Solubilization of Benzo(a)pyrene in Aqueous Solutions of Ionic Surfactants

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Abstract
The water solubility of benzopyrene in the presence of ionic detergents is investigated. The power of n‐alkyl benzene sulfonates to dissolve benzopyrene in increased quantities grows with the elongation of their m‐alkyl chain (from C8 to C12) and decreases with temperature between 10 and 40°C. The properties of the detergents determine their solvent effect, the substance‐specific coefficient Kbind being decisive, as is demonstrated by the example of the cation‐active detergents cetyltrimethylammonium bromide, sodium n‐decyl benzene sulfonate and sodium lauryl sulfonate.