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- W2348418105 abstract "N, N-Di-sec-octylacotamide (DOAA) possesses notable properties in extraction of phenols. This paper describes a study on the mechanism of the extraction of phenol by a solution of DOAA in dodecane or kerosene.The isotherms of the extraction equilibrium have been given and the constants in the equation Y = aX~b thereby calculated (X and Y denote the concentration of phenol in aqueous and organic phase respectively). The distribution ratio of phenol is shown to be as high as 400 in the extraction by pure DOAA. With the aid of Clausius-Clapeyron equation the enthalpy of the extraction reaction has been determined as ΔH=-4.0 Kcal/mole. By means of the slope method and the method of continuous variations, the composition of the extracted species is deduced to be C_6H_5OH·DOAA. A marked carbonyl shift was observed in the infrared spectra of the loaded organic phases. It is a consequence of the coordination effect during the process of extraction. As indicated by the NMR spectrum the value of the chemical shift of the hydroxyl proton in phenol was increased significantly in the extracted complex resulting from the effect of the intermolecular hydrogen bonding. The structure of the extracted species may thus be deduced as C_6H_5O—(sec—C_8H_(17))_2." @default.
- W2348418105 created "2016-06-24" @default.
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- W2348418105 date "1980-01-01" @default.
- W2348418105 modified "2023-09-25" @default.
- W2348418105 title "THE MECHANISM OF THE EXTRACTION OF PHENOL BY N, N-DI-SEC-OCTYLACETAMIDE" @default.
- W2348418105 hasPublicationYear "1980" @default.
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