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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

The ready biodegradability of reaction mass of DIPE and 2 -methylpent-2 -ene in water was tested according to ISO 14593:2005 under GLP. No significant degradation (20%) of the test item was observed after 28 days. Therefore, the reaction mass is considered as not readily biodegradable.

This finding is corroborated by the fact that the main constituent with the highest concentration, DIPE, was found to be not readily biodegradable [1]. 2 -methylpent-2 -ene was however predicted to be biodegradable (QSAR, BIOWIN v.4.10; see CSR, Chapter 8). At least inherent biodegradability of

2 -methylpent-2 -ene is supported by conclusions on biodegradability of C6 alkenes [2].

[1] Stone CM, Watkinson RJ (1983) ISOPROPYL ETHER: AN ASSESSMENT OF READY BIODEGRADABILITY, Shell biosciences Laboratory, Sittingbourne Research Centre, Sittingbourne, Kent, U.K., Report No. SBGR.83.428

[2] OECD SIDS: Higher Olefins-Category, SIDS Initial Assessment Report For SIAM19; Berlin, Germany, 19-21 October 2004, prepared by the American Chemistry Council, Higher Olefins Panel