Butadiene is a very reactive, colorless and flammable gas with an aromatic odor. The production of butadiene started in the years prior to the World War II and experienced a rapid rise, butadiene being obtained from grain alcohol. Today, butadiene is an important chemical being used in the production of synthetic rubber. In USA it ranks 36th in the most produced chemical with an annual production of three billion pounds. It is also used in small amounts to produce plastics and fuel. The average price of Butadiene is 97 cents/lb.