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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Phototransformation in water

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Administrative data

Link to relevant study record(s)

Description of key information

The photolysis screening test of 77PD indicates that this compound has a half-life in aqueous solution of 2 hours when exposed to sunlight and a half life of 4 hours in the dark (23°C), (Monsanto, 1980).

Key value for chemical safety assessment

Half-life in water:
2 h

Additional information

The result of the study performed with and without sunlight show that light has an accelerating effect on the degradation of 77PD in water.