Creosote removed; the "heavy oil", which sinks; and the "anthracene oil", which when cold is mostly solid and greasy, of a buttery consistence. Creosote refers to the portion of coal tar which distills as "heavy oil", typically between 230–270 °C, also called "dead oil"; it sinks into water but still is fairly liquid. Carbolic acid is produced in the second fraction of distillation and is often distilled into what is referred to as "carbolic oil". Commercial creosote will contain substances from six groups. The two groups occur in the greatest amounts and are the products of the distillation process—the "tar acids",
This Is Acid This Is Acid "This Is Acid," also known by its full title, "This Is Acid (A New Dance Craze)," is a number one "Billboard" Hot Dance Club Play chart single by Chicago house music DJ and record producer Maurice Joshua, who recorded the track under his first name "Maurice." It reached the top spot in April 1989 and stayed there for two weeks. The song contains spoken lyrics performed by male singer "Hot Hands" Hula Mahone. The lyrics introduce the listener to the Chicago acid house sound. The original 4:56 version—made with only a Roland TR-808 drum machine, Roland TB-303