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EC number: 259-105-7
CAS number: 54326-11-3
on read across, (benzoato-O,O')hydroxy(octadecanoato-O,O')aluminium
has been shown to be readily biodegradable (Harlan 2013). Because the
substance is readily biodegradable, the hydrolysis, biodegradation
simulation tests in soil and sediment and adsorption/desorption
endpoints have been waived.
reactions to form the grease thickener occur in-situ during the grease
manufacturing process and consequently these grease thickeners only
exist in the base oil matrix. The matrix effect, as recognised by the
OECD Lubricant Emission Scenario document (OECD 2004), needs to be taken
into account as the process of manufacturing the thickener in inert base
oil is likely to influence factors such as availability of the
thickeners. In the grease manufacturing process unique interactions,
more appropriately defined as physical bonding effects, occur between
the base oils and the thickener. The chemistry is complex and
interactions between the thickener and base oil do not strictly fall
under the definitions of a reaction product nor do they act as a simple
mixture of components. In realistic use scenarios, the thickener will be
contained in base oil, with the formulated greases specifically designed
to minimise the leaching of the thickener. Therefore, during use, the
concentrations of the substance which would be bioavailable are limited.
The proprietary study (Shell Technology Centre, 2013) supports this
conclusion by showing that metal ions are not leached from metal grease
thickeners contained within base oil when exposed to an aqueous
OECD (2004) OECD
Series on emission scenario documents, Number 10: Emission scenario
document on lubricants and lubricant additives. Environment directorate:
Joint meeting of the chemicals committee and the working part on
chemicals, pesticides and biotechnology. ENV/JM/MONO(2004)21
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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