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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The reaction mass is readily biodegradable (according to OECD criteria).

Additional information

Biodegradation in water

An experimental study with the reaction mass was conducted to assess the readily biodegradability according to the OECD guideline 310. Predominantly domestic sewage sludge (adapted) were exposed to an initial test item concentration of 20.15 mg/l DOC for 28 d in a closed system under aerobic conditions. The degradation of the test item was measured as CO2 evolution over the time of the test. After 7 days 95.06 % of the initial amount were degraded and the 10-day window criterion was met. Therefore, the test item can be considered as readily biodegradable according to OECD criteria (Rhodia, 2009).

This result was confirmed by the three supporting studies (MITI 1992, MITI 1992 and BASF AG 1998) which assessed the biodegradability of the single components of the reaction mass. In all studies the compounds were considered as readily biodegradable.

Biodegradation in water and sediment

The study does not need to be conducted because the substance is readily biodegradable.

Biodegradation in soil

The study does not need to be conducted because the substance is readily biodegradable. In addition, the calculated Koc-values of the single components, namely cyclohexanol and cyclohexanone, adsorption to solid soil phase (e.g. clay) is not expected( range of Koc: 8.11 -15.15).