Original scientific paper

Polarographic Investigations of Some Metal Monocarhoxylato Complexes. III. Monocarhoxylato Complexes of Cadmium and Copper

A . Medved ; Laboratory of I norganic Chemistry, Faculty of Technology, Univer sity of Zagreb, Zagreb, Croatia, Yugoslavia
I. Filipović ; Laboratory of I norganic Chemistry, Faculty of Technology, Univer sity of Zagreb, Zagreb, Croatia, Yugoslavia

Abstract

The stability constants of cadmium and copper monocarboxylato
complexes have been determined by the polarog raphic
method in water solutions of a constant ionic strength 2 and a
constant monocarboxylic acid concentration of 2 M. The examinations
were carried out in the monocarboxylate concentration
range up to 2 M. The following values of cumulative stability
constants were obtained:
Cadmium : formato complexes ~ 1 = 20 ± 2, ; Be = 50 ± 5,
p3 = 40 ± 8, p4 = 36 ± 8; acetato complexes P1 = 40±5, B2 = 110±10,
p3 = 110 ± 15, p4 = 215 ± 20; propionato complexes P1 = 30 ± 2,
B2 = 80 ± 20, Ps = 400 ± 50, p4 = 290 ± 30; butyrato complexes
P1 = 17 ±,2, B2 = 160 ± 20 , Bs = 400 ± 50, B4 = 480 ± 60.
Copper: formato complexes p1 = 45 ± 5, Bo.= 200 ± 30, ~ 3 =
= 200 ± 40 , B4 = 270 ± 40; acetato complexes Bi = 100 ± iO ,
B2 = 500 + 50, B3 = 1000 + 100 , P4 = 1250 + 200; propionato complexes
Bi= l.10 ± 10, B2 = 450 ± 50, Ba = 1100 ± 200 , B4 = 1100 ± 200,
B; = 950 ± 200; butyrato complexes B1 = 80 ± 10, P2 = 600 ± 100 ,
Ba = 2000 ± 300, B4 = 1700 ± 300, Ps = 2000 ± 300.

Keywords

Hrčak ID:

208360

URI

https://hrcak.srce.hr/208360

Publication date:

22.4.1963.

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