Papierionophoretische verfolgung der darstellung gemischter cyano-thiocyanatochromate(III)

Paper ionophoretic investigation of the composition of a mixture of cyano-thiocyanatochromates(III) When K 3 [Cr(SCN) 6 ] reacts with KCN in boiling acetonitrile a mixture of all complex ions [Cr(SCN) 6− x (CN) x ] 3− ( x = 0, 1, … 6) is formed. This reaction can be observed by high-voltage paper ionophoresis. The R B -values give a first evidence of the composition of the complex ions.