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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Koc values of between 3500 and 18000 l/kg determined in laboratory experiments (Johnson et al., 1998) show that Octylphenol (OP) tends to adsorb strongly onto organic matter. Therefore, adsorption is likely to play an important role as a sequestration process in soil, sediment, and sewage sludge. Adsorption to solids such as sediments and sewage sludge is likely an important removal process for OP.

The available data suggest that volatilization of OP is likely to be a removal process from water which is of low to medium importance (HLC of 0.52 Pa m³/mol at 298 K).