Effect of temperature on the partial molar volumes and the partial molar compressibilities of amino alcohols in aqueous solution

Densities, Viscosities of Pure 1-(2-Hydroxyethyl) Pyrrolidine, 3-Amino-1-Propanol, Water, and Their Mixtures at 293.15 to 363.15 K and Atmospheric Pressure

“…The representations of the RK model for the density data for the binary systems are presented in the Supporting Information (see Figures S6−S8). The reported densities data at low concentrations 13 seem to fit better to this work than the reported data from the literature 12 (see Figures S5 and S7). The results in the case of the ternary 1-(2HE)-PRLD(1)/3A1P(2)/H 2 O(3) system are shown in Figure 4, while Figure S9 in the Supporting Information shows the parity •/•-•, x 1 = 1.0000; blue 8.…”

“…This could be the reason why the mixture of 1-(2HE)­PRLD(1)/H 2 O (3) shows more volume contraction than in the 3A1P(2)/H 2 O­(3) system (Figure a,b). A comparison with literature data , for 3A1P(2)/H 2 O­(3) is shown in Figures S5 in the Supporting Information In aqueous solutions, molecular structures of 1-(2HE)­PRLD and 3A1P can also contribute to the negative value as a consequence of their structural characteristic for favorable geometrical fitting. The V E increases with temperature, and it can be interpreted as a sign that the interactional effects are dominant.…”