Disodium ethylenediaminetetraacetate

Among the salts of ethylenediaminetetraacetic acid (EDTA), disodium EDTA is the most important. It is a crucial chelating agent used to complex metal ions and separate metals. It is also used in detergents, liquid soaps, shampoos, agricultural chemical sprays, color photosensitive material processing bleaching and fixing solutions, water purification agents, pH adjusters, anionic coagulants, etc. In the redox initiation system for styrene-butadiene rubber (SBR) polymerization, disodium EDTA, as a component of the surfactant, is mainly used to complex ferrous ions and control the polymerization rate. This product has low toxicity; the oral LD50 for rats is 2000 mg/kg. It is used as a chelating agent for metal ions.

Testing for calcium, magnesium, etc. Used in the pharmaceutical industry, color developing, rare metal smelting, and other fields.

Used as an aminocarboxyl complexing agent for the determination of calcium, magnesium, and other metals. Used as a metal masking agent and color developer. Also used in the pharmaceutical industry and the smelting of rare metals.

Also used as a cosmetic antioxidant enhancer, belonging to the metal ion chelating agent category, with the same function as EDTA, but with a wider range of applications. It can be used in cosmetic raw materials containing trace amounts of metal ions and in situations where metal containers are used during cosmetic production, storage, and transportation.