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EDTA Series
Jul 31, 2017

A. EDTA is an important complexing agent. EDTA is widely used
1. Polymer Chemical Industry: polymerization reaction termination agent for butadiene-styrene latex polymerization activator and acrylic fiber production device;
2, Daily Chemical industry: used as a variety of detergents, skin care products, perm hair conditioner additives;
3, papermaking Industry: As the treatment of fiber cooking agent, improve the whiteness of paper, reduce the scale of the steamer;
4, the pharmaceutical industry: with Formamide can be made of ethylene imide, is a mainly used for the treatment of psoriasis drugs, but also as a certain vaccine stabilizers and blood anticoagulants;
5, textile Printing and dyeing industry: improve dye color rate and printing and dyeing textiles, hue and whiteness;
6, in the food industry: can be processed in the food industry, such as chelating agent, dispel metal ions interference.
7, in the Molecular Biology experiment: is two valence metal chelating agent, suppresses the nucleic acid enzyme, reduces the cell membrane stability.
In addition, EDTA can also be used to detoxify harmful radioactive metals from the human body.

Two. Advantages of EDTA:
EDTA chelate capacity does not have a strong phosphoric acid series, but as a phosphorus-free chelating agent, in the cost of consideration, EDTA is currently a chelating agent in the leader. EDTA is a multiple-tooth ligand, and metal ions together with a number of five-yuan ring chelate, and the formation of the chelate of the stable constants are very large. Because of its six ligand atoms, the coordination of most metal ions can be met, and in general, the ratios of these chelate compounds are 1:1.

Three. EDTA Disadvantage:
EDTA can form soluble chelate with more than 50 kinds of metal ions, which is a kind of high efficient chelating agent, but with the application of EDTA, the chelating logistics containing EDTA into the rivers and lakes has certain influence on the environmental pollution, and the only country that is currently banning the use of EDTA is Sweden.
In general, EDTA as the industrial industry of monosodium glutamate, in the world's industrial development plays a pivotal position. It is believed that there will be better and more advantageous chelating agents in the future to replace EDTA, but at present, EDTA is irreplaceable.