Trans fats, often produced by hydrogenating vegetable oils, are known to be harmful to health.
Sulfuric acid derelict been called lustrous of vitriol in Body Oil pre-scientific times, due to its syrupy consistency. Even in modish times, sulfuric acid is sometimes called vitriolic acid, and caustic personalities are called "vitriolic." Sulfuric acid is not a petrochemical, and in modern parlance, is not an oil.
