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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Adsorption / desorption

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Description of key information

From the two studies provided for this endpointit is expected that 2-decyltetradecanol will be immobile in soils and sediment. However, according to a ready biodegradation study of Flach (2012) 2-decyltetradecanol is readily biodegradable.
In conclusion, whilst the LCA may adsorb readily to sediment, sludge and soil, it will rapidly degrade. In addition, where a substance does sorb to sediment or soil, the substance will be readily degraded as it desorbs.Based on the evidence in section 5.2, 2-decyltetradecanol is readily biodegradable and unlikely to persist in the environment.

Key value for chemical safety assessment

Additional information

Annex IX of REACH includes, under Column 1 of Section 9.3.3, arequirement for further information on adsorption/desorption depending on the results of the study required in Annex VIII (adsorption/desorption screening study). Under Column 2 of the same Annex, the specific rules for adaptation states that these testing requirements may be waived when, inter alia, the substance and its degradation products decompose rapidly. 2-Decyltetradecanol is a member of the Guerbet Alcohols and the OECD SIDS Long Chain Alcohols (LCA) categories, which comprise a range of straight and branched long chain alcohols C12-32 and C6-22 respectively. As defined in the ‘Read Across Justification Document’ section 13, data provided for these categories is representative of 2-decyltetradecanol and suitable for assessment purposes. Experimental data for the Guerbet and LCA categories has been evaluated and trends in the environmental fate of long chain alcohols was used to extrapolate to the C24 alcohol, 2-decyltetradecanol for the adsorption endpoint. From the two studies provided for this endpointit is expected that 2-decyltetradecanol will be immobile in soils and sediment. However, 2-decyltetradecanol is readily biodegradable shown in a study according to OECD Guideline 301B. In conclusion, whilst 2-decyltetradecanol may adsorb readily to sediment, sludge and soil, it will rapidly degrade. In addition, where a substance does sorb to sediment or soil, the substance will be readily degraded as it desorbs. Based on the evidence in section 5.2, 2-decyltetradecanol is readily biodegradable and unlikely to persist in the environment.