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EC number: 947-899-4
CAS number: -
The substance fatty acids C18-C22 (even numbered), tetraesters
with pentaerythritol is characterised by a low vapour pressure (< 0.0001
Pa at 25 °C), a poor water solubility (< 0.518 mg/L at 20 °C, OECD 105)
and a log Koc indicating a high adsorption potential to soil and
sediment particles (log Koc > 5). Based on the results of an
experimental study according to OECD 301F the substance is considered as
not readily biodegradable (3 % after 28 d, OECD 301F). Nevertheless, an
extensive elimination of the substance in sewage treatment plants is
expected by adsorption to suspended solids. According to the Guidance on
information requirements and chemical safety assessment, Chapter R.7b
(ECHA, 2017) once poorly soluble chemicals enter a standard STP, they
will be extensively removed in the primary settling tank and fat trap
and thus, only limited amounts will get in contact with activated sludge
organisms. Due to the high adsorption potential of the substance a high
removal from the influent water column is expected (Guidance on
information requirements and chemical safety assessment, Chapter R.7b;
ECHA, 2017). Therefore, the concentration of the substance in
conventional STP effluents is presumably negligible. However, if the
substance is released to the environment a partition from the water
phase to soil and sediment is assumed.
Abiotic degradation by hydrolysis is considered as not relevant
for the substance. Moreover, the substance is not volatile (VP < 0.0001
Pa at 25 °C) and thus evaporation to the air and the transport through
the atmospheric compartment is not likely. A bioaccumulation or
biomagnification within the food chain of the substance is not expected
due to low bioavailability and the high molecular weight (1370.31 –
1426.42 g/mol) limiting absorption of the substance. This is supported
by a low calculated BCF value of ≤ 3.16 L/kg ww (BCFBAF v3.01). Please
refer to IUCLID Section 5.3 for a detailed overview on bioaccumulation
of fatty acids C18-C22 (even numbered), tetraesters with pentaerythritol.
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.
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