This paper presents experimental
density (ρ), viscosity (η),
and speed of sound (u) measurements for three binary
mixtures of 2,6-dimethylcyclohexanone (2,6-DMC) with aliphatic
primary alcohols, i.e., 2-propyn-1-ol, 2-propen-1-ol, propan-1-ol,
over the entire composition range from 303.15 to 313.15 K and at 0.1
MPa. The excess parameters (V
E
, k
s
E
), deviation in
viscosity (Δη), excess partial molar
volumes (V̅
m,1
°E and V̅
m,2
°E), and
excess partial molar isentropic compressibilities (K̅
s, m,1
°E and K̅
s, m,2
°E) of the components at infinite
dilution were calculated from the experimental thermophysical properties.
The variation of these properties suggests the hydrogen bond, dipole–dipole
interactions, and charge-transfer complex formation between 2,6-DMC
and primary alcohols. Furthermore, the V
E
results have been analyzed in terms of Prigogine-Flory-Patterson
(PFP) theory. Moreover, the FT-IR results reveal the hydrogen bonding
interactions (−C=O---H-O−) between 2,6-dimethylcyclohexanone
and self-associated primary alcohols.