Densities of pure hexamethyleneimine and of its aqueous solutions have been measured at atmospheric pressure, using an Anton Paar digital vibrating tube densimeter, from 273.16 to 363.15K and from 283.15 to 353.15 K, respectively. Acceptable representations of experimental data are found using a general correlation from Dauber et al. for pure hexamethyleneimine and using a general correlation from Bettin and Spieweck for pure water; thus indicating consistency of newly measured data. In this paper, we showthe Redlich Kister equation leads to incorrect data treatment particularly at lowconcentrations for systems presenting hydrophobic interactions. Thermal expansion coefficients (^2*) for the pure hexamethyleneimine (HMI) and excess thermal expansion coefficient (^2E) of the binary mixture: HMI+water at 283.15 and 298.15K over the whole mole fraction range of water are presented and discussed in terms of the structural changes in the mixtures.
Compounds
#
Formula
Name
1
C6H13N
azacycloheptane
2
H2O
water
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.