copper naphthenate

[ naf-thuh-neyt, nap- ]

noun

, Chemistry.

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

Word History and Origins

Origin of copper naphthenate¹

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