Speeds of Sound, Densities, Isobaric Thermal Expansion, Compressibilities, and Internal Pressures of Heptan-1-ol, Octan-1-ol, Nonan-1-ol, and Decan-1-ol at Temperatures from (293 to 318) K and Pressures up to 100 MPa

Abstract

The speeds of sound in heptan-1-ol, octan-1-ol, and nonan-1-ol at pressures up to 101 MPa and in decan-1-ol at pressures up to 76 MPa have been measured within the temperature range of (293 to 318) K. The densities have been measured in the same temperature range under atmospheric pressure. The densities, isobaric heat capacities, isentropic and isothermal compressibilities, isobaric thermal expansions, and internal pressures as functions of temperature and pressure have been calculated using the experimental results and the literature isobaric heat capacities for the atmospheric pressure. A modified method, based on the suggestion of Davis and Gordon (J. Chem. Phys. 1967, 46, 2650−2660), has been applied. The effect of pressure and temperature on the isothermal compressibility, isobaric thermal expansion, isobaric heat capacity, and internal pressure is discussed.

Densities, Viscosities, Speeds of Sound, and Refractive Indices of Binary Mixtures of 1-Decanol with Isomeric Chlorotoluenes

“…Prior to experimental measurements, all liquids were used after double distillation and partially degassed with a vacuum pump under an inert atmosphere. The purity of these solvents was ascertained by comparing the measured density, speed of sound, viscosity, and refractive index of the pure components with the available literature [5][6][7][8][9][10][11][12] as shown in Table 1. Table 1 Densities, ρ, speeds of sound, u, viscosities, η, and refractive indexes, n D of the pure liquid components at different temperatures …”

Densities, Excess Molar Volumes, Ultrasonic Speeds, and Isentropic Compressibilities of Hexan-1-ol with 1,2-Dichloroethane, 1,2-Dibromoethane, and 1,1,2,2-Tetrachloroethene at (293.15 and 298.15) K

“…The variations in the volumetric and acoustic properties of binary mixtures of alkanols containing haloalkanes, acetonitrile, ethylacetate, and ethenyl ethanoate, with the molecular size, shape, chain-length, and degree of molecular association of normal alkanols and branched alkanols have been reported earlier [6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Alkanols are polar and self-associated liquids, and the dipolar association of alkanols decreases when they are mixed with polar compounds containing halogen atoms, due to some sort of specific intermolecular interactions between the hydroxyl oxygen of alkanols and the haloalkanes [16][17][18][19][20][21][22][23].…”

Electron Releasing Effect on the Thermodynamic and Transport Properties of Liquid Mixtures at Various Temperatures

“…It may arise due to experimental procedure because viscosity '' was well correlated with our experimental values.The AAD values for 'u' were found to be less than 0.28% (Jerie et al [27])to our experimental values may be experimental procedure or chemical purity. The 1-heptanol and 1-octanol speed of sound 'u' values varies with 0.4% and 0.35% (Average Absolute Deviation) with Dzida et al [32] at 303.15K. The deviations may be arising due to experimental procedure.…”

“…Experimental datagraphically compared [22][23][24][25][26][27][28][29][30][31][32][33] and in the givensupplementarymaterial Figs. from 1S to 9S and also third-order polynomial was used to fit viscosity and speed of sound as a function of concentration, for pure substances and its binary mixture of N,N-diethyl aniline with 1-heptanol, + 1-octanol, were listed in Tables and Figs. …”