Liquid-Liquid Extraction of Transition Metal Cations by Glyoximes and Their Macrocyclic Glyoxime Ether Derivatives

Table 1

Metal picrates and medium pH used in extraction.

Metals	≅pH	Ni^+2	Co^+2	Cu^+2	Zn^+2	Cd^+2	Pb^+2	Hg^+2
pH	2,00	2,17	2,01	2,03	2,07	2,01	2,11	2,11
	3,00	3,00	2,99	3,01	2,99	2,94	3,01	3,06
	4,00	4,00	3,64	4,02	3,92	3,81	4,18	3,95
	5,00	4,77	4,72	4,80	4,95	4,74	4,80	4,96