Para-Diethyl Benzene

Other Trading Names:

  • PEDB

CAS Number: 105-05-5

HS Code: 290290000

Types of Packaging:

  • 170kg iron drum
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Para-Diethyl Benzene

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colorless transparent liquid



P-diethylbenzene content

≥0.15 %

C9 aromatic hydrocarbon

≤ Balanced %

C11+ aromatic hydrocarbon

≤0.2 %

Bromine index

≤5.0 mgBr/100g

Total sulfur

≤1.0 mg/kg

Total nitrogen

≤1.0 mg/kg

Total chlorine

≤1.0 mg/kg

Color (Pt-Co)


Chemical Description

  • Para-Diethylbenzene, also known as 1,4-diethylbenzene, is an organic compound with the molecular formula C10H14.
  • It is a derivative of benzene where two ethyl groups are substituted at the para (1,4) positions on the benzene ring.
  • Para-Diethylbenzene appears as a colorless liquid under standard conditions and has a faint aromatic odor.
  • This compound is one of the isomers of diethylbenzene, the others being ortho- (1,2-diethylbenzene) and meta- (1,3-diethylbenzene).
  • The molecular weight of para-diethylbenzene is 134.22 g/mol.
  • The boiling point of para-diethylbenzene is approximately 184°C (363°F), and it has a melting point of about -31°C (-24°F).
  • The density of para-diethylbenzene is around 0.867 g/cm³ at 20°C.
  • It is insoluble in water but soluble in organic solvents such as ethanol, ether, and benzene.
  • Para-Diethylbenzene is typically produced by the alkylation of benzene with ethylene in the presence of a catalyst.
  • It is used primarily as an intermediate in the manufacture of other chemicals, including plastics, resins, and rubber.
  • This compound also finds applications in the production of high-performance materials and in the petrochemical industry.
  • Para-Diethylbenzene can undergo further chemical reactions such as nitration, sulfonation, and halogenation, which are useful in synthesizing various derivatives.
  • Safety considerations include its flammability, as it can form explosive mixtures with air.
  • When handling para-diethylbenzene, appropriate personal protective equipment (PPE) such as gloves and goggles should be used to avoid skin and eye contact.
  • In case of a spill, it is advised to ventilate the area and clean it up using inert absorbent materials.
  • Para-Diethylbenzene should be stored in a cool, well-ventilated area away from sources of ignition.
  • It should be kept in tightly closed containers to prevent evaporation and contamination.
  • This compound may also be subject to regulations regarding its transportation and disposal due to its flammability and potential environmental impact.
  • Para-Diethylbenzene can be hazardous to aquatic life, and measures should be taken to prevent its release into the environment.
  • In the context of laboratory use, para-diethylbenzene should be handled in a fume hood to avoid inhalation of vapors.
  • Waste containing para-diethylbenzene should be disposed of according to local and federal regulations to minimize environmental contamination.
  • The compound’s chemical structure contributes to its physical and chemical properties, influencing its reactivity and use in various industrial applications.
  • Para-Diethylbenzene role as an intermediate makes it a valuable chemical in the synthesis of more complex organic compounds.
  • Its relatively simple structure compared to other aromatic compounds makes it a model substrate in studies of aromatic substitution reactions.
  • Para-Diethylbenzene properties also make it useful in the study of solvent effects in chemical reactions, particularly in organic chemistry research.
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Para-Diethyl Benzene