Studies on Salting-out Constants and Activity Coefficients of Polycyclic Aromatic Hydrocarbons in Aqueous Salt Solutions

Abstract

Abstract: The solubilities of polycyclic aromatic hydrocarbons in water as well as in the aqueous NaCl salt solution were determined at 25℃ by spectrophotometer. The activity coefficient and salting-out constants have also been calculated.The salt concentrations (C_s) used are in the range of 0～0. 8 mol . L^-1 when lgf values were ploted vs. C_s for each compound, the obtained results are all straight lines. On comparison of slopes of these lines, the salting-out order is 4-methyl biphenyl>biphenyl>Naphthalene>ether>a-methyl naphthalene.

Key words: Salting-OHt constants, Activity coefficients, Polycyclic aromatic hydrocarbon

TrendMD:

Wang Liansheng, Xu Liangji, Li Xiaojuan . Studies on Salting-out Constants and Activity Coefficients of Polycyclic Aromatic Hydrocarbons in Aqueous Salt Solutions[J]. Chem. J. Chinese Universities, 1990, 11(7): 777.

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Studies on Salting-out Constants and Activity Coefficients of Polycyclic Aromatic Hydrocarbons in Aqueous Salt Solutions

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