Abstract
Experimental liquid-liquid equilibria of water+acetic acid+dimethyl phthalate and water+acetic acid+diethyl phthalate systems were investigated at 293.16±0.20 K. The reliability of experimental tie-line data was ascertained through an Othmer-Tobias plot. Distribution coefficients and separation factors were evaluated over the immiscibility region. It is concluded that the high-boiling solvents dimethyl phthalate and diethyl phthalate are suitable separating agents for dilute aqueous acetic acid solutions
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