Trimethyl phosphate
Synonyms
Phosphoric acid, trimethyl ester;
Category
Non-ionic surfactant
> Phosphate
>> Fatty Alcohol Phosphate
Chemical Numbering System
CAS: 512-56-1
EINECS: 208-144-8
Molecular Formula & Molecular Weight
Molecular Formula: C3H9O4P
Molecular Weight: 140.07
Structure
Properties
Appearance (1), liquid.
Solubility soluble in water.
Stability stable.
Risk Liquid form: irritation, irritation to skin, eye.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
guinea pig oral LD50 |
1676mg/kg[1] |
|
mouse intraperitoneal LD50 |
2250mg/kg[1] |
|
mouse oral LD50 |
1470mg/kg[1] |
|
quail oral LD50 |
750mg/kg[1] |
|
rabbit oral LD50 |
1275mg/kg[1] |
|
rabbit skin LD50 |
2.83mL/kg[1] |
|
rat oral LD50 |
840mg/kg[1] |
|
rat intraperitoneal LDLo |
800mg/kg[1] |
|
rat intravenous LDLo |
2400mg/kg[1] |
Reproductive effect[1].
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent dispersing, cleansing, lubricating, solubilizing, emulsifying abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Liquid |
|
|
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 solvent.
Use as cleansing agent.
Use as plasticizer.
Use as flame retardant.
2, Industrial cleaning
Cleansing agent, paint stripper in industrial cleaning.
Manufacturers
References
[1]: ChemIDplus. 512-56-1, Trimethyl phosphate
Update: 20190728(1);