ETHYLENEDIAMINE-N,N'-DISUCCINIC ACID IRON SALT, METHOD FOR PRODUCING THE SAME, SILVER HALIDE PHOTOGRAPHIC PHOTOSENSITIVE MATERIAL TREATMENT AGENT USING THE SAME, AND METHOD FOR TREATING THE SILVER HALIDE PHOTOGRAPHIC PHOTOSENSITIVE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a method for producing an ethylenediamine-N,N-disuccinic acid(EDDS) iron salt by reaction of an EDDS salt with an iron salt while suppressing formation by-product insoluble compound(s) such as iron oxide(s), and to provide a photographic photosensitive material bleaching agent of good bleaching ability and high stability using the above iron salt.;SOLUTION: This method for producing an EDDS iron salt comprises reaction of an EDDS salt with an iron salt, being characterized by that the EDDS salt is a salt containing metal ion other than sodium ion (preferably ammonium ion). The other objective photographic treatment agent using the above EDDS iron salt either singly or as a mixture thereof is provided.;COPYRIGHT: (C)2001,JPO