Distillates (petroleum), acid-treated middle

Distillates (petroleum), acid-treated middle is a complex combination of hydrocarbons obtained as a raffinate from a sulfuric acid treating process. It consists of hydrocarbons having carbon numbers predominantly in the range of C11 through C20 and boiling in the range of approximately 205.degree.C to 345.degree.C (401.degree.F to 653.degree.F).