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Chelating Agent
 
EDTA Acid
ʱ䣺2016-12-30 18:24:291504


[English Name]:  Ethylene diamine tetraacetic acid  (EDTA)


[Molecular Fomula]:  C10H16N2O8

[Molecular Weight]:   M=292.24

[CAS No]:           60-00-4

[Properties]:         white crystal powder melting point 240(decomposition) insoluble in cold water ,alcohol and general organic solvent, slightly soluble in hot water, but soluble in sodium hydroxide, sodium carbonate and ammonia solution.

[Quality Index]:       (Q/24SJK02-2009 Quality standard)

Purity%

99.5%

Chloride(Cl)%

0.01%

Sulfate(SO4)%

0.03%

Metal chelate(Pb)%

0.001%

Iron(Fe)%

0.001%

Dry and loss(103-107)%

0.2%

Chelate : mgCaCO3/g

339 min

NTA%  

0.1%

Appearance

White crystal powder


 

Application Method:

An agent for complexation, EDTA is mainly used for water treatment, as an additive to detergent, a chemical for photography, paper-making and oil-field. It is also used as detergent for boiler cleaning and reagent in chemical analysis. 
1. High molecular chemical industry: EDTA is used as polymetization activator for butyl bezene latex, and polyreaction terminator in acrylic fibre production.
2.Daily chemicals: EDTA is used as additive to detergent, skin cream and hair-conditioner.
3.Paper-making: EDTA is used for treating the steamed fibre. It will promote the whiteness of paper and reduce the incrustation in the steamer.
4.Pharmaceutical industry: Through cyclopolymerization with methyl amide, EDTA is made into ethyl amide, a remedy for psoriasis. It is also a stablizer for some vaccines and an antihaemoagglutinin.
5. Textile dyeing and printing: EDTA will promote colour ability of the dyestuff and brightness of the dyed fabric.


 
 
 
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