EDTA application widely when it is used complexing agent, usually widely used in water treatment, detergent additives, lighting chemicals, paper chemicals, oil field chemicals, and also has application in the boiler cleaning agents and analytical reagents.
In the industry ,the EDTA application in cleaning up heavy metal ions and Ca2 + and Mg2 + ions. when the EDTA used in soap production ,it combine with hard water Ca2 + and Mg2 + ions to reduce the hardness. It also widely applications in Photography: the Fe (III) EDTA as the oxidant.
What is more ,when it combine with the heavy metal ,can also be applied to textile. In our daily life, there are various of EDTA applications. For example, in the food grade ,it can as a preservative to prevent the oxidation of heavy metals; in the cosmetic grade ,adding the EDTA to prevent cosmetics from going bad; in the oil production, adding EDTA to prevent mineral deposits ; on usual ,it also used in cleaning milk bottles; To nitrogen oxides, also apply to exhaust gas treatment.
One of the most significant EDTA applications is biomedicine. Firstly, treatment of mercury poisoning, using calcium disodium EDTA – (EDTA Na2-Ca) treatment of heavy metal poisoning . Application in mercury poisoning people, but also people who treat lead poisoning . The use of EDTA and heavy metal binding properties, generating Stable and soluble salt excreted in the urine. Secondly , laboratory medicine : As a specimen of blood and other liquids anticoagulants ( when used as a complete blood count blood samples ) .
Thirdly ,application in dentistry : root canal therapy is used to remove some of the organic or inorganic substances.
Fourthly, application in Biochemistry : EDTA used in molecular biology to prevent the effects of metal ions on the enzyme.
Fifth, application in Soda : Vitamin C and sodium benzoate in soft drinks containing benzene have the opportunity to produce carcinogenic substances that can EDTA to deal with.
Water Testing : Testing water hardness.
The last but not the least EDTA applications in Environment:
EDTA can not be broken down in sewage treatment , but under the control of the pH value, EDTA after prolonged reaction will be almost completely , and when it pulled out when you want other microorganisms to allow the completion of the process of combining EDTA . In water , too much or too little will affect the number of chelates algae and plankton can be increased or decreased . EDTA is toxic for bacteria in the feces of mammals will damage the cell membrane of biological.
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