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Papers by hamide amiri
Journal of Solution Chemistry, 2010
The dielectric constants (relative permittivities) of water, methanol, ethanol, butanol and aceto... more The dielectric constants (relative permittivities) of water, methanol, ethanol, butanol and acetone were measured at 91.3 kPa and (283.15 and 293.15) K and are reported here. The dielectric constants were determined by using a new setup based on a low-pass filter. The obtained dielectric constant values are compared with those reported in the literature, and are consistent with those reported in the literature. The obtained dielectric constant data were also compared with those calculated by the Kirkwood model. The comparisons indicated that Kirkwood model can be successfully used for calculation of dielectric constants of the pure fluids.
Journal of Chemical Thermodynamics, 2009
ABSTRACT
Journal of Chemical Thermodynamics, 2009
The effects of an external electromagnetic field on the binodal curve of the (water+propionic aci... more The effects of an external electromagnetic field on the binodal curve of the (water+propionic acid+dichloromethane) ternary system was investigated at 91.3kPa and T=(294.15 and 284.15)K. The experimental binodal curve values for the ternary system were obtained by the cloud point method using a new setup with a flat capacitor. The effects of variation of frequencies and amplitude of voltages of the applied external electromagnetic field on the binodal curve results have been evaluated. The results obtained indicate that the heterogeneous two-phase area increases with increasing frequency of the applied external electromagnetic field. At constant frequency, a similar effect has been found by increasing the amplitude of the voltage of the applied external electromagnetic field. The comparison between the results obtained for this work with those reported in previous work indicates that the treatment efficiency in liquid–liquid extraction process of (water+propionic acid+dichloromethane) ternary system can be governed by the applied external electromagnetic field.
Journal of Solution Chemistry, 2010
The dielectric constants (relative permittivities) of water, methanol, ethanol, butanol and aceto... more The dielectric constants (relative permittivities) of water, methanol, ethanol, butanol and acetone were measured at 91.3 kPa and (283.15 and 293.15) K and are reported here. The dielectric constants were determined by using a new setup based on a low-pass filter. The obtained dielectric constant values are compared with those reported in the literature, and are consistent with those reported in the literature. The obtained dielectric constant data were also compared with those calculated by the Kirkwood model. The comparisons indicated that Kirkwood model can be successfully used for calculation of dielectric constants of the pure fluids.
Journal of Chemical Thermodynamics, 2009
ABSTRACT
Journal of Chemical Thermodynamics, 2009
The effects of an external electromagnetic field on the binodal curve of the (water+propionic aci... more The effects of an external electromagnetic field on the binodal curve of the (water+propionic acid+dichloromethane) ternary system was investigated at 91.3kPa and T=(294.15 and 284.15)K. The experimental binodal curve values for the ternary system were obtained by the cloud point method using a new setup with a flat capacitor. The effects of variation of frequencies and amplitude of voltages of the applied external electromagnetic field on the binodal curve results have been evaluated. The results obtained indicate that the heterogeneous two-phase area increases with increasing frequency of the applied external electromagnetic field. At constant frequency, a similar effect has been found by increasing the amplitude of the voltage of the applied external electromagnetic field. The comparison between the results obtained for this work with those reported in previous work indicates that the treatment efficiency in liquid–liquid extraction process of (water+propionic acid+dichloromethane) ternary system can be governed by the applied external electromagnetic field.