Sodium diethylenetriamine pentamethylene phosphonate
Synonyms
Phosphonic acid, (((phosphonomethyl)imino)bis(2,1-ethanediylnitrilobis(methylene)))tetrakis-, sodium salt (1:?);
Phosphonic acid, ((bis(2-(bis(phosphonomethyl)amino)ethyl)amino)methyl)-, sodium salt;
Category
Zwitterionic Surfactant
> Phosphonic Acid Type
Chemical Numbering System
CAS: 22042-96-2
EINECS: 244-751-4
Molecular Formula & Molecular Weight
Molecular Formula: C9H28N3O15P5.x-Na
Molecular Weight: N/A
Structure
Properties
Appearance (1), solid; (2), liquid.
Solubility soluble in water.
Stability stable.
Risk Solid form: corrosion; irritation, irritation to skin, eye, respiratory system.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
duck oral LD50 |
> 2510mg/kg[1] |
|
quail oral LD50 |
> 2510mg/kg[1] |
|
rabbit skin LD50 |
> 5000mg/kg[1] |
|
rat oral LD50 |
> 5000mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent cleansing, anticorrosive, chelating 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.
(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, Water treatment
Use as corrosion inhibitor, antisludging agent.
3, Personal care products
Chelating agent in personal care products.
Manufacturers
References
[1]: ChemIDplus. 22042-96-2, Diethylenetriaminepenta(methylenephosphonic acid), sodium salt
Update: 20140804(1); 20190701(2);