Excess volumes of binary 1-alkanol/nonane mixtures at temperatures between 293.15 and 333.15 K

Abstract

Excess volumes VE of 1-propanol, 1-hexanol, 1-octanol, 1-decanol, and 1-dodecanol + nonane binary mixtures have been measured at 293.15, 298.15, and 333.15 K with a vibrating tube densitometer. The temperature dependence of VE Is discussed qualitatively In terms of a chemical and a physical contribution to VE. The data can be used to test a quantitative theoretical approach published recently which allows one to describe not only Ge, He, and CE but also VE for alkanol/alkane mixtures.

P–ρ–T Data and Modeling for Propan-1-ol + n-Octane or n-Nonane or n-Decane from 313.15 K to 363.15 K and 1 MPa to 20 MPa

“…(a) Density data (ρ) for the propan-1-ol (1) + n -octane (2) system at 313.15 K [(●) this work and (○) Estrada-Baltazar et al] and the propan-1-ol (1) + n -nonane (2) system at 333.15 K and 0.1 MPa [(■) this work and (□) Wagner and Heintz] at various compositions. Lines are a visual guide only.…”

“…The effect of temperature on the excess volume is widely accepted and has been studied in great detail. Some data for alkane- and alcohol-containing systems are available in the literature. − Additionally, numerous pure-component n -octane, n -nonane, n -decane, and propan-1-ol densities have been reported as functions of temperature and pressure in the literature. − However, the pressure effect on the excess volume is not well studied for the binary propanol–alkane systems considered here.…”

Thermodynamics of (1-alkanol+linear monoether) systems

“…In (1-alkanol + n-alkane), this quantity is positive for systems with positive V E values, and is negative for systems or concentration ranges, where V E is negative [76][77][78][79][80]. This behaviour has been attributed to a variation in the balance of the association and structural effects with temperature, depending on the size and shape of the component molecules [80].…”

Viscosities of Binary Liquid Mixtures of Butanol + Pentane, + Hexane, + Heptane, and + Octane at T = 298.15 K

“…With this viewpoint, Wagner and Heintz (1986) and Heintz et al (1986) measured excess molar volumes, V m E , of binary mixtures of nonane and hexane with five different 1-alkanols at various temperatures. Systematic studies of their properties provide important information concerning the deeper understanding of the molecular liquid structure and the intermolecular interactions predominated by the selfassociation of the alkanol molecules due to hydrogen bonding.…”