Synthesis of EDTA‐monoalkyl ester chelates and evaluation of the surface active properties

Abstract Some new chelating agents were synthesized from ethylenediamine‐tetraacetic acid dianhydride and long chain alcohols. The equivalent reactions between the chelating agents and several metal ions gave the corresponding chelates in good yields. Surface‐and interfacial tensions, dispersing power and emulsifying power of these chelates were determined. These chelates showed excellent surface activities, especially the dispersing and emulsifying powers.