Tricresyl phosphate

CAS Number

1330-78-5

Molecular Formula

C21H21O4P

Also known as:

Tricresyl phosphate; TCP; Tri-cresyl phosphate; Tritolyl phosphate; Phosphoric acid tricresyl ester

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Product Description

Tricresyl phosphate (TCP) CAS 1330-78-5
Tricresyl phosphate (TCP) is a mixture of cresyl ester isomers used industrially as a flame retardant, plasticizer, antiwear hydraulic additive and specialty solvent/additive for coatings and polymers. Commercial supplies are offered in technical and high-purity grades for formulation and synthesis applications. Handle per SDS and EHS guidance for organophosphate materials.

  • Applications
    Flame retardant additive
    Used as a liquid flame retardant/plasticizer in polymer formulations, coatings and textiles where organophosphate performance is required.
  • Plasticizer for specialty polymers
    Employed to impart flexibility and processability in PVC, nitrocellulose, and other specialty resin systems.
  • Hydraulic and lubricating additive
    Used as an antiwear and high-temperature additive in hydraulic fluids, lubricants and heat transfer media.
  • Coatings and varnish solvent/plasticizer
    Functions as a solvent, plasticizer and performance additive in lacquers, varnishes and industrial coatings.
  • Chemical intermediate and reagent
    Used as a building block and solvent in specialty chemical synthesis and formulation chemistry.
  • Electrical insulating fluid / heat transfer medium
    Applied in select specialty formulations requiring flame retardancy and thermal stability.

Technical Parameters

Parameter Value
Appearance Colorless to pale yellow viscous liquid
Melting point / Pour point (°C) −33
Boiling behavior 265 °C
Density (g·mL⁻¹ at 25 °C) 1.143
Refractive index (n²⁰_D) 1.555
Vapor pressure (mmHg at 25 °C) 0.03
Water solubility (mg·L⁻¹ at 25 °C) 0.36

Applications

Plasticizers/Dispersing Agents

Quick Information

EINECS 215-548-8
Molecular Weight 368.36 g/mol

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