1. EDTA is an important complexing agent. EDTA has a wide range of uses. It can be used as a bleaching and fixing solution for the processing of color photosensitive materials, dyeing aids, fiber processing aids, cosmetic additives, blood anticoagulants, detergents, stabilizers, synthetic rubber polymerization initiators, and EDTA is a chelating agent. The representative substance of the mixture. It can form stable water-soluble complexes with alkali metals, rare earth elements and transition metals. In addition to sodium salts, there are also ammonium salts and various salts such as iron, magnesium, calcium, copper, manganese, zinc, cobalt, and aluminum. These salts have different uses. In addition, EDTA can also be used to detoxify harmful radioactive metals from the human body quickly. It is also a water treatment agent. EDTA is also an important indicator, but it is used to titrate metal nickel, copper, etc., when it is used, it must be used together with ammonia to act as an indicator.
2. EDTA is an excellent chelating agent for calcium and magnesium ions. It is used as a chelating agent for water used in emulsion polymerization to remove Ca2+, Mg2+, Fe2+, Fe3+ and other metal ions. It is also used as a complexing agent for anaerobic adhesives, that is, EDTA is used to treat methacrylic acid diester to remove transition metal ions, eliminate the effect of promoting peroxide decomposition, and has a very good effect on improving the stability of anaerobic adhesives. EDTA sodium salt chelating metal ions can improve the modification speed of acrylic acid. The storage stability of SGA, the dosage is -3×10-4~6.0×10-4. The dosage is 1.5%, and the storage stability at 50°C is more than 360h (stored at 50°C for 4 days, equivalent to 1 year storage at SGA20°C).
3. It is often used to soften boiler water quality. Prevent scaling.