2H-1-Benzopyran-2-one, 4-methyl-7-(phosphonooxy)-, disodium salt
Synonyms
2H-1-Benzopyran-2-one, 4-methyl-7-(phosphonooxy)-, sodium salt (1:2);
4-Methylumbelliferyl phosphate, disodium salt;
Disodium 7-hydroxy-4-methylcoumarinyl phosphate;
Category
Anionic Surfactant
> Phosphate
>> Cyclic Phosphate
>>> Aryl Phosphate
Chemical Numbering System
CAS: 22919-26-2
EINECS: 245-325-0
Molecular Formula & Molecular Weight
Molecular Formula: C10H7Na2O6P; C10H9O6P.2Na
Molecular Weight: 300.11
Structure
Properties
Appearance (1), solid.
Solubility soluble in water.
Stability stable.
Risk Solid form: irritation, irritation to skin, eye, respiratory system.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent emulsifying, dispersing abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
90.0 |
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 emulsifying agent, dispersing agent.
Manufacturers
Update: 20190318(1);