Tricresyl phosphate

Tricresyl Phosphate

Tricresyl phosphate (TCP) is an organophosphate compound that is used as a plasticizer and a flame retardant. It is a colorless, viscous liquid, although commercial samples are typically yellow due to impurities. TCP is a mixture of isomers, with the most common being tri-o-cresyl phosphate.

Chemical Structure and Properties

TCP is composed of three cresyl groups attached to a phosphate group. The chemical formula is C₂₁H₂₁O₄P. The structure of tri-o-cresyl phosphate, one of the isomers, is shown below:

Structure of tri-o-cresyl phosphate

TCP is known for its flame-retardant properties and is used in a variety of applications, including as a plasticizer in the manufacture of plastics and rubbers.

Uses

TCP is primarily used as a plasticizer in the production of vinyl plastics and as a flame retardant in various materials. It is also used as an additive in lubricants and hydraulic fluids. Due to its ability to reduce flammability, TCP is used in the production of fire-resistant materials.

Health and Safety

Exposure to TCP can be hazardous. It is known to be a neurotoxin, and prolonged exposure can lead to organophosphate poisoning. Safety measures should be taken to minimize exposure, especially in industrial settings where TCP is used.

Environmental Impact

TCP can persist in the environment and may pose risks to aquatic life. It is important to manage and dispose of TCP-containing products properly to minimize environmental contamination.

Related Compounds

TCP is related to other organophosphate compounds, such as triphenyl phosphate and tributyl phosphate, which are also used as plasticizers and flame retardants.

Related Pages

• Organophosphate
• Plasticizer
• Flame retardant

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  Tri-o-cresyl phosphate structure
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  Apiol structure
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  Parsley leaves