Liquid-liquid extraction of metal ions by the 6-membered N-containing macrocycle hexacyclen.
The nitrogen-containing analogue of 18-crown-6, 1,4,7,10,13,16-hexa-azaoctadecane (hexacyclen)] was studied as a reagent for complexation and extraction of some metal ions. It was found that with this reagent and methyl isobutyl ketone, metal ions such as silver(I), mercury(II), copper(II), platinum(II) and palladium(II) can be quantitatively extracted and separated from iron(III) and some other metal ions.
Arpadjan
S
S
Department of Chemistry, University of Sofia, 1126 Sofia, Bulgaria.
Mitewa
M
M
Bontchev
P R
PR