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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Surface tension

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Link to relevant study record(s)

Description of key information

Substances in the lithium salts of monocarboxylic acids C14 -C22 category have increasing surface tension with increasing carbon number. As the cut-off for being considered surface active is 60 mN/m and lithium behenate, the longest chain length category member, only slightly exceeds this (61.8 - 65.9 mN/m), category members with carbon chain lengths of less than 22 are considered to have surface active properties. This is supported by experimental data on lithium myristate, which gives a surface tension of 34 mN/m, and lithium 12 -hydroxystearate, which gives a surface tension of 52 mN/m.

Key value for chemical safety assessment

Additional information

The surface tensions of substances in the lithium salts of monocarboxylic acids C14-C22 category have been determined in GLP-compliant studies following OECD guideline 115. The data on lithium myristate, lithium 12 -hydroxystearate and lithium behenate are taken from proprietary study reports (Harlan 2012, Harlan 2013). Studies are currently ongoing for lithium stearate, fatty acids C16 -18 lithium salts, fatty acids C16 -22 lithium salts, fatty acids C16 -18 (even numbered) saturated and C16 -20 (even numbered) unsaturated lithium salts, and tallow lithium salt.