EDTA
Synonyms
Acetic acid, (ethylenedinitrilo)tetra-;
Edetic acid;
Glycine, N,N'-1,2-ethanediylbis(N-(carboxymethyl)-;
Category
Zwitterionic Surfactant
> Nitrilo Acid Type
>> Aliphatic Nitrilo Acid and its Salts
Chemical Numbering System
CAS: 60-00-4
EINECS: 200-449-4
Molecular Formula & Molecular Weight
Molecular Formula: C10H16N2O8
Molecular Weight: 292.24
Structure
Properties
Appearance (1), solid.
Solubility slightly soluble in water.
Physical - chemical properties
|
Water solubility, g/L |
1.0 (25°C)[1] |
Stability stable.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2, nitrogen oxides and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
mouse intraperitoneal LD50 |
250mg/kg[2] |
|
mouse intravenous LD50 |
28.5mg/kg[2] |
|
mouse oral LD50 |
30mg/kg[2] |
|
rat intraperitoneal LD50 |
397mg/kg[2] |
Reproductive effect[2].
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent chelating, dispersing, antistatic abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Product standards
(1), Chinese standards
(1a), HG/T 3457 Chemical reagent -- Ethylenediamine tetraacetic acid
4, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as chelating agent.
2, Personal care products
Chelating agent in personal care products.
Manufacturers
References
[1]: HSDB. 60-00-4, Ethylenediamine Tetraacetic Acid
[2]: ChemIDplus. 60-00-4, Edetic acid
Update: 20140924(1); 20190506(2);