Separation of Xylenol Orange, Semi-Xylenol Orange and o-Cresol Red.
Several aqueous organic solvent systems have been investigated for the extractive separation of Xylenol Orange (XO), Semi-Xylenol Orange (SXO) and o-Cresol Red (CR). Four methods of determination of the extracted species were used. The best separation of CR and SXO was obtained with aqueous 1-butanol and of SXO and XO with the 0.5M sulphuric-1-butanol system.
Kiciak
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Department of Physical Chemistry, Technical University, Poznań, Poland.