Abstract: A method for removing at least one pollutant from an aqueous environment comprises adding an acid to the aqueous environment to provide an acidic aqueous environment, adding a chelator solution directly to the acidic aqueous environment to achieve a precipitate of the at least one pollutant, and isolating the precipitate from the aqueous environment. The at least one pollutant may include any one or more of a heavy metal cation, an organic dye, and an active pharmaceutical ingredient.

Abstract: The anti-inflammatory zinc(II) complex, viz., crystalline bis(chloro)-(N,N?-(2,2-dimethylpropane-1,3-diyl)bis(1-(2-chlorophenyl)-methanimine))-zinc zinc(II) complex, may be used as an anti-inflammatory. The compound has the formula: This complex is prepared by reaction of a Schiff base, namely, N,N?-bis(2-chlorobenzylidene)-2,2-dimethylpropane-1,3-diamine, with zinc chloride in alcohol to form a precipitate, which is removed by filtration, followed by slow evaporation of the filtrate to obtain the crystalline product. In vivo testing showed that the above zinc(II) complex exhibited good anti-inflammatory effect. It is thought that the present zinc-based anti-inflammatory avoids the gastrointestinal side effects of conventional NSAIDs due to the coordinated zinc complex.