Excess Molar Volumes and Viscosity Deviations of Binary Mixtures of 2,4,6-Trimethyl-1,3,5-trioxane + Ethanol, 1-Propanol, and 1-Butanol at (298.15, 303.15, and 308.15) K

Abstract

Densities and viscosities of binary mixtures of 2,4,6-trimethyl-1,3,5-trioxane + ethanol, 1-propanol, and 1-butanol have been measured at (298.15, 303.15, and 308.15) K. From these measurements, excess molar volumes (V E ) and viscosity deviations (δη) were calculated. These results were fitted to the RedlichKister polynomial. The results were discussed in terms of molecular interactions.

Excess Molar Quantities of Binary Mixture of Dipropyl amine with Aliphatic Alcohols at 298.15 K

“…The familiarity of the excess parameters of organic liquid blends is salutary in industrial enforcements and is highly significant for understanding the molecular interactions between the components this as well assist to develop theoretical patterns [1][2][3] . The experimental conclusions are adduced in this paper for the binary system of dipropyl amine with 1-alkanols and tert-pentyl alcohol at 298.15 K. These conclusions expose the cross-association between alkanol and amine molecules down the identical conditions [4][5][6] . Also the conclusions display the steric hindrance of methyl groups.…”

Molecular interactions in (2,4,6-trimethyl-1,3,5-trioxane+n-alkyl acetates) at T=(298.15, 303.15, and 308.15)K

“…According to the method suggested by Hagenbach (AVS 350, Viscosity measuring system, Introduction Manual Schott Gerate Hofheim, IS Germany 1986), replicate experiments were performed (five times) for each solution and the results were averaged. The uncertainty in viscosity measurement was ±3 AE 10 À3 mPa AE s. The experimental technique for density and viscosity measurements was same as described in our previous paper [7,8]. For all the measurements, temperature was controlled by circulating the water through an ultra thermostat JULABO F-25 (made in Germany).…”

“…15, 293.15, 298.15, 303.15, and 308.15) K [6], propylene carbonate with n-alcohols at 298.15 K [7] and 2,4,6-trimethyl-1,3,5-trioxane with ethanol, 1-propanol, and 1-butanol at T = (298. 15, 303.15, and 308.15) K [8].…”

Viscosities, Ultrasonic Velocities at (288.15 and 298.15) K, and Refractive Indices at (298.15) K of Binary Mixtures of 2,4,6-Trimethyl-1,3,5-trioxane with Dimethyl Carbonate, Diethyl Carbonate, and Propylene Carbonate

“…Moreover, excess thermodynamic properties are used as important parameters for understanding molecular interactions. Earlier we reported − density and viscosity studies of binaries of paraldehyde + propylene carbonate at (288.15, 293.15, 298.15, 303.15, and 308.15) K, propylene carbonate, + n -alkanols at 298.15 K, and 2,4,6-trimethyl-1,3,5-trioxane + ethanol, 1-propanol, and 1-butanol at (298.15, 303.15, and 308.15) K. As part of the experimental investigation of the excess thermodynamic properties of industrially important liquids, we report in the present study, along with previously determined values of densities and viscosities of the system paraldehyde + propylene carbonate, the viscosity deviations ( δ η), excess molar isentropic compressibility ( ), and refractive index deviations ( Δ n D ) for binary mixtures of the above-mentioned systems at (288.15 and 298.15) K.…”