EDTA, ethylenediamine tetraacetic acid, commonly known as edetic acid, is a common chelating agent for metal ions. It can chelate with heavy metal ions to generate soluble chelated salts. EDTA and its disodium and tetrasodium salts are widely used. They can be found in food, washing products, cosmetics and even food.
Main uses of EDTA:
EDTA has a wide range of uses, which can be used as bleaching fixative, dyeing assistant, fiber treatment assistant, cosmetic additive, blood anticoagulant, detergent, stabilizer and polymerization initiator of synthetic rubber.
EDTA is a representative substance of chelating agent. It can form stable water-soluble complexes with alkali metals, rare earth elements and transition metals. In addition to sodium salts, there are ammonium salts and various salts such as iron, magnesium, calcium, copper, manganese, zinc, cobalt and aluminum.
Main uses: EDTA is mainly used as complexing agent, widely used in water treatment agent, washing additive, lighting chemicals, paper chemicals, oilfield chemicals, boiler cleaning agents and analytical reagents.
1. Polymer chemical industry: used as activator of styrene-butadiene latex polymerization and polymerization terminator of acrylic fiber production equipment;
2. Daily chemical industry: used as additives for various detergents, skin care products and perming hair care agents;
3. Paper industry: used as a treating agent for fiber cooking to improve the whiteness of paper and reduce the scaling in the steamer;
4. Pharmaceutical industry: Ethimine can be obtained by cyclization with formamide, which is a drug mainly used to treat psoriasis, and also used as a stabilizer for some vaccines and a blood anticoagulant;
5.Textile printing and dyeing industry: improve the dyeing rate of dyes and the hue and whiteness of printed and dyed textiles;
6. In the food industry: it can be used as a chelating agent in the food industry such as canned food processing to drive away the interference of metal ions.
7. In molecular biology experiments: it is a divalent metal chelating agent to inhibit nuclease; Reduce the stability of cell membrane.
In addition, EDTA can also be used to rapidly excrete harmful radioactive metals from the human body to detoxify.
