Chemistry:Strontium stearate
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| C36H70SrO4 | |
| Molar mass | 654.56 |
| Appearance | white powder |
| Density | 1.11 g/cm3 |
| Melting point | 130–140 °C (266–284 °F; 403–413 K) |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Strontium stearate is a metal-organic compound, a salt of strontium and stearic acid with the chemical formula C36H70SrO4.[3] The compound is classified as a metallic soap, i.e. a metal derivative of a fatty acid.[4]
Synthesis
A reaction of strontium hydroxide with stearic acid.[5]
Physical properties
The compound forms white powder. Insoluble in alcohol, soluble (forms gel) in aliphatic and aromatic hydrocarbons.[6]
Uses
Strontium stearate is used in grease and wax compounding.[6][7]
It is also used as a lubricant to improve the flow characteristics of polyolefin resins.[8]
References
- ↑ "CAS 10196-69-7 Strontium stearate - Alfa Chemistry". alfa-chemistry.com. https://www.alfa-chemistry.com/cas_10196-69-7.htm.
- ↑ "Strontium Stearate - CAS No. 10196-69-7 - World Metal, Stafford TX". worldmetalllc.com. https://worldmetalllc.com/strontium-stearate/.
- ↑ "STRONTIUM STEARATE - Optional[FTIR - Spectrum - SpectraBase"]. spectrabase.com. https://spectrabase.com/spectrum/I8TxHV9VM0x.
- ↑ "Stearic acid, strontium salt" (in en). National Institute of Standards and Technology. 17 October 2019. https://webbook.nist.gov/cgi/inchi?ID=B6006292&Mask=80.
- ↑ Schreck, Albert E.; Arundale, Joseph C. (1959) (in en). Strontium: A Materials Survey. U.S. Government Printing Office. p. 27. https://books.google.com/books?id=If6UrWWs_3AC&dq=strontium+stearate&pg=PA27. Retrieved 28 February 2023.
- ↑ 6.0 6.1 Lewis, Robert A. (1 April 2016) (in en). Hawley's Condensed Chemical Dictionary. John Wiley & Sons. p. 1281. ISBN 978-1-119-26784-3. https://books.google.com/books?id=KPrfCwAAQBAJ&dq=strontium+stearate&pg=PA1281. Retrieved 28 February 2023.
- ↑ (in en) Modern Technology of Petroleum, Greases, Lubricants & Petro Chemicals (Lubricating Oils, Cutting Oil, Additives, Refining, Bitumen, Waxes with Process and Formulations) 3rd Revised Edition. NIIR Project Consultancy Services. 3 April 2018. p. 177. ISBN 978-93-81039-61-8. https://books.google.com/books?id=5bp3CwAAQBAJ&dq=strontium+stearate&pg=PA177. Retrieved 28 February 2023.
- ↑ Flick, Ernest W. (22 October 2013) (in en). Plastics Additives, Volume 2. William Andrew. p. 206. ISBN 978-0-8155-1863-1. https://books.google.com/books?id=9pdrUMVdncEC&dq=strontium+stearate&pg=PA206. Retrieved 28 February 2023.
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