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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Screening test on ready biodegradability (OECD 301F)

Under test conditions no biodegradation observed

Aerobic Aquatic Mineralization in Surface Water (OECD 309):

DT50 water > 1000 days at 20 °C

Aerobic Aquatic Water/Sediment Systems (OECD 308):

DT50 water: 2.7 - 4.8 days at 20 °C

DT50 water/sediment: 127 - >365 days at 20 °C

Anaerobic Aquatic Water/Sediment Systems: (OECD 308):

DT50 water: 4.9 - 5.2 days at 20 °C

DT50 water/sediment: >365 days at 20 °C

Aerobic Biodegradation in soil (OECD 307)

DT50 soil: 22-177 days at 20-25 °C

Anaerobic Biodegradation in soil (OECD 307)

DT50 soil: > 365 days at 20-25°C

 

Additional information

The substance is not readily biodegradable following the screening criteria according to OECD and mineralization in surface water is negligible (DT50 > 1000 days at 20 °C). If released into natural water the substance is quickly eliminated from the water body, by translocation into the sediment (DT50 water 2.7 – 4.8 days at 20 °C). The DT50 values for the substance in the entire water-sediment systems were determined to range between 126.7 days and > 365 days at 20 °C under aerobic conditions. Also in soil the parent substance degrades under aerobic conditions. The determined half life time in soil ranged from 22 to 177 days at 20-25 °C. No transformation products were formed under anaerobic conditions.

Remark: Since its 32nd meeting the Member State Committee has started to require new simulation degradation studies to be carried out around neutral pH values and at 12 ˚C, which is understood as the mean temperature of European surface waters (ECHA 2014: Guidance on Information Requirements and Chemical Safety Assessment, Chapter R.11). None of the present biodegradation studies has been performed at 12 °C and the determined degradation rates were not extrapolated to European mean temperature.