ALEXANDER APELBAT
From total vapour pressures determined between 25 and 45°C, the activity coefficients and excess thermodynamic functions were evaluated in the dibutyl phosphate (HDBP)—benzene and HDBP—chloroform systems. The first system is adequately described by the regular associated mixture model of the type A + B + A2, with the equilibrium constant of the dimerization reaction K = 0.301, on the molar fraction scale, and the interaction parameter α = 5 kJ/mole at 25°C. The HDBP—CHCl3 system is characterized by negative deviations from ideality and as a first approximation, the obtained results can be interpreted in terms of 1:1 hydrogen bonded complex, with K = 0.724 at 25°C and K = 0.515 at 45°C and with the standard heat of formation ΔH° = —13.4 kJ/mole.
@article{b88a7010-5028-4c4a-b938-555631ba9455,
title={Thermodynamic studies of solvent extract},
author={ALEXANDER APELBAT},
year={2026},
language={en}
}TY - JOUR TI - Thermodynamic studies of solvent extract AU - ALEXANDER APELBAT PY - 2026 LA - en ER -
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