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EC number: 259-105-7
CAS number: 54326-11-3
The adsorption/desorption study was not conducted as (benzoato-O,O')hydroxy(octadecanoato-O,O')aluminium is expected to decompose rapidly to carbon dioxide, water and inorganic aluminium species. At environmental pH (ca 7.0), aluminium will mainly be in the form of insoluble hydrated oxide species which, although likely to absorb onto soil, are not expected to be an environmental risk as they are naturally abundant in the environment.
accordance with column 2 of REACH Annex VIII, the adsorption/desorption
study does not need to be conducted as (benzoato-O,O')hydroxy(octadecanoato-O,O')aluminium
expected to be readily biodegradable and the relevant degradation
products decompose rapidly. The dissociation and biodegradation in the
environment of the substances would result in carbon dioxide, water and
hydrated aluminium oxide species.
data for adsorption/desorption was included in the REACH dossiers for
aluminium oxide or aluminium hydroxide. No data are available on the
partition coefficient of purely inorganic aluminium compounds as, in
accordance with column 2 of REACH Annex VII, the partition coefficient
studies do not need to be conducted as the substances are inorganic.
Aluminium is the most abundant metal to be found on earth making up 8.1%
of the Earth’s crust (Lide, 2008). However, it is never found in the
pure form but always in the form of minerals, for example bauxite, which
is an impure form of hydrated oxide ore. As aluminium compounds are
abundant in nature the adsorption/desorption of aluminium in the
environment is not expected to be scientifically relevant.
most cases the reactions to form the grease thickener occur in-situ
during the grease manufacturing process and consequently grease
thickeners normally only exist in the base oil matrix. In realistic use
scenarios, the thickeners will be contained in base oil, with the
formulated greases specifically designed to minimise the leaching of the
thickener. As such, and given the very low solubility of the substance
in water, the concentrations of the substance which would be available
for adsorption to soil or sediment are limited.
Lide DR (editor)
(2008) CRC Handbook of Chemistry and Physics (89th edition). CRC Press,
Taylor and Francis Group
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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