Results of phase equilibria studies of 3-picoline—deuterium oxide mixtures of limited miscibility. Studies were focused on showing the violation of Cailletet-Mathias law of rectilinear diameter for the lower critical consolute temperature mixtures of limited miscibility and showing a simple and easy method for determining the critical concentration by testing relative volumes of coexisting phases. Results include investigation of the order parameter, the diameter of the binodal, and coordinates of the critical consolute point (critical temperature and critical concentration).
The dataset contains photographs of experimental setup and close ups of glass ampoules with tested mixtures and temperature evolutions of fractional meniscus heights for mixtures of different concentrations.
The names of the individual files correspond to the numbering of the figures in the paper: Kalabiński, J., Drozd-Rzoska, A. & Rzoska, S.J. New insight into 3-picoline—deuterium oxide (D2O) mixtures of limited miscibility with the lower critical consolute temperature. Eur. Phys. J. E 45, 73 (2022).
Files included in this collection:
Figure01 – Photograph of the experimental setup for determining phase equilibria via the semi-automatized photo-observation of menisci between coexisting liquid phases in mixtures of limited miscibility.
Figure02A – Photograph of ampules with 3-picoline—deuterium oxide mixtures near the critical temperature.
Figure02B – Photograph set of a single ampule with 3-picoline—deuterium oxide mixture in different temperatures (lowering from left to right) depicting critical opalescence onset and slight meniscus movement.
Figure03 – Temperature (ΔT) evolutions of fractional meniscus heights for coexisting phases in 3-picoline—deuterium oxide mixtures.
Figure04 –Coexistence curves in 3-picoline— deuterium oxide (with binodal curve diameter) and 3-picoline (water + deuterium oxide) mixtures. Historical reference experimental data is included.
Figure05 – Changes of the order parameter in 3-picoline—deuterium oxide mixture of limited miscibility.
Figure06 – Distortions-sensitive analysis order parameter in 3-picoline—deuterium oxide mixture of limited miscibility.
Figure07 – Binodal curve diameter of 3-picoline— deuterium oxide mixture.
Figure08 – Isothermal behavior of fractional meniscus height for different 3-picoline— deuterium oxide mixtures for a few select temperatures.
