A Study of the Excess Properties of Aliphatic Chlorinated Compounds with Benzylalcohol at Various Temperatures

Densities and Excess Molar Volumes for the Binary and Ternary Systems of (1,4-Dioxane, 1-Propanol or 2-Propanol, and 1,2-Dichloroethane) at T = (288.15 to 318.15) K. Experimental Measurements and Prigogine–Flory–Patterson Modeling

“…The reduced volume, Ṽ i , of a constituent i , is given where the thermal expansion coefficient, α i , is defined by The characteristic pressure and volume, P i * and V i * , are defined by where the isothermal compressibility κ Ti of a constituent i is given by The values of the pure component parameters, α i , V i * , and P i * , were obtained by Flory theory, whereas those of the thermal compressibility, κ Ti , were calculated by using the equation where the isentropic compressibility, κ S , of each pure component was estimated using the Newton–Laplace equation: The κ Ti values, for pure components, were calculated using our experimental ρ data along with u i and C p i literature values. ,− Table summarizes α i , κ Ti , V i * , and P i * values, used in the PFP model calculations. The interchange parameter, χ 12 , was derived by fitting the V E expression (eq ) to our experimental V E values, at 298.15 K.…”

“… a V i 0 , molar volume; α i , coefficient of thermal expansion; κ Ti , isothermal compressibility; reduction parameters of volume, V i *, and pressure, P i *. b This work. c Calculated using experimental ρ data along with C p and u literature values. ,− …”

Densities and Excess Molar Volumes of the Ternary System (1,4-Dioxane + 2-Propanol + 1,1,2,2-Tetrachloroethane) at T = 288.15–318.15 K and at Atmospheric Pressure: Experimental Measurements and Prigogine–Flory–Patterson Modeling

“… values, for pure components, were calculated using our experimental density values, , whereas those of speed of sound, u i , and those of heat capacity, C pi , were calculated from literature data. 9,12,18,22,[38][39][40][41][42][43][44][45][46][47][48][49][50][51][52] Table 9. It appears, from this table, that the interactional contribution value is negative for the two systems and is predominant in the case of 1,4-dioxane containing mixture.…”

“…The reduced volume, V ̃ i , of a constituent i is given by where the thermal expansion coefficient, α i , is defined by The characteristic pressure and volume, P i * and V i * , respectively, are defined by where the isothermal compressibility κ T i of a constituent i is given by The values of the parameters α i , V i * , and P i * for pure components were estimated from the Flory theory, whereas the thermal compressibility κ T i values were obtained using the equation The Newton–Laplace equation was used to estimate the isentropic compressibility values, κ S , for pure components The κ T i values for pure components were calculated using our experimental density values, ρ, whereas those of speed of sound, u i , and heat capacity, C p i , were calculated from the literature data. ,,,,− All the α i , κ T i , V i * , and P i * values, which were used in PFP calculation, are summarized in Table . The interchange parameter, χ 12 , was derived by fitting the V E expression (eq ) to our experimental V E values at T = 298.15 K. The adjusted values of χ 12 and the calculated three contributions to the V E values at equimolar fraction are reported in Table .…”

Determination of Various Properties of Ethyl Actetate + n-Butanol Binary Mixture at Different Temperatures

“…Positive G E is indicative of strong molecular interaction [22,23]. Several attempts have been made by various workers [24][25][26][27][28] relate G E to chemical interaction. However, G E and η E are affected by different contributions where relative significance appears to vary with the chemical nature and the type of interacting molecules.…”