Benzyltriphenylphosphonium bromide
Synonyms
Triphenylbenzylphosphonium bromide;
Phosphonium, triphenyl(phenylmethyl)-, bromide;
Phosphonium, triphenyl(phenylmethyl)-, bromide (1:1);
Category
Cationic surfactant
> Quaternary Phosphonium Salt
Chemical Numbering System
CAS: 1449-46-3
EINECS: 215-908-4
Molecular Formula & Molecular Weight
Molecular Formula: C25H22BrP; C25H22P.Br
Molecular Weight: 433.32
Structure
Properties
Appearance (1), white to off-white crystal.
Solubility soluble in water; soluble in ethanol.
Hygroscopicity hygroscopic.
Stability stable.
Risk Solid form: irritation, strong 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 antistatic, dispersing, emulsifying 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 phase transfer catalyst.
Use as flocculant.
Use as deodorant.
Manufacturers
Update: 20140403(1); 20190401(2);