Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

No biodegradation studies have been performed with the registration substance. However, reliable data are available for related Fischer-Tropsch process-derived materials in the relevant carbon number range (GTL Solvent GS160 and GTL Solvent GS190).

In an OECD 301F manometric respirometry test conducted in compliance with GLP, Hydrocarbons, C9-C12, n-alkanes, isoalkanes, <2% aromatics (GTL Solvent GS190) attained 80% degradation in 28 days (Vryenhoef, 2014a). The 10-day window criterion is not applicable for complex substances where sequential degradation of the constituents takes place (REACH guidance R.7b ECHA, 2017). The substance was therefore concluded to be readily biodegradable.

Hydrocarbons, C8-C11, n-alkanes, isoalkanes, <2% aromatics has been tested in an OECD 301F (manometric respirometry) test conducted in compliance with GLP (Best, 2014). The test substance attained 73% biodegradation in 28 days and was therefore considered to be readily biodegradable.

As both these studies are considered to be reliable, and are used as weight of evidence to determine that Hydrocarbons, C9-C11, n-alkanes, isoalkanes, <2% aromatics is readily biodegradable.

Additional information