Binary Mixtures Of Anisole Research Articles

Dielectric and Electrical Properties of Binary Mixtures of Anisole and 1-Heptanol in the Frequency Range 20 Hz to 2 MHz

The complex relative dielectric function ε*(ω) = ε’- jε” of anisole (AN), 1-heptanol (1-HeOH) and their binary mixtures of varying concentration have been measured using Precision LCR meter in the frequency range 20 Hz to 2 MHz at 303 K. The electrical/dielectric properties of the liquid samples are represented in terms of intensive quantities namely, complex relative dielectric function ε*(ω), electrical modulus M*(ω), electrical conductivity σ*(ω) and extensive quantities, i.e. complex admittance Y*(ω) and complex impedance Z*(ω). All of these presentations are used to explore various processes contributed in the electrical/dielectric properties of the mixtures of two polar liquids.

Dielectric and Electrical Properties of Binary Mixtures of Anisole and Some Primary Alcohols in the Frequency Range 20 Hz to 2 MHz

The complex relative dielectric function ε*(ω) = ε-jε of binary mixture of anisole (AN) with methanol (MeOH) ,1-propanol (1-PrOH), 1-butanol (1-BuOH), 1-heptanol (1-HeOH) of varying concentration have been measured using Precision LCR meter in the frequency range 20 Hz to 2 MHz at 303 K. The electrical/dielectric properties of the liquid samples are represented in terms of intensive quantities namely, complex relative dielectric function ε*(ω), electrical modulus M*(ω), and extensive quantities, i.e. complex admittance Y*(ω) and complex impedance Z*(ω). All of these presentations are used to explore various processes contributed in the electrical/dielectric properties of the mixtures of polar-polar liquids.

Static permittivity, density, viscosity and refractive index of binary mixtures of anisole with 1-butanol and 1-heptanol at different temperatures

Static permittivity, density, viscosity, and refractive index of anisole (AN), 1-butanol (1-BuOH), 1-heptanol (1-HeOH) and binary mixtures of AN with 1-BuOH and 1-HeOH at nine different concentrations, were measured at 303, 313 and 323K temperatures. Measured properties of pure AN, 1-BuOH and 1-HeOH were compared with literature values and they were found to be in good agreement. The investigation of binary mixtures showed a systematic change in static permittivity, density, and viscosity with change in concentration of anisole in the mixture. Measured properties of liquid samples were used to calculate Kirkwood correlation factor and excess parameters such as excess static permittivity, excess molar volume and excess viscosity. Determined parameters have been interpreted in terms of molecular interaction among the molecular species of the binary mixtures.

Dielectric absorption in mixtures of anisole with some primary alcohols at microwave frequency

Dielectric properties of binary mixtures of anisole with methanol (MeOH), 1-propanol (1-PrOH), 1-butanol (1-BuOH) and 1-heptanol (1-HeOH) over an entire concentration range have been studied at a fixed temperature 40°C. The dielectric constant (ε′) and dielectric loss (ε″) of the binary mixtures of polar liquids have been determined at a microwave frequency of 9.1 GHz. The static dielectric permittivity (ε 0) of the liquid samples was also determined using a precision LCR meter. Determined values of static dielectric permittivity (ε 0) and dielectric permittivity (ε*) at 9.1 GHz frequency were used to evaluate relaxation time (τ) and high frequency limit dielectric permittivity (ε ∞). Dielectric parameters were interpreted in terms of molecular interaction between the anisole and alcohol molecules.

Dielectric permittivity, density, viscosity and refractive index of binary mixtures of anisole with methanol and 1-propanol at different temperatures

Static dielectric permittivity, density, viscosity, and refractive index of anisole (AN), methanol (MeOH), 1-propanol (1-PrOH) and binary mixtures of AN with MeOH and 1-PrOH at nine different concentrations, were measured at 303, 313 and 323 K temperatures. Measured properties of pure AN, MeOH and 1-PrOH were compared with literature values and they were found in good agreement. The investigation of binary mixtures showed a systematic change in static dielectric permittivity, density and viscosity with change in concentration of anisole in the mixture. Measured properties of liquid samples were used to calculate Kirkwood correlation factor and excess parameters such as excess dielectric permittivity, excess molar volume and excess viscosity. Determined parameters have been interpreted in terms of molecular interaction among the molecular species of the binary mixtures.

Dielectric and thermodynamic behaviour of binary mixtures of anisole with o-chlorophenol and with o-cresol

The molecular interactions in binary mixtures of anisole with o-chlorophenol and o-cresol have been studied at three different temperatures using dielectric measurements. The static permittivity and the permittivity at optical frequency have also been determined and used to obtain the Kirkwood correlation factors, the Bruggeman parameter, the excess permittivity and the excess free energy for different concentrations of two binary mixtures, namely (1) anisole + o-chlorophenol and (2) anisole + o-cresol. Using the effective Kirkwood correlation factor, parallel and anti-parallel alignments among the dipoles are identified. The corrective Kirkwood correlation factor, the excess permittivity and the Bruggeman parameter are used to explain the interaction between unlike molecules. The temperature dependences of the above parameters are also reported. The investigation shows systematic changes in the dielectric behaviour with variations in concentration and temperature.

