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Physical & Chemical properties

Stability in organic solvents and identity of relevant degradation products

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Description of key information

The main use of lithium salts of monocarboxylic acids C14 -C22 is as thickeners in formulated greases. Given the primary use of lithium salts of monocarboxylic acids C14 -C22 as grease thickeners, the stability of the substances in organic solvents is not considered to be critical. The substances are typically manufactured and used in situ in base oil and over the extensive history of the use of lithium soaps to thicken base oil in grease formulation, the stability of the lithium-based thickeners in different base oils has been well characterised. The estimated shelf-life of formulated greases is around 3 years (Chevron) and analysis of various thickener substances has indicated that the isolated substances would have a similar stability.

 

https://www.chevronmarineproducts.com/content/chevron-marine/en_UK/knowledge/lubricants/technical-bulletins/_jcr_content/par/download/file.res/Chevron_InfoBulletin01_ShelfLife_v1013.pdf

Additional information

Given the primary use of lithium salts of monocarboxylic acids C14 -C22 as grease thickeners, the stability of the substances in organic solvents is not considered to be critical.