Disodium EDTA can react with calcium ions in hard water to form soluble salts. It can also eliminate the destructive effect of copper and iron ions on the preservation of Caiyi developer and prevent the formation of fog. It is an important complexing agent and water softener. Used in photographic developer, color developer, front bath, stabilization, fixing and other solutions. The container shall be sealed and stored in a cool, dry and ventilated place.
Disodium EDTA is used as bleaching fixing solution for color sensitive material processing, as well as water purification agent, pH regulator, chelating agent, multivalent chelating agent and coagulant inhibitor. It is also used in textile printing and dyeing, detergent, metal coating and metallurgical industry.