Monopotassium L-glutamate
Synonyms
L-Glutamic acid, monopotassium salt;
L-Glutamic acid, potassium salt (1:1);
Monopotassium glutamate;
Category
Zwitterionic Surfactant
> Amino Acid Type
>> Amino acid and its Salts
Chemical Numbering System
CAS: 19473-49-5
EINECS: 243-094-0
Molecular Formula & Molecular Weight
Molecular Formula: C5H8KNO4; C5H9N1O4.K
Molecular Weight: 185.22
Structure
Properties
Appearance (1), white 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 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
mouse intraperitoneal LD50 |
2400mg/kg[1] |
|
mouse oral LD50 |
4500mg/kg[1] |
Human Toxicity
Table 2 Human toxicity values
|
human oral TDLo |
57mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent antistatic, dispersing, cleansing 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
Ninhydrin method
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 dispersing agent.
Use as cleansing agent.
Manufacturers
References
[1]: ChemIDplus. 19473-49-5, Monopotassium glutamate
Update: 20190408(1);