Phthalic acid, bis(2-ethylhexyl) ester
Synonyms
1,2-Benzenedicarboxylic acid, 1,2-bis(2-ethylhexyl) ester;
1,2-Benzenedicarboxylic acid, bis(2-ethylhexyl) ester;
Bis(2-ethylhexyl) phthalate;
Di(2-ethylhexyl) phthalate;
Diethylhexyl phthalate;
DEHP;
Category
Non-ionic surfactant
> Ester
>> Fatty Alcohol Ester
>>> Monohydric Alcohol Diprotic Acid Ester
>>>> Fatty Alcohol Aromatic Acid Ester
Chemical Numbering System
CAS: 117-81-7
EINECS: 204-211-0
Molecular Formula & Molecular Weight
Molecular Formula: C24H38O4
Molecular Weight: 390.56
Structure
Properties
Appearance (1), liquid.
Solubility insoluble in water.
Stability stable. Under strong acid or strong alkali condition, easily hydrolyzed.
Risk Liquid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
guinea pig oral LD50 |
26000mg/kg[1] |
|
guinea pig skin LD50 |
10000mg/kg[1] |
|
mouse intraperitoneal LD50 |
14000mg/kg[1] |
|
mouse intravenous LD50 |
1060mg/kg[1] |
|
mouse oral LD50 |
1500mg/kg[1] |
|
mouse skin LDLo |
4000mg/kg[1] |
|
rabbit intraperitoneal LD |
> 31mL/kg[1] |
|
rabbit oral LD50 |
34000mg/kg[1] |
|
rabbit skin LD50 |
25000mg/kg[1] |
|
rat intraperitoneal LD50 |
30700mg/kg[1] |
|
rat intravenous LD50 |
250mg/kg[1] |
|
rat oral LD50 |
30000mg/kg[1] |
|
rat intratracheal LDLo |
30mg/kg[1] |
|
rat skin LDLo |
4000mg/kg[1] |
Reproductive effect[1].
Human Toxicity
Table 2 Human toxicity values
|
man oral TDLo |
143mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent lubricating, dispersing, emulsifying, solubilizing 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, Product standards
(1), Chinese standards
(1a), GB/T 11406 Di-(2-ethylhexyl)phthalate for industrial use
4, 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 plasticizer.
Use as dispersing agent, emulsion stabilizer.
Use as solvent.
Manufacturers
References
[1]: ChemIDplus. 117-81-7, Phthalic acid, bis(2-ethylhexyl) ester
Update: 20141031(1); 20200614(2);