Speeds of sound and isentropic compressibilities of binary mixtures of 1-heptanol + 1,2-dichloroethane, +1,1,1-trichloroethane, +1,1,2,2-tetrachloroethane, +trichloroethylene and +tetrachloroethylene at 303.15 K  – comparison with theories

Abstract

Densities ρ, and speeds of sound u, of the binary mixtures of 1-heptanol with 1,2-dichloroethane, 1,1,1-trichloroethane, 1,1,2,2-tetrachloroethane, trichloroethylene, and tetrachloroethylene have been measured over the complete composition range at 303.15 K. Isentropic compressibility κ_s, and Isentropic compressibility deviations Δκ_s were calculated, and were correlated by a Redlich–Kister type function to determine the fitting parameters and the SDs. The results are consistent with the self-association of 1-heptanol and the polar and nonpolar characters of used chloroethanes or chloroethylenes, which produce the dissociation of 1-heptanol. Speeds of sound and isentropic compressibilities have been compared with calculated values from Jacobson free length theory, Schaaff collision factor theory, Nomoto relation, Junjie relation and Van Deal ideal mixing relation.

Keywords:

• Speed of sound
• Isentropic compressibilities
• Chloroethylenes
• Chloroethanes
• 1-Heptanol

Acknowledgments

The authors thank the university authorities for providing the necessary facilities to carry out the work.