oil-borne preservative
An organic chemical dissolve din a petroleum oil carrier, as pentachlorophenol or copper naphthenate, used as a wood preservative. Pentacholorophenol, the most commonly used oil-borne preservative, has a persistent odor, is insolube in water, and is highly toxic not only to fungi and insects but also to humans and plants. (Ching, 1995)
