Excess Molar Volumes of Heptan-1-ol + Pentane, + Hexane, + Heptane, + Octane, and + 2,2,4-Trimethylpentane at T = 293.15 K

Abstract

Excess molar volumes, have been measured using a dilatometric technique for binary mixtures of heptan-1-ol (n-C7H15OH) + pentane (n-C5H12), + hexane (n-C6H14), + heptane (n-C7H16), + octane (n-C8H18), and + 2,2,4-trimethylpentane (2,2,4-TMP) at T = 293.15 K. has been found to be negative throughout the entire range of composition for (x)n-C7H15OH + (1 − x)n-C5H12, + (1 − x)n-C6H14, and + (1 − x)2,2,4-TMP. has been found to be positive at lower mole fractions of n-C7H15OH and negative at higher mole fractions of n-C7H15OH for (x)n-C7H15OH + (1 − x)n-C7H16 and (x)n-C7H15OH + (1 − x)n-C8H18 with an inversion of sign from positive to negative values of occurring at x ∼ 0.18 and x ∼ 0.43, respectively, for these mixtures. has been fitted in a smoothing equation.

Densities and Viscosities of 1-Butyl-3-methylimidazolium Tetrafluoroborate + H2O Binary Mixtures from (303.15 to 353.15) K

“…All values of V E and Δη for the mixtures of water (1) and [BMIM][BF 4 ] (2) were fitted to the Redlich−Kister polynominal equation: − where Y = V E or Δη, A i are adjustable parameters, and x 1 is the mole fraction of water (1). The optimum number of coefficients A i was determined from an examination of variation of standard derivation: n is the number of experimental data, and m is the number of coefficients of the Redlich−Kister equation.…”

Densities and viscosities of binary mixtures of n-decane+1-pentanol, +1-hexanol, +1-heptanol at temperatures from 293.15 to 363.15K and atmospheric pressure

“…For 1-alcohol + n-alkane there are numerous reports on experimental data for excess molar volume or density [18][19][20][21][22][23][24][25][26][27][28][29][30] and viscosity [31][32][33][34][35][36][37][38][39] . Different thermodynamic properties for the binary mixtures with n-decane and 1-pentanol, 1-hexanol, or 1-heptanol have been reported in the literature.…”

Surface Tension of Binary Mixtures of 2,2,4-Trimethylpentane +1-Alkanols from 298.15 to 323.15 K

“…Faneite et al measured the densities of 2,2,4-trimethylpentane + 1-propanol and 1-pentanol at 298.15 K over the whole composition range. Densities and excess molar volumes for 2,2,4-trimethylpentane with 1-propanol were reported at 298.15 and 303.15 K by Hwang et al , The excess molar volumes of 2,2,4-trimethylpentane with 1-heptanol at 293.15 and 298.15 K were reported by Nath et al , The densities, viscosities, and excess mole volumes of 2,2,4-trimethylpentane + 1-propanol, 1-pentanol, 1-hexanol, or 1-heptanol from 298.15 to 323.15K were measured by Wang et al Unfortunately, a survey from the literature shows that there are no reports on the measurements of surface tension for 2,2,4-trimethylpentane + 1-alkanols binary systems.…”