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Di(2-ethylhexyl) terephthalate (DEHT)

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Identification
Molecular formula
C24H38O4
CAS number
6422-86-2
IUPAC name
bis(2-ethylhexyl) benzene-1,4-dicarboxylate
State
State

Di(2-ethylhexyl) terephthalate is a high boiling point liquid at room temperature, which makes it useful in a variety of industrial applications.

Melting point (Celsius)
-67.00
Melting point (Kelvin)
206.15
Boiling point (Celsius)
383.00
Boiling point (Kelvin)
656.15
General information
Molecular weight
390.57g/mol
Molar mass
390.5670g/mol
Density
0.9850g/cm3
Appearence

Di(2-ethylhexyl) terephthalate is a clear, colorless to a slightly yellowish liquid. It is known for having a minimal odor and its appearance does not change significantly when subjected to the conditions of standard temperature and pressure.

Comment on solubility

Solubility of bis(2-ethylhexyl) benzene-1,4-dicarboxylate

The solubility of bis(2-ethylhexyl) benzene-1,4-dicarboxylate, often abbreviated as DEHP, is a significant characteristic that influences its applications and behavior in various environments. This compound is primarily known for its role as a plasticizer in polyvinyl chloride (PVC) products. When discussing its solubility, consider the following key points:

  • Organic Solvents: DEHP is highly soluble in organic solvents such as acetone, benzene, and ethyl acetate, making it useful for formulations that require high plasticizing efficiency.
  • Water Solubility: In contrast, its solubility in water is very low, typically around 0.005 mg/L, indicating that it is hydrophobic and does not dissolve appreciably in aqueous solutions.
  • Temperature Dependency: Solubility may increase with rising temperatures, especially in organic solvents where DEHP can dissolve well, enhancing its effectiveness as a plasticizer.

As expressed, the limited solubility in water combined with good solubility in organic solvents makes DEHP a compound that is versatile for industrial use but also requires careful handling due to environmental concerns. The hydrophobic nature of this compound necessitates consideration during disposal and environmental assessments to mitigate potential risks.

Interesting facts

Interesting Facts about bis(2-ethylhexyl) benzene-1,4-dicarboxylate

Bis(2-ethylhexyl) benzene-1,4-dicarboxylate is a fascinating compound with various applications and attributes that make it significant in different fields. Here are some key facts that stand out:

  • Plasticizer Properties: This compound is widely used as a plasticizer in the manufacturing of flexible PVC materials. Plasticizers enhance the flexibility, workability, and performance of polymers, making them essential in many products.
  • Environmental Compatibility: Bis(2-ethylhexyl) benzene-1,4-dicarboxylate is considered to have lower toxicity compared to some other plasticizers, such as phthalates. This makes it a more environmentally friendly choice in industries focusing on sustainability.
  • Applications: Beyond its use in PVC, this compound is also utilized in coatings and adhesives, providing excellent performance characteristics. Its versatility allows it to be employed across various industrial sectors.
  • Chemical Structure: The molecular structure of this compound consists of a benzene ring with two carboxylate functional groups, which contribute to its plasticizing capabilities and overall chemical stability.
  • Research Significance: Scientists continue to study this compound to understand its behavior under various environmental conditions, which is crucial for predicting its long-term effects on ecosystems and human health.

This compound exemplifies the intersection of chemistry, engineering, and environmentally conscious practices, highlighting how careful selection of materials can lead to better product performance while minimizing ecological impact.

Synonyms
6422-86-2
BIS(2-ETHYLHEXYL) TEREPHTHALATE
Kodaflex DOTP
1,4-Benzenedicarboxylic acid, bis(2-ethylhexyl) ester
DEHTP
Eastman 168
Terephthalic acid, bis(2-ethylhexyl) ester
CCRIS 7052
diethylhexyl terephthalate
HSDB 6150
Palatinol DOTP
EINECS 229-176-9
Plasticizer 168
BRN 2302822
DTXSID7027625
Eastman TM 168
AI3-17104
4VS908W98L
ADK Cizer D 810
1,4-Benzenedicarboxylic acid, bis(2-ethylhexyl)ester
DTXCID507625
1,4-Benzenedicarboxylic acid, 1,4-bis(2-ethylhexyl) ester
EASTMAN 168 PLASTICIZER
EC 229-176-9
UN 488
BIS(2-ETHYLHEXYL) TEREPHTHALATE [HSDB]
229-176-9
Di(2ethylhexyl) terephthalate
DIETHYLHEXYL TEREPHTHALATE [INCI]
Terephthalic acid, bis(2ethylhexyl) ester
(+-)-BIS(2-ETHYLHEXYL) TEREPHTHALATE
1,4Benzenedicarboxylic acid, bis(2ethylhexyl) ester
1,4-Benzenedicarboxylic acid, bis(2-ethylhexyl)ester (9CI)
Eastman DOTP Plasticizer
Di(2-ethylhexyl) terephthalate
Di-(2-ethylhexyl) terephthalate
bis(2-ethylhexyl) benzene-1,4-dicarboxylate
dioctyl terepthalate
CAS-6422-86-2
bis[(2R)-2-ethylhexyl] benzene-1,4-dicarboxylate
MFCD00072256
bis(2-ethylhexyl)terephthalate
UNII-4VS908W98L
Terephthalic acid, bis(2-ethylhexyl)ester
Dioctyl terephthalate (DOTP)
Dioctyl terephthalate, ~80%
SCHEMBL110764
di-(2-ethylhexyl)terephthalate
Dioctyl terephthalate, >=96%
CHEMBL1871770
Tox21_200461
Tox21_300322
JP 110
MSK002105
AKOS028108403
NCGC00164195-01
NCGC00164195-02
NCGC00164195-03
NCGC00254126-01
NCGC00258015-01
LS-15075
Terephthalic acid bis(2-ethylhexyl) ester
Terephthalic acid, bis-2-ethylhexyl ester
1ST002105
MSK002105-1000
NS00007552
(+/-)-BIS(2-ETHYLHEXYL) TEREPHTHALATE
1,4-bis(2-ethylhexyl) benzene-1,4-dicarboxylate
1ST002105-1000
Bis(2-ethylhexyl) terephthalate, analytical standard
Q5279087
Terephthalic acid, bis-2-ethylhexyl ester 100 microg/mL in Acetonitrile
Bis[(2R)-2-ethylhexyl] benzene-1,4-dicarboxylate Solution in Hexane, 1000?g/mL
Bis[(2R)-2-ethylhexyl] benzene-1,4-dicarboxylate Solution in Hexane, 1000mug/mL