Separation of the Cu-group Solution I

The Cu-group is separated with n-butanol-1.5N HQ-acetonyl-acetone (100 20 + 0.5). The sequence of migration distances in this 

Standard samples 2 [jJ of 0.1 M solutions of Hg(N03)2 2H2O Cd(00CCH3)2-2H20 Bi0N03 Pb(N03)2 Cu(00CCH3)2 H20 as separate spots in a row. 

Detection The layer is spread with a 2% solution of KI, dried, exposed to NH3 vapour and placed in a chamber filled with HgS (Table 217). 

Cani6 and Petbovi6 [5] have employed layers of maize starch for separation of Pb , Ag and Their solvent was acetone-3 N HNO3 (50 + 50) and the sequence of migration distances was  

Acetone-conc. HCl-acetonylacetone (100 + 1 + 0.5) is used as solvent to separate this group. Separations are improved if a small bowl of water is placed in the chamber. The sequence of migration distances of the ions is  

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