Excess Molar Volumes and Viscosities for Binary Mixtures of 1‐Alkoxypropan‐2‐ols with 1‐Butanol, and 2‐Butanol at 298.15 K and Atmospheric Pressure

Abstract

Excess molar volumes E m V and kinematic viscosities ν have been measured as a function of composition for binary mixtures of propylene glycol monomethyl ether (1-methoxy-2-propanol), MeOCH 2 CH(OH)Me, propylene glycol monoethyl ether (1-ethoxy-2-propanol), EtOCH 2 CH(OH)Me, propylene glycol monopropyl ether (1-propoxy-2-propanol), PrOCH 2 CH(OH)Me, propylene glycol monobutyl ether (1-butoxy-2-propanol), BuOCH 2 CH(OH)Me, and propylene glycol tert-butyl ether (1-tert-butoxy-2-propanol), t-BuOCH 2 CH(OH)Me with 1-butanol, and 2-butanol, at 298.15 K and atmospheric pressure. The excess molar volumes are negative across the entire range of composition for all the systems with 1-butanol, and positive for the systems 2-butanol＋ 1-methoxy-2-propanol, and ＋1-propoxy-2-propanol, negative for the systems 2-butanol＋1-butoxy-2-propanol, and change sign for the systems 2-butanol＋1-ethoxy-2-propanol, and ＋1-tert-butoxy-2-propanol. From the experimental data, the deviation in dynamic viscosity η from Σx i η i has been calculated. Both excess molar volumes and viscosity deviations have been correlated using a Redlich-Kister type polynomial equation by the method of least-squares for the estimation of the binary coefficients and the standard errors.

Macroscopic and Microscopic Study of 1-Ethyl-3-methyl-imidazolium Acetate–Water Mixtures

“…From the density data shown in Figure we calculated the excess molar volume V excess , defined by ρ = false( x 1 M 1 + x 2 M 2 false) false( x 1 V 1 + x 2 V 2 + V excess false) where ρ is the mixture experimental density, M i is the molar mass of i , and V i is the volume of 1 mol of substance i, which we calculated from the known densities of the pure components at 27 °C. The excess molar volume is shown in Figure .…”

Thermodynamic and Spectral Studies of Molecular Interactions in Binary Liquid Mixtures of 1-Butoxy-2-propanol with 1-Alcohols

“…(a) Excess molar volume against mole fractions x 1 1-butoxy-2-propanol + x 2 1-hexanol (■); x 2 1-octanol (●); x 2 1-decanol (▲); 298.15 K. The smoothing of the curves have been drawn from eq . (b) Excess molar volume against mole fractions x 1 1-butoxy-2-propanol + x 2 1-methanol (■) Pal et al; x 2 1-ethanol (●) Ku et al; x 2 1-propanol (▲) Pal et al; x 2 1-butanol (▼) Pal et al; x 2 1-hexanol (⧫) Dubey et al; x 2 1-octanol (◀) Dubey et al; x 2 1-decanol (▶) Dubey et al; at 298.15 K. The smoothing of the curves has been drawn from eq .…”

“…As far we know there is no experimental data of densities and speeds of sound on a binary mixture of 1-butoxy-2-propanol with higher alcohols (1-hexanol, 1-octanol, and 1-decanol) that have been reported in the literature. Recently, several authors − have studied the thermodynamic studies of the binary mixture of 1-butoxy-2-propanol with lower alcohols (ethanol, 1-butanol and 2-butanol). Therefore, it offers us a good opportunity to study the mixing behavior of 1-butoxy-2-propanol with higher alcohols.…”

Acoustic, volumetric, transport and spectral studies of binary mixtures of 1-tert-butoxy-2-propanol with alcohols at different temperatures

“…This may be due to the proportion of hydroxyl groups available for intermolecular hydrogen bonds in branched alcohols are different than normal alcohols in binary mixtures. Pal and Gaba[9,10] in their study found that the magnitude of excess molar volume of the binary mixtures of 1-tert-butoxy-2-propanol with 1-butanol is almost similar but for 2-butanol it shows a different behavior. This may be due to the different experimental techniques having been adopted for the measurement ofV m E .…”

“…The binary mixtures of (alkoxyalkanols + alcohols) have been studied extensively and systematically in recent years. Recently, Pal and Gaba [8][9][10] have studied volumetric, acoustic and transport properties of the binary mixtures of 1-tertbutoxy-2-propanol, + 1-propanol, + 1-butanol and + 2-butanol at 298.15 K.…”