Lithium stearate

Structural formula
General
Surname	Lithium stearate
other names	Lithium octadecanoate IUPAC
Molecular formula	C 18 H 35 LiO 2
Brief description	colorless powder
External identifiers / databases
CAS number 4485-12-5 EC number 224-772-5 ECHA InfoCard 100.022.521 PubChem 517357 Wikidata Q420096
properties
Molar mass	290.41 g · mol -1
Physical state	firmly
density	1.025 g cm −3
Melting point	220 ° C
solubility	almost insoluble in water
safety instructions
GHS labeling of hazardous substances no GHS pictograms H and P phrases H: no H-phrases P: no P-phrases
Toxicological data	15,000 mg kg −1 ( LD 50 ,  rat ,  oral )
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Lithium stearate , C ₁₇ H ₃₅ COOLi is the lithium salt of stearic acid and is one of the metal soaps . The colorless powder, which is almost insoluble in water and alcohol, has a melting point of 220 ° C and is mainly used for the production of lubricating greases and waxes from oils. The resulting lubricating greases are thermally stable up to around 150 ° C and remain lubricious down to −20 ° C. Before the success of lithium batteries, this was the largest application of the metal lithium in terms of volume . Lithium stearate is also used in smaller quantities to produce pencils . The oral toxicity of the compound is extremely low, which is why it is also used in cosmetic products.

Individual evidence

1. ↑ ^{a b c d} data sheet Lithium stearate at AlfaAesar, accessed on December 26, 2019 ( PDF )(JavaScript required) .
2. ^ ^{A b} D. L. Perry, SL Phillips: Handbook of Inorganic Compounds: An Electronic Database. CRC Press, 1995, ISBN 978-0-8493-8671-8 .
3. ^ Entry on lithium stearate in the ChemIDplus database of the United States National Library of Medicine (NLM) .
4. ^ Journal of the American College of Toxicology. Vol. 1 (2), p. 143, 1982.
5. ↑ Uniterra.de: Lithium .
6. ^ Brockhaus ABC chemistry in two volumes, VEB FA Brockhaus Verlag Leipzig, 1965, page 805.
7. ^ G. Milne: Gardner's Commercially Important Chemicals: Definitions, Trade Names, and Properties. Wiley-IEEE, 2005, ISBN 978-0-471-73661-5 .