Calcium Disodium EDTA Molecular Weight/Solubility
Chemical properties:
1) EDTA (Ethylene Diamine Tetraacetic Acid, EDTA Acid,EDTA H4, Editic Acid)
Property: white crystal powder, soluble in alcohol and other organic solvents.
CAS No : 60-00-4
EINECS No: 200-449-4
Molecular formula: C10H16N2O8
Molecular weight: 292.248
2) EDTA 2Na:
CAS No : 6381-92-6
Molecular formula: C10H14N2Na2O8
Molecular weight: 336.21
3) EDTA 4Na:
CAS No : 64-02-8;13235-36-4
EINECS No: 200-573-9
Molecular formula: C10H12N2Na4O8.4H2O
Molecular weight: 452.23
Application of EDTA:
As 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.