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What is the chemical name of EDTA?

Ethylenediaminetetraacetic acid (EDTA) is an aminopolycarboxylic acid with the formula [CH 2 N(CH 2 CO 2 H) 2] 2. This white, water-soluble solid is widely used to bind to iron and calcium ions. It binds these ions as a hexadentate ("six-toothed") chelating agent.

What is the function of EDTA in iron oxide?

This white, water-soluble solid is widely used to bind to iron and calcium ions. It binds these ions as a hexadentate ("six-toothed") chelating agent. EDTA is produced as several salts, notably disodium EDTA, sodium calcium edetate, and tetrasodium EDTA. In industry, EDTA is mainly used to sequester metal ions in aqueous solution.

What is calcium disodium EDTA?

Calcium disodium EDTA is an odorless crystalline powder with a slightly salty flavor ( 1 ). It’s a popular food additive, used as a preservative and flavoring agent. Calcium disodium EDTA works as a chelating agent.

What is the role of EDTA in the dissolution of scale?

The reduction of water hardness in laundry applications and the dissolution of scale in boilers both rely on EDTA and related complexants to bind Ca 2+, Mg 2+, as well as other metal ions. Once bound to EDTA, these metal centers tend not to form precipitates or to interfere with the action of the soaps and detergents.


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