Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 942-330-6
CAS number: -
products of fatty acids, tall oil and fatty acids, C18 unsaturated,
trimers and fatty acids, C18 unsaturated, dimers with
(9Z)-octadec-9-en-1-amine is the salt of its different Fatty acids with
substance is entering the aquatic environment it is expected that the
substance with a surplus of water due to its salt like character may
dissociate into its components Fatty acid dimer and trimer components,
tall oil components and their counterpart oleylamine. Based on this
assumption the components will be evaluated either on a weight of
evidence approach for a similar substance or individually with regard to
their biodegradation behavior in the environment.
biodegradation test result is available for the test item itself.
Therefore, the evaluation is based on a weight of evidence approach to a
closely related substance as well as on the individual components:
aquatoxicity data for the components
acid dimer and trimer compounds:
biodegradation studies are available for the fatty acid dimers with coco
alkylamine: In a Manometric Respirometry Test (OECD 301F) the test item
reached a biodegradation rate of 27% based on CO2 after 28d. In a second
study an enhanced CO2- Headspace test (OECD 310) covering a period of 60
days, the test item reached a biodegradation rate of 27% based on CO2
after 28d and 39 % based on CO2 after 60d. In a third study, a BODIS
test (ISO10708), the test item reached a biodegradation rate of 40%
based on THOD after 28d.
different groups of fatty acids dimers were analyzed for biodegradation
by the HPV consortium “Fatty acids Dimers and Trimers”. The
biodegradation data show that none of these substances are substantially
biodegradable in the environment with degradation rates of < 10%.
and trimer fatty acid components are therefore considered to be not or
only moderately degradable.
acids, Tall oil:
major component in tall oil - olic acid - experimental results are
available: In an OECD 301 D test biodegradation results of >90% were
measured after 28d and fulfilling the 10d window. The substance was
therefore evaluated to be readily biodegradable.
the tall oil was assessed for biodegradation using QSAR modelling with
Biowin 4.10 by US-EPA. In all 6 models of Biowin 4.10 tall oil was
assessed to be readily biodegradable.
is found to be readily biodegradable but failing the 10d window under
OECD 301 screening conditions. In an EU Risk assessment of primary
alkylamines “Primary Alkyl Amines, 2008” (Draft) and in a RAC opinion
“Background document to the opinion proposing harmonized classification
and labelling at Community level of amines, coco alkyl”, it is
concluded, that in the majority of the tests the pass level for ready
biodegradability (60% CO2 evolution or O2 consumption) was reached
within the test period (generally 28 days), but not within the 10-days
window…. Based on the results of all tests the primary alkyl amines
could be classified as “readily degradable, but failing the 10-days
window”. These results are supported by Biowin vs. 4.10 calculations
indicating that Oleylamine is readily biodegradable.
the available data, it can be concluded that fatty acid dimer and trimer
components are not or only moderately biodegradable, whereas tall oil
fatty acids and oleylamine are readily biodegradable or readily
biodegradable but fail the 10d window.
in water and sediment: simulation tests
accordance with column 2 of REACH Annex IX, the simulation testing on
ultimate degradation in surface waters and sediment simulation testing
does not need to be conducted if the substance is readily biodegradable
or highly insoluble in water.
substance is the salt of the components fatty acids and their counter
ion oleylamine, which are expected dissociate in water, the individual
components are evaluated separately: Components like oleylamine and tall
oil are readily biodegradable whereas the components (Fatty acids, dimer
and trimer components) are not readily biodegradable but highly
insoluble in water. Therefore, further simulation testing is not
accordance with column 2 of REACH annex IX, further degradation testing
does not need to be conducted as the chemical safety assessment does not
indicate a need for further investigation. This holds true for the Fatty
acid components (no biodegradation, however, aquatox > 1000 mg/L).
is readily biodegradable. In Annex IX column 2 of the Regulation (EC) No
1907/2006 REACH concerning the Registration, Evaluation, Authorisation
and Restriction of Chemicals (REACH), it is suggested, that a study on
"soil simulation testing" does not need to be conducted if "the
substance is readily biodegradable”.Therefore,
further degradation testing in soil is not provided.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again