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Ethylenediaminetetraacetic acid (EDTA) and disodium ethylenediaminetetraacetic acid (EDTA-Na)

 Last Update: 2022-01-02
 Source: Internet
 Author: User

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caustic sodium hydroxide

make salt water

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Ethylenediaminetetraacetic acid (EDTA) and disodium ethylenediaminetetraacetic acid (EDTA-Na)

[Structural formula]

[Physical and chemical properties] The common name of ethylenediaminetetraacetic acid is ethanoic acid, also known as water softener.

EDTA is a tetrabasic acid and can be expressed by H4Y.

As an important compounding agent, EDTA is used in industrial cleaning

In actual production, in order to improve the solubility of ethylenediaminetetraacetic acid, disodium ethylenediaminetetraacetic acid is often used

[Preparation]

(1) The sodium salt of EDTA is generated inversely from chloroacetic acid and ethylenediamine under the action of sodium hydroxide .

(2) EDTA sodium salt is obtained by one-step reaction of ethylenediamine with formaldehyde and sodium cyanide.

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