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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Environmental fate & pathways


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Administrative data

Link to relevant study record(s)

Description of key information

A test on the hydrolysis potential of DBP indicated that at pH 4.0 and 7.0 DBP was found to be stable, i.e. less than 10% hydrolysis after 5 days. The lowest half-life values occur at a pH of 9 resulting in a DT50 of 2.7 days at 50°C and 8.2 days at 39°C.

Key value for chemical safety assessment

Half-life for hydrolysis:
2.7 d
at the temperature of:
50 °C

Additional information

One study regarding hydrolysis is available. It was performed according to EU method C.7 at pH values of 4, 7 and 9 and a temperature of 50°C and, additionally at 39°C for pH = 9 (BASF, 1989).