalai³

et al. 2012

Physics and Chemistry of Liquids

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The viscosity (), density () and ultrasonic velocity (u) of pure diethyl ether (DEE) and three alkanols, namely methanol, n-propanol and n-butanol, and their binary mixture with DEE as a common component have been experimentally measured at 303.16 K under atmospheric pressure. The experimentally measured parameters were employed to compute the values of isentropic compressibility ( s ), intermolecular free length (L f ), molar volume (V m ), acoustic impedance (Z), available volume (V a ), free volume (V f ), internal pressure ( i ) and the viscous relaxation time (). Furthermore, the deviation functions such as DV m , DV f , DV a , D, DL f , D s , DZ, D i were estimated in the entire range of DEE molefraction. The compositional variation of deviation functions were correlated to the Redlich-Kister-type polynomial equation. The sign and magnitude of deviation parameters have been interpreted in terms of H-bonding, proper interstitial accommodation in the structural process and the dipole-dipole type of molecular interactions between DEE and alkanol molecules. Theoretical values of ultrasonic velocity in all three binary mixtures have been estimated using five different empirical relations, such as Nomoto's relation, Junjie's relation, Rao's relation, Van Deal-Vageel's ideal mixing relation and impedance dependence relation. The relative merit of these relations with the measured values of ultrasonic velocity is discussed in this article. IntroductionIn continuation of our earlier work [1] on studies of molecular interactions in binary mixtures of diethyl ether (DEE) with some apolar solvents, the present investigation is extended to binary mixtures of DEE with some aliphatic alkanols using ultrasonic probe. DEE is an important nuclear extractant, which is of particular interest in the reactor technology. Evaluation of acoustic parameters, such as ultrasonic velocity, intermolecular free length, acoustic impedance and other related thermodynamic quantities, find wide range of applications in elucidating useful information for

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“…On the basis of the theory of absolute reaction rates [22], the excess free energies of activation ∆G #E for viscous flow have been calculated using the equation [23,24] :…”

Section: Excess Free Energymentioning

confidence: 99%

Molar Interactions of Some Aromatic Hydrocarbons in n-Heptane by Viscometric Measurements at 298.15K

Hossain

Rahaman

Akhtar

2018

The Chittagong Univ. J. Sci.

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The viscosities, η , of pure n-heptane, toluene, o-xylene, mesitylene, and some of their binary mixtures covering the whole composition range have been measured at 298.15K. Deviations in viscosity, ∆η , was calculated using experimental results. The concentration dependencies of η were correlated to polynomial expressions, whereas, ∆η were fitted to the Redlich–Kister equation. Moreover, the values of the excess Gibbs free energy of activation, ∆G#E, of these mixtures were determined. Viscosity measurements of the binary systems were correlated with Grunberg and Nissan the three-body and four-body McAllister expressions. In all systems, ∆η were found to be negative in the whole range of composition with a single lobe having minimum at 0.6 mple fraction of aromatic hydrocarbon. While dispersive forces are suggested to dominate in n-heptane + toluene, for the other two systems ‘favourable geometric fitting’ overpowers them due to the increasing number of – CH3 groups in the relevant aromatic hydrocarbons. The Chittagong Univ. J. Sci. 40 : 97-110, 2018

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Viscosity of binary mixtures of 1-alkanol+cyclohexane, 2-alkanol+cyclohexane and 1-alkanol+methylcyclohexane at 303.15 K

Cited by 80 publications

References 38 publications

Densities and Viscosities for Binary Liquid Mixtures of Pentanol Isomers from (288.15 to 328.15) K at 0.1 MPa

Densities and Viscosities for Binary Liquid Mixtures of Pentanol Isomers from (288.15 to 328.15) K at 0.1 MPa

Studies on molecular interaction in binary mixtures of diethyl ether with some alkanols – an acoustic approach

Molar Interactions of Some Aromatic Hydrocarbons in n-Heptane by Viscometric Measurements at 298.15K

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