Abstract
In this work, solid–liquid equilibria (SLE) data for ternary sodium 1-naphthalenesulfonate+sodium 2-naphthalenesulfonate+water system was measured at (283.15, 303.15 and 323.15)K respectively. The diagrams for solid liquid phase of the ternary system were well-established by the measured solubility data. The solid phases formed in the studied system were determined by the method of Schreinemaker’s wet residue. Moreover, the density of equilibrium liquid phase was gained in the process. At each temperature, there are two pure solids forming. They are sodium 1-naphthalenesulfonate and sodium 2-naphthalenesulfonate in the ternary system. The solubility data for the ternary system were calculated and regressed by NRTL model, giving acceptable results for the investigated systems.
Published Version
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