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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

Additional information

In accordance with Column 2 of REACH Annex VIII, the activated sludge respiration inhibition study does not need to be conducted as the substance is readily biodegradable and the applied test concentrations are in the range that can be expected in the influent to a sewage treatment plant.

The registration substance is a substance of unknown or variable composition (UVCB). Its constituents incorporate an alcohol functional group on an alkyl chain, with carbon numbers in the range (C14-C20, predominantly C16-C18). The alkyl structures are predominantly monobranched (methyl or ethyl branching, at or beyond the 6 carbon position) and may be considered ‘essentially linear. Therefore, available data for linear constituents (C14 – C18) are presented as supporting data.

A reliable study for octadecanol, conducted according to an appropriate national standard method is available (Kirch, 1994). An EC0 >10 000 mg/l after 30 minutes contact time was determined for the species Pseudomonas putida, i.e. the EC50 is greater than the limit of solubility.

In other available secondary sources, to which no reliability could be assigned, EC50 values >10 000 mg/l are reported for tetradecanol and hexadecanol.