The mutual diffusion coefficients of n-butanol + n-heptane and n-pentanol + n-heptane were measured over the mass fraction of n-butanol or n-pentanol from 0.05 to 0.95 at intervals of 0.10 and the temperatures 288.15 K, 298.15 K, 308.15 K and 318.15 K at 0.101 MPa. The measurements were carried out using a digital holographic interferometry system. The expanded relative uncertainty of the mutual diffusion coefficients was estimated to be less than 2.4%. The influences of temperature and composition on the mutual diffusion coefficients were investigated. Moreover, equations for the mutual diffusion coefficients of the two binary mixtures were fitted to the data as functions of mass fraction and temperature. The correlations represent the data with the absolute average of relative deviations (AARDs) of 1.1% for n-butanol + n-heptane and 0.77% for n-pentanol + n-heptane, respectively.
Compounds
#
Formula
Name
1
C4H10O
butan-1-ol
2
C5H12O
pentan-1-ol
3
C7H16
heptane
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.