Copper(II) stearate
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3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.010.493 |
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| Cu(C17H35COO)2 | |
| Molar mass | 630.48 |
| Appearance | blue-green amorphous substance[1] |
| Density | 1.10 g/cm3 |
| Melting point | 112 °C (234 °F; 385 K)[3] |
| Boiling point | 250 °C (482 °F; 523 K) |
| insoluble[2] | |
| Solubility | insoluble in ethanol, ether[2] soluble in pyridine[2] |
| Hazards | |
| GHS labelling: | |
| Warning | |
| H315, H319, H335 | |
| P261, P280, P305, P338, P351 | |
| Related compounds | |
Related compounds
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Mercury(II) stearate, Cobalt(II) stearate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Copper(II) stearate is a metal-organic compound, a salt of copper and stearic acid with the formula Cu(C17H35COO)2.[4] The compound is classified as a metallic soap, i.e. a metal derivative of a fatty acid.
Properties
The compound is stable and non-reactive under normal conditions.[5]
When trying to ignite, copper stearate first melts and then begins to burn with a green (at the base) flame, then it quickly turns black due to the formation of cupric oxide:
- (C17H35CO2)2 + 5 O2 → CuO↓ + 36 CO2↑ + 35 H2O↑
Synthesis
Copper(II) stearate can be prepared by an exchange reaction involving sodium stearate and copper sulfate:[6]
- CuSO4 + 2 C17H35O2Na → Cu(C17H35O2)2↓ + Na2SO4
Uses
Copper(II) stearate is used in the production of anti-fouling paint and varnish materials.
It is also used as a component in casting bronze sculptures[7] and serves as a catalyst for the decomposition of hydroperoxides.[8]
References
- ^ "MatWeb - The Online Materials Information Resource". matweb.com. Retrieved 13 February 2023.
- ^ a b c Haynes, William M. (9 June 2015). CRC Handbook of Chemistry and Physics, 96th Edition. CRC Press. pp. 4–62. ISBN 978-1-4822-6097-7. Retrieved 13 February 2023.
- ^ Perry, Dale L. (2016-04-19). Handbook of Inorganic Compounds. CRC Press. p. 151. ISBN 978-1-4398-1462-8.
- ^ "Copper(II) stearate". Oakwood Chemical. Retrieved 13 February 2023.
- ^ "SAFETY DATA SHEET" (PDF). chemservice.com. Retrieved 14 February 2023.
- ^ Richardson, H. Wayne (16 January 1997). Handbook of Copper Compounds and Applications. CRC Press. p. 85. ISBN 978-0-8247-8998-5. Retrieved 13 February 2023.
- ^ Scott, David A. (2002). Copper and Bronze in Art: Corrosion, Colorants, Conservation. Getty Publications. p. 293. ISBN 978-0-89236-638-5. Retrieved 13 February 2023.
- ^ Ugo, R. (6 December 2012). Aspects of Homogeneous Catalysis: A Series of Advances. Springer Science & Business Media. p. 85. ISBN 978-94-010-1199-0. Retrieved 13 February 2023.