Creosote Oil LCO Coal Tar Creosote has dark brown color and it is accessible in liquid form. This substance is classified under carbonaceous chemicals that are obtained by distillation of different types of tars. It is also derived from plant based materials like fossil fuel and wood. It is mainly used as antiseptic and preservative. Approximately 980 degree C temperature is needed to obtain tar from oil through distillation process. Density of this tar ranges between 0.98 to 1.1. The amount of tar in this liquid has maximum 18% tar. Long shelf life, accurate formulation and reasonable price are the key aspects of this liquid chemical.