Studies on the Utilization of Metal Chelates. V.

Chelate surfactants were synthesized which had hydrophobic alkyl group and hydrophilic metal ion, the ion being bonded to the former in chelate configuration, and their properties were investigated.Some N-alkyl ethylenediamines (alkyl group : octyl, decyl, dodecyl) were used as the chelating agents and they were treated with salts of some transitional metals, and some pure chelates were obtained. There were some chelate surfactants having good surface activities, in those chelates. Above all, N-octylethylenediamine-Fe (NO3) 3 (2 : 1) chelate and some other chelate surfactants had good dispersing power for TiO2 in organic solvent.