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  • Para-Dodecylphenol (PDDP) CAS 27193-86-8

Para-Dodecylphenol (PDDP) CAS 27193-86-8

Para-Dodecylphenol (PDDP), CAS 27193-86-8, is a commercial dodecyl-substituted phenol used as a reactive intermediate for phenolic resins, lubricant-additive chemistry and related alkylphenol derivatives. The CAS number identifies dodecylphenol rather than a fixed pure isomer, so buyers should define dodecylphenol content, para substitution, alkyl-chain distribution, free phenol, color and water for the intended process. Current COA, TDS and SDS are available for the offered bulk grade.

  • CAS: 27193-86-8
  • Synonyms: Para-dodecylphenol, p-Dodecylphenol, Dodecylphenol, Alkylphenol C12, Dodecyl substituted phenol
  • Molecular Formula: C₁₈H₃₀O
  • Grade: Dodecylphenol content, para substitution, color and free phenol to the agreed specification
  • Package: 200kg iron drum or 50kg plastic drum packaging
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Product Description

Dodecylphenol properties: a mixture of various isomers, prepared by alkylation of phenol with tetrapropylene (isododecene) catalyzed by a cation-exchange resin or activated clay. It is a raw material for lubricating-oil antioxidants and additives, and is also used in organic synthesis. Long-chain alkylphenols are widely used in detergents, fuel-oil additives, lubricants and polymers, and are among the raw materials for phenolic resins.

Application: used in epoxy crystal adhesives to improve surface leveling and accelerate curing; recommended addition level 0.5-10%.

Packing: 200kg iron drum or 50kg plastic drum packaging.

Density0.9±0.1 g/cm³
Boiling point362.6±11.0 °C at 760 mmHg
Molecular formulaC₁₈H₃₀O
Molecular weight262.43 g/mol
Flash point190.9±8.7 °C
Exact mass262.2297
Polar surface area20.23 Ų
LogP7.24
AppearanceTransparent viscous oil
Vapor pressure0.0±0.8 mmHg (25 °C)
Refractive index1.497
Storage conditionsRoom temperature

FAQ - Technical & Supply Chain

  • Q:

    Is CAS 27193-86-8 the correct identity for Dodecylphenol?

    A: Yes. CAS 27193-86-8 identifies Dodecylphenol. CAS 27193-28-8 identifies tetramethylbutylphenol, commonly associated with tert-Octylphenol, and must not appear on a PDDP order or shipping document.
  • Q:

    What is Para-Dodecylphenol used for?

    A: Para-Dodecylphenol is mainly used as an intermediate for lubricant additives, antioxidants, surfactants, fuel and polymer additives, and phenolic-resin derivatives. It can also be used in selected epoxy systems to improve leveling and accelerate cure.
  • Q:

    Does the Dodecylphenol CAS number guarantee one pure para isomer?

    A: No. Commercial Dodecylphenol can contain an alkyl-chain and positional-isomer distribution. If the process requires Para-Dodecylphenol, specify the para-substitution basis, dodecylphenol content, alkyl distribution and analytical method instead of relying on the CAS number alone.
  • Q:

    What should a PDDP purchase specification include?

    A: Define dodecylphenol content, para-isomer requirement, hydroxyl value or equivalent assay, free phenol, color, water and physical form. Also confirm destination regulatory acceptance for alkylphenols. Para-Dodecylphenol carries a C12 alkyl group and has different performance from shorter-chain alkylphenols.
  • Q:

    How should Para-Dodecylphenol be stored and handled?

    A: Para-Dodecylphenol is normally a transparent to viscous oily liquid and is generally stored at room temperature in a tightly closed container. Protect it from contamination and prolonged exposure to air, and use suitable personal protection and spill-control measures.

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