Densities of (2-butanol +n-hexane + 1-butylamine) atT= 298.15 andT= 313.15 K: excess and partial excess molar volumes and application of the ERAS model

Prediction of thermophysical and transport properties of ternary organic non-electrolyte systems including water by polynomials

“…Calculation of V E performed by empirical models showed that satisfactory predictions were obtained by the symmetric equations of Radojković et al Dominguez et al 46 measured density of the ternary system 2-butanol + + n-hexane + 1-butylamine at 298.15 and 313.15 K. The V E values were calculated by the Redlich-Kister and other empirical models given in Table II. The V E values of this ternary system were characterized by (i) negative values in the region where interactions between the hydroxyl (-OH) and amino (-NH 2 ) groups dominated (small mole fraction of n-hexane), (ii) positive values in regions were the rupture of the associated structure of 2-butanol in the mixture with n-hexane occurred and (iii) when the mole fraction of n-hexane increased the brakeage of cross-hydrogen bonding (OH-NH 2 ), leading to positive values of V E in the region of low fractions of the other two components.…”

Influence of Hydroxyl Group Position and Temperature on Thermophysical Properties of Tetraalkylammonium Hydroxide Ionic Liquids with Alcohols

“…1-butanol, 2-butanol and 2-methyl-2-propanol were obtained from Merck >99% of purity and stored over freshly activated 3 Å molecular sieves and were purified by the standard method described by Riddick et al [42] . A comparison is made for the pure alcohols in Table 1 between the experimental ρ and u values determined in the present study and those reported in the literature [31] , [38] , [41] – [50] . ILs were synthesized in laboratory and analysed using 1 H-NMR, the preparation is given below.…”

“…A comparison is made for the pure alcohols in Table 1 between the experimental ρ and u values determined in the present study and those reported in the literature [31], [38], [41]–[50]. ILs were synthesized in laboratory and analysed using 1 H-NMR, the preparation is given below.…”

The development of a response surface model for the determination of infinite dilution partial molar volumes and excess volumes from dilute multi-component data alone. Implications for the characterization of non-isolatable solutes in complex homogeneous reactive systems

“…These solutes were degassed ultrasonically just before used. Purification and preparation of solutes and solvents is similar to the standard protocols for volumetric measurements (Dominguez et al, 2000;Marino et al, 2001;Orge et al, 1997). The densities of the pure chemicals are compared to literature values in Table 1.…”

“…The values of partial excess molar volumes at infinite dilution of methanol and 2-butanol in n-hexane obtained from this study compared to other studies (Dominguez et al, 2000;Rodriquez et al, 2001; Table 3 Partial excess molar volumes and partial molar volumes at infinite dilution of the solute-i in n-hexane at T = 298.15 K and 1.0125 × 10 5 Pa obtained from Eq. (6) based on Redlich-Kister equation Marsh and Burfitt (1975), 0.001 x 0.08. e From the representative data sets (Table A.1).…”