composition склад 3 cobalt (II) 2 properties 2 stability constant 2 structure 2 властивості 2 chromium diboride 1 citrate and polyligand complexes 1 cobalt 1 combinatorial optimization 1 composite 1 concentra-tion 1 dialogue system 1 dye sorption 1 equilibrium constant 1 fuzzy relation 1 heuristics 1 isoionic point 1 molybdate 1 nonlinear optimization 1 phi-function method 1 point of zero proton charge 1 polyligand complex 1 relations force 1 saponites 1 soft polygons 1 spectrophotometry 1 spectro­photometry 1 standard 1