copper naphthenate

American  

[naf-thuh-neyt, nap-] / ˈnæf θəˌneɪt, ˈnæp- /

noun

Chemistry.

1. a green salt, soluble in benzene, used as an insecticide and a wood preservative, but harmless to plants.

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Etymology

Origin of copper naphthenate

naphthene + -ate ²

Example Sentences

Use this knowledge to your advantage and routinely apply copper naphthenate solution to any end grain you see.

From Seattle Times

I’d purchase some liquid copper naphthenate and brush it on any of the joists where the rot is less than 5 percent of its overall width.

From Washington Post