Lanthanum Stearate

Lanthanum stearate
Names
	Other names Lanthanum(III) stearate; lanthanum(3+) octadecanoate
Identifiers
CAS Number	14741-67-4 ;
3D model (JSmol)	Interactive image;
EC Number	238-806-1;
PubChem CID	129650238;
	InChI InChI=1S/3C18H36O2.La/c31-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h32-17H2,1H3,(H,19,20); Key: YEPVBQTYBRSNRS-UHFFFAOYSA-N;
	SMILES CCCCCCCCCCCCCCCCCC(=O)O.CCCCCCCCCCCCCCCCCC(=O)O.CCCCCCCCCCCCCCCCCC(=O)O.[La];
Properties
Chemical formula	C54H108LaO6
Molar mass	992.3
Appearance	white powder
Density	g/cm3
Solubility in water	insoluble
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Lanthanum stearate is a metal-organic compound, a salt of lanthanum and stearic acid with the chemical formula C₅₄H₁₀₈LaO₆.^[1]^[2] The compound is classified as a metallic soap, i.e. a metal derivative of a fatty acid.

Physical properties

The compound forms a white powder that is soluble in benzene.^[3]

Uses

Lanthanum stearate is mainly used as a nucleating agent for plastics degradation and heat stabilizer for PVC.^[4]^[5]

References

↑ Fang, Long; Song, Yihu; Zhu, Xiaonan; Zheng, Qiang (May 2009). "Influence of lanthanum stearate as a co-stabilizer on stabilization efficiency of calcium/zinc stabilizers to polyvinyl chloride". Polymer Degradation and Stability 94 (5): 845–850. doi:10.1016/j.polymdegradstab.2009.01.024.
↑ Zhang, Yewei; Zhang, Qing; Peng, Yuxing; Wang, Chen; Chang, Xiangdong; Chen, Guoan (5 October 2021). "Preparation and Tribological Properties of Lanthanum Stearate Modified Lubricating Oil for Wire Rope in a Mine Hoist". Materials 14 (19): 5821. doi:10.3390/ma14195821. PMID 34640222. Bibcode: 2021Mate...14.5821Z.
↑ "Stearate" (in en). Romanian Journal of Physics (Editura Academiei Române): 520. 1995. https://books.google.com/books?id=M3iFAAAAIAAJ&q=lanthanum+stearate. Retrieved 3 March 2023.
↑ Guo, Xiaojing; Zhao, Shicheng; Xin, Zhong (September 2009). "Influence of lanthanum stearate on the crystallization behavior of isotactic polypropylene". Asia-Pacific Journal of Chemical Engineering 4 (5): 628–634. doi:10.1002/apj.305.
↑ "Lanthanum Stearate-BEYONDCHEM". beyondchem.com. https://www.https/.

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[1] Fang, Long; Song, Yihu; Zhu, Xiaonan; Zheng, Qiang (May 2009). "Influence of lanthanum stearate as a co-stabilizer on stabilization efficiency of calcium/zinc stabilizers to polyvinyl chloride". Polymer Degradation and Stability 94 (5): 845–850. doi:10.1016/j.polymdegradstab.2009.01.024.

[2] Zhang, Yewei; Zhang, Qing; Peng, Yuxing; Wang, Chen; Chang, Xiangdong; Chen, Guoan (5 October 2021). "Preparation and Tribological Properties of Lanthanum Stearate Modified Lubricating Oil for Wire Rope in a Mine Hoist". Materials 14 (19): 5821. doi:10.3390/ma14195821. PMID 34640222. Bibcode: 2021Mate...14.5821Z.

[3] "Stearate" (in en). Romanian Journal of Physics (Editura Academiei Române): 520. 1995. https://books.google.com/books?id=M3iFAAAAIAAJ&q=lanthanum+stearate. Retrieved 3 March 2023.

[4] Guo, Xiaojing; Zhao, Shicheng; Xin, Zhong (September 2009). "Influence of lanthanum stearate on the crystallization behavior of isotactic polypropylene". Asia-Pacific Journal of Chemical Engineering 4 (5): 628–634. doi:10.1002/apj.305.

[5] "Lanthanum Stearate-BEYONDCHEM". beyondchem.com. https://www.https/.

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