Elektrophoretische Untersuchung der Komplexbildung von FeY− (H4Y = Ethylendiamintetraessigsäure) mit Aminopolycarbonsäuren

Electrophoretic Investigation of the Complexation of FeY^? (H₄Y = Ethylene Diamine Tetraacetic Acid) with Aminopolycarboxylic Acids In the system FeY/APC (iminodiacetic acid, nitrilotriacetic acid ethylenediaminetetraacetic acid, respectively) ternary complexes could be detected in aqueous solution. By means of electrophoretic measurements the ratio of the components in the species is FeY:APC = 1:1 without any exception. The stability constants K₁ = [FeYL]/[FeY][L] of the complexes are discussed.