Copper(II) stearate is a metal-organic compound, a salt of copper and stearic acid with the formula Cu(C17H35COO)2. 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.
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:
Synthesis Copper(II) stearate can be prepared by an exchange reaction involving sodium stearate and copper sulfate:
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 and serves as a catalyst for the decomposition of hydroperoxides.
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