Registration Dossier
Registration Dossier
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EC number: 283-815-6 | CAS number: 84731-55-5
Endpoint summary
Administrative data
Description of key information
Additional information
The vapour pressure of lithium isooctadecanoate is less than 10 E-10 Pa and it is expected that the substance would not enter the atmosphere.
Lithium isooctadecanoate is considered readily biodegradable and decomposes rapidly to carbon dioxide, water and lithium ions. Following decomposition of lithium isooctadecanote, the lithium ions are expected to behave similarly to other metals, such as sodium, potassium and calcium, with ions in the aqueous environment remaining in solution. The REACH dossier for lithium hydroxide notes that lithium has a low potential for adsorption based on a Kd value of below 3 for soil.
Lithium isooctadecanoate is expected to have a low potential for bioaccumulation. The substance consists of a lithium salt of isooctadecanoic acid; lithium is expected to have a low potential for bioaccumulation, with a BCF of around 8 L/kg in freshwater fish (Barber et al. 2006), and isooctadecanoic acid is readily biodegradable (Coenen 1990).
In most cases the reactions to form the grease thickener occur in situ in base oil during the grease manufacturing process and consequently these grease thickeners normally only exist in the base oil matrix. The matrix effect is recognised by the OECD Lubricant Emission Scenario document (OECD 2004). 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 low solubility of the substance in water, the concentration of the substance which would be available in the environment is limited.
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.
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