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Product Description
Product: EDTA (Ethylene Diamine Tetraacetic Acid, EDTA Acid, Editic Acid)
Molecular Formula: C10H16N2O8
CAS NO.:60-00-4
Molecular Weight:M=292.2
Feature: EDTA is a white crystal powder,insoluble in common organic solvents,soluble in boiling water 160 times as much and in alkali solvents like sodium hydroxide. At 150°C, it shows the tendency to depart from carboxyl.
Melting point: 240°C(decomposition)
Dissolving degree in water: 0.5g/L(25°C)
Item | First Class |
Content of EDTA-2Na | 99% Min |
Chlorides | 0.01% Max |
Sulphates | 0.1% Max |
Iron | 0.001% Max |
Heavy metal (as Pb) | 0.001% Max |
PH value (50g/l, 25℃) | 4.0-5.0 |
Appearance | White powder |
Application:
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.