Triphenyl Phosphate: A Historical and Modern Overview in Light of ECHA’s New Classification

Triphenyl phosphate (TPhP) is an organophosphate ester commonly used as a flame retardant and plasticizer. Its discovery dates back to the early 20th century, when flame retardants were first explored to improve fire safety in plastics and textiles. Over time, TPP became widely used in various industries for its ability to inhibit combustion and enhance material flexibility. However, recent studies and increased regulatory scrutiny have raised concerns about its impact on human health and the environment.

A Brief History of Triphenyl Phosphate

TPhP was first synthesized in the late 19th century and its flame-retardant properties were quickly recognized. It became a popular additive in a wide range of materials, including plastics, textiles, and building materials. Its versatility and effectiveness led to its widespread use in consumer products such as furniture, electronics, and automobiles.

Uses of Triphenyl Phosphate

• Flame Retardant: TPhP is primarily used as a flame retardant in various materials to prevent or slow down the spread of fire.
• Plasticiser: It is also used as a plasticizer in polymers to increase their flexibility and durability.
• Other Applications: TPhP can be found in hydraulic fluids, lubricants, and as a component in some pesticides.
  

Conclusion

The ECHA's decision to list TPhP as an SVHC marks a significant step towards protecting human health and the environment. While TPhP has been a valuable chemical in various industries, its potential risks can no longer be ignored. The focus now shifts to finding and implementing safer alternatives to ensure a healthier and more sustainable future.
For more information, see ECHA’s announcement here.

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Sources

• https://echa.europa.eu/-/echa-adds-one-hazardous-chemical-to-the-candidate-list-1
• https://pubchem.ncbi.nlm.nih.gov/compound/Triphenyl-phosphate
• https://www.sciencedirect.com/topics/chemistry/triphenyl-phosphate