Petrochemical

A petrochemical is any chemical derived from fossil fuel. These include purified fossil fuels such as methane, propane, butane, gasoline, kerosene, diesel fuel, aviation fuel[?], or fuel oil[?], and also include many agricultural chemicals such as pesticides, herbicides and fertilizers, and other items such as plastics, asphalt and synthetic fibers. Also a wide variety of industrial chemicals are petrochemicals.