Registration Dossier
Registration Dossier
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EC number: 701-280-3 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Biodegradation in water: screening tests
Hydrocarbons, C11-C14, n-alkanes, isoalkanes, cyclics, <2% aromatics, a multi-component substance, biodegraded to an extent of 69% after 28 days (Shell, 1997). This study is considered to be reliable and the data are used as read-across data for the registered substance, Hydrocarbons, C11-C14 n-alkanes, isoalkanes, <2% aromatics.
Biodegradation in water and sediment: simulation tests
Biodegradation in water
Hydrocarbons, C11-C14, n-alkanes, isoalkanes, cyclics, <2% aromatics, biodegraded to an extent of 69% after 28 days in seawater that used the indigenous microorganisms in the seawater sample as a sole source of the inoculum. These data read across to Hydrocarbons, C11-C14, n-alkanes, isoalkanes, <2% aromatics.
Biodegradation in sediment
Hydrocarbons, C11-C14, n-alkanes, isoalkanes, <2% aromatics is readily biodegradable, based on read-across data. Therefore, simulation tests in sediment are not required.
Biodegradation in soil
In accordance with column 2 of REACH Annex IX, the simulation testing on ultimate degradation in soil does not need to be conducted as Hydrocarbons, C11-C14, n-alkanes, isoalkanes, <2% aromatics is readily biodegradable, based on read-across data. No data are available for Hydrocarbons, C11-C14, n-alkanes, isoalkanes, <2% aromatics. However, data are available from an OECD 304A Test Guideline study conducted on Hydrocarbons, C11-C14, n-alkanes, isoalkanes, cyclics, <2% aromatics and this study is presented below.
Hydrocarbons, C11-C14, n-alkanes, isoalkanes, cyclics, <2% aromatics, biodegraded to a great extent (>60%) in a silt loam soil at a rate comparable to the control, rapeseed oil (62 to 67%), within a two month test period as measured in respirometric oxygen consumption tests. The half-life, based on three tests was 45 days. This extent was replicated in two separate studies. These data are used as read-across data for Hydrocarbons, C11-C14, n-alkanes, isoalkanes, <2% aromatics).
Additional information
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