Thermodynamic and acoustic properties of binary mixtures of alcohols and alkanes. II. Density and heat capacity of (ethanol+n-heptane) under elevated pressures

Study of molecular interactions in binary liquid mixtures of 1-octanol with n-hexane, n-octane, and n-decane using volumetric, viscometric, and acoustic properties

“…Binary mixtures of (alcohol + alkane) are convenient model systems for studying molecular interactions, association phenomena, solvation, etc. in the liquid phase [1]. Systematic studies of the thermodynamic properties of pure alkanols and n-alkanes as well as of binary (alkanol + n-alkane) mixtures are essential in designing and testing theoretical models of mixtures.…”

Second-Order Derivatives of the Gibbs Energy for Liquid Mixtures of Alcohol + Heptane at Pressures up to 100 MPa

“…of sound at elevated pressures were used [4][5][6][7], together with densities [5][6][7] and heat capacities [7][8][9] at atmospheric pressure. The uncertainties of the measured speeds of sound under atmospheric and high pressure were estimated to be better than 0.5 m · s −1 and 1 m · s −1 , respectively.…”

“…The details of the algorithm were discussed in a previous work [2]. The calculated densities and heat capacities were reported in previous papers [5][6][7].…”

Speed of sound, density, and heat capacity for (2-methyl-2-butanol+heptane) at pressures up to 100MPa and temperatures from (293 to 318)K. Experimental results and theoretical investigations

“…Until now, thermodynamic properties of (alkan-1-ol + heptane) such as (ethanol + heptane) [16,17], (propan-1-ol + heptane) [18,19], and (decan-1-ol + heptane) [15] have been investigated under high pressures by means of the acoustic method. As an extension of these studies, the present paper examines the influence of the chain structure and the position of the hydroxyl group in the alcohol molecule on the non-ideal behaviour of (2-methyl-2-butanol + heptane) and consequently, the effect of temperature and pressure on deviations from ideal solution behaviour.…”