Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Phototransformation in air

A calculation based on an 24h-average concentration of 0.5x10E6 OH/cm3 ave a half-life of TPP of 35.5 hours.


Half lives of 3 d (pH 9), 19 d (pH 7) and more than 28 d (pH 5) at 25 °C are reported (Mayer et al. 1981). All studys indicate TPP is relatively stable in acid media but hydrolyses in alkaline media.

Phototransformation in water

TPP degradates rapidly (within 1.04 min.) when irradiated at 254 nm at pH 3 and pH 10.