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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Classification & Labelling & PBT assessment

PBT assessment

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Administrative data

PBT assessment: overall result

tert-Amyl hydroperoxide
Type of composition:
legal entity composition of the substance
State / form:
Reference substance:
tert-Amyl hydroperoxide
PBT status:
the substance is not PBT / vPvB

The Log Kow for tert-amyl hydroperoxide has been read across from 1,1,3,3-Tetramethylbutyl hydroperoxide and was determined to be 2.9 (this value is supported by a QSAR estimated log octanol/water partition coefficient (KOWWIN and VCClab models) for tert-amyl hydroperoxide: Log Kow = 1.43 +/- 0.48). The test substance should thus have low potential for bioaccumulation, it is not classified as a PBT substance nor vP/vB.