Spectrophotometry of complex compounds of nicel (II) with 1,2-diaminoethan
Equilibria in binary systems conyaining nicel (II) salts, as well as 1,2-diaminoethan were studied by spectrophotometry with NaClO<sub>4 </sub>as supporting electrolyte (<i>I </i>= 0,1) at <i>T</i> = 20 ± 2°С. The authors determined moral and proton compositions of complexes and the pH ranges of their existence and calculated stability constants for these complexes. The share of accumulation of complexes depending on acidity of medium were found. The experimental data were processed by the instrumentality of mathematical models which enabled to evaluate the probable existence of a wide spectrum of complex particles in the solution and to allocate those of them the assessment of which was enough for the reproduction of the situation observed.