Croatica Chemica Acta, Vol. 43 No. 3, 1971.
Original scientific paper
Physical Properties of 2-Carbethoxy-5-hydroxy-1-(4-tolyl)- 4-pyridone - a New Extractant for Metals
M. Janka
; Institute »Ruder Boskovic« and Institute of Inorganic and Analytical Chemistry, University of Zagreb, Zagreb, Croatia, Yugoslavia
M. J. Herak
; Institute »Ruder Boskovic« and Institute of Inorganic and Analytical Chemistry, University of Zagreb, Zagreb, Croatia, Yugoslavia
Abstract
Physical properties of 2-carbethoxy-5-hydroxy-1-(4-tolyl)-4-
pyridone (HA) are described and discussed. Molecular weight
determination showed that this reagent is a monomer in chloroform
solution. The UV absorption spectra of HA dissolved in
water at various pH values were recorded. The ionization constaht
of HA was determined spectrophotometrically and by potentiometric
titration. The distribution of the reagent between chloroform
and 1 M aqueous perchlorate solution has been determined
spectrophotometrically.
Keywords
Hrčak ID:
197313
URI
Publication date:
15.11.1971.
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