Registration Dossier

Environmental fate & pathways

Hydrolysis

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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).