Tetrabutylphosphonium bromide
Synonyms
Tetra-n-butylphosphonium bromide;
Phosphonium, tetrabutyl-, bromide;
Phosphonium, tetrabutyl-, bromide (1:1);
Category
Cationic surfactant
> Quaternary Phosphonium Salt
Chemical Numbering System
CAS: 3115-68-2
EINECS: 221-487-8
Molecular Formula & Molecular Weight
Molecular Formula: C16H36BrP; C16H36P.Br
Molecular Weight: 339.33
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: 
Animal Toxicity
Table 1 Animal toxicity values
|
mouse intravenous LD50 |
56mg/kg[1] |
|
rabbit skin LD50 |
197mg/kg[1] |
|
rat inhalation LC50 |
> 3mg/m3/1H[1] |
|
rat oral LD50 |
420mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent antistatic, wetting, permeating, antibacterial, 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.
Use as antibacterial agent, preservative.
Manufacturers
References
[1]: ChemIDplus. 3115-68-2, Tetrabutylphosphonium bromide
Update: 20140403(1); 20190401(2);