Tripotassium HEDTA
Synonyms
Glycine, N-(2-(bis(carboxymethyl)amino)ethyl)-N-(2-hydroxyethyl)-, tripotassium salt;
Tripotassium N-(2-hydroxyethyl)ethylenediaminetriacetate;
Category
Zwitterionic Surfactant
> Nitrilo Acid Type
>> Aliphatic Nitrilo Acid and its Salts
Chemical Numbering System
CAS: 62029-50-9
EINECS: 263-378-8
Molecular Formula & Molecular Weight
Molecular Formula: C10H15K3N2O7; C10H18N2O7.3K
Molecular Weight: 392.53
Structure
Properties
Appearance (1), solid.
Solubility soluble in water.
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: 
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, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
Major Uses
1, Typical applications
Use as chelating agent.
Manufacturers
Update: 20140924(1); 20190506(2);