Copper(II) stearate is a metal-organic compound, a salt of copper and stearic acid with the formula Cu(C17H35COO)2.[2][3] The compound is classified as a metallic soap, i.e. a metal derivative of a fatty acid.

Synthesis

Exchange reaction of sodium stearate and copper sulfate:[4][5]

Physical properties

Copper(II) stearate forms a blue-green amorphous substance[6] similar to plasticine both in appearance and touch.

Insoluble in water, ethanol, or ether; soluble in pyridine.[7]

Chemical properties

The compound is stable and non-reactive under normal conditions.[8]

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:

Uses

The compound is used in the production of antifouling paint and varnish materials.

Also used as a component in casting bronze sculptures.[9]

Also applies as a catalyst for the decomposition of hydroperoxides.[10]

References

  1. ^ "CAS 660-60-6 Copper(ii)stearate - Alfa Chemistry". alfa-chemistry.com. Retrieved 13 February 2023.
  2. ^ "Copper(II) stearate". Oakwood Chemical. Retrieved 13 February 2023.
  3. ^ "Copper(II) Stearate". American Elements. Retrieved 13 February 2023.
  4. ^ 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.
  5. ^ "Cupric stearate | 660-60-6". ChemicalBook. Retrieved 13 February 2023.
  6. ^ "MatWeb - The Online Materials Information Resource". matweb.com. Retrieved 13 February 2023.
  7. ^ 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.
  8. ^ "SAFETY DATA SHEET" (PDF). chemservice.com. Retrieved 14 February 2023.
  9. ^ 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.
  10. ^ 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.
Allikas: https://en.wikipedia.org/wiki/Copper(II)_stearate
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