Dibutyl phthalate
Synonyms
1,2-Benzenedicarboxylic acid, 1,2-dibutyl ester;
1,2-Benzenedicarboxylic acid, dibutyl ester;
Phthalic acid, dibutyl ester;
Category
Non-ionic surfactant
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Chemical Numbering System
CAS: 84-74-2
EINECS: 201-557-4
Molecular Formula & Molecular Weight
Molecular Formula: C16H22O4
Molecular Weight: 278.34
Structure
Properties
Appearance (1), liquid.
Solubility slightly soluble in water. Soluble in ethanol, ethyl ether.
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 |
10000mg/kg[1] |
|
mouse inhalation LC50 |
25000mg/m3/2H[1] |
|
mouse intraperitoneal LD50 |
3570mg/kg[1] |
|
mouse intravenous LD50 |
720mg/kg[1] |
|
mouse oral LD50 |
3474mg/kg[1] |
|
rabbit skin LD50 |
> 20mL/kg[1] |
|
rat inhalation LC50 |
4250mg/m3[1] |
|
rat intramuscular LD50 |
> 8000mg/kg[1] |
|
rat intraperitoneal LD50 |
3.05mL/kg[1] |
|
rat oral LD50 |
7499mg/kg[1] |
|
rat skin LDLo |
6000mg/kg[1] |
Reproductive effect[1].
Human Toxicity
Table 2 Human toxicity values
|
human oral TDLo |
140mg/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 11405 Dibutylphthalate 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 solvent. For example, used in paints, resins.
Use as dispersing agent, emulsion stabilizer.
Use as repellent.
2, Industrial cleaning
Cleansing agent, paint remover in industrial cleaning.
Manufacturers
References
[1]: ChemIDplus. 84-74-2, Dibutyl phthalate
Update: 20141031(1); 20200614(2);