IRON ALKALI SALT OF S,S-ETHYLENEDIAMINE-N,N'-DISUCCINIC ACID AND PROCESS FOR PRODUCING THE SAME

摘要

An iron alkali salt of S,S-ethylenediamine-N,N'-disuccinic acid wherein the content of a lactam compound of general formula (1), wherein M represents an ammonium or alkali metal ion, and the content of an ethylenediaminemonosuccinic acid of general formula (2), wherein M represents an ammonium or alkali metal ion, are respectively 7 % by weight or less.