PHYSICOCHEMICAL PROPERTIES FOR BINARY MIXTURES OF ANISOLE WITH 1-HEXANOL, 1-HEPTANOL, 1-OCTANOL, 1-NONANOL, AND 1-DECANOL AT 298.15, 303.15, 308.15, AND 313.15 K

Densities (ρ), viscosities (η), and speeds of sound (u) of binary mixtures of anisole with 1-hexanol, 1-heptanol, 1-octanol, 1-nonanol, and 1-decanol over the entire range of mole fraction and at temperatures 298.15, 303.15, 308.15, and 313.15 K and atmospheric pressure have been measured. From the experimental data, excess molar volume (VE), deviations in speed of sound (uD), excess isentropic compressibilities (k), and viscosity deviations (Δη) have been calculated and fitted to the Redlich-Kister type polynomial equation. The viscosity data were correlated with semi-empirical equations. The speeds of sound have been analyzed in terms of collision factor theory (CFT) and free length theory (FLT). The behavior of VE and k, over the entire range of mole fraction, exhibited positive deviations, while uD and Δη showed negative variations.

Thermodynamic interactions in binary mixtures of anisole with ethanol, propan-1-ol, propan-2-ol, butan-1-ol, pentan-1-ol, and 3-methylbutan-1-ol at T=(298.15, 303.15, and 308.15)K

Abstract In this paper, excess thermodynamic functions have been computed from the measured values of density, viscosity, and refractive index at T = (298.15, 303.15, and 308.15) K, ultrasonic velocity at T = 298.15 K over the entire mixture composition range of (anisole with ethanol, propan-1-ol, propan-2-ol, butan-1-ol, pentan-1-ol, or 3-methyl butan-1-ol). Excess molar volume, VE has been calculated from densities, whereas deviations in viscosity, Δη, were computed from the measured viscosities. From ultrasonic velocities, isentropic compressibilities were calculated, from which deviations in isentropic compressibility, Δks have been computed. Lorenz–Lorentz mixture rule was used to compute molar refractivity, R from refractivity index data and from these data, deviations in molar refractivity, ΔR have been computed. Computed thermodynamic quantities have been fitted to Redlich and Kister polynomial equation to derive the coefficients and standard errors between experimental and predicted quantities. Intermolecular interactions between anisole and alkanols have been studied based on the computed excess thermodynamic quantities.

Densities and Viscosities of Binary Mixtures of Anisole with 2-Propanol, 2-Hexanol, 2-Heptanol, and 2-Octanol

The densities and viscosities of binary mixtures of anisole with 2-propanol, 2-hexanol, 2-heptanol, and 2-octanol were measured at 303.15 K, 313.15 K, and 323.15 K over the entire composition range. The excess volumes and the viscosity deviation were calculated at various temperatures. Excess molar volumes were positive for all the systems except the 2-propanol system, and the viscosity deviation was negative for all the investigated systems. Redlich-Kister type equations were fitted to the excess molar volumes and viscosity deviation, and McAllister's three-body and four-body interaction models were also used to correlate the kinematic viscosities.

Speeds of sound and isentropic compressibilities of (anisole + dichloromethane, or 1,2-dichloroethane, or trichloroethene, or tetrachloroethene, or cyclohexane); at T= 303.15 K

Measurements of speeds of sound, u, have been made in binary mixtures of anisole (C 6H 5OCH 3) with dichloromethane (CH 2Cl 2), 1,2-dichloroethane (CH 2ClCH 2Cl), trichloroethane (CHClCCl 2), tetrachloroethene (CCl 2CCl 2), and cyclohexane ( c?C 6H 12) at T= 303.15 K. The densities ρ of the present mixtures have been calculated at T= 303.15 K using the available data on excess molar volumes V m E, whereas the densities ρ* of the pure component liquids have been measured at T= 303.15 K with a pyknometer, and these results are reported. Values of uhave been used to calculate the apparent excess speeds of sound Δ uand the isentropic compressibilities κ Sfor these mixtures. The excess isentropic compressibilities κ S Ehave also been calculated form the values of κ S. The κ S Ehas been found to be slightly positive for { xC 6H 5OCH 3+ (1 − xCH 2ClCH 2Cl)} and { xC 6H 5OCH 3+ (1 − x)CCl 2CCl 2}, and slightly negative for { xC 6H 5OCH 3+ (1 − x)CHClCCl 2}. The κ S Eis slightly positive at low mole fractions of C 6H 5OCH 3, and negative at high mole fractions of C 6H 5OCH 3, for { xC 6H 5OCH 3+ (1 − x) c-C 6H 12}. For { xC 6H 5OCH 3+ (1 − x)CH 2Cl 2}. κ S Eis very slightly positive at low mole fractions of C 6H 5OCH 3, and its shows a negative trend at high mole fractions of C 6H 5OCH 3. Values of κ S Efor the various mixtures are discussed in the light of intermolecular interactions between the components.