Process for the preparation of chelated mixtures of ethylenediamine-N,N%-di(p-hydroxyphenylacetic) acid

摘要

Process for the preparation of chelated mixtures of ethylenediamine-N,N%-di(p-hydroxyphenylacetic) acid (p-EDDHA). According to the invention, this acid p-EDDHA is reacted with an iron salt in the presence of alkaline reactants. The invention applies especially to treating iron deficiency in crop or ornamental plants.