570.    CLAR.  [Improvement of Synthetic Oils by Means of Sulfuric Acid.]  FIAT Reel K23, frames 2,381-2,391, Aug. 25, 1939; PB 70,214; TOM Reel 290.

      Experiments on the refining of synthetic oils with H2SO4 have no success because of the undesirable side reactions, such as oxidation or formation of tar and esters.  7 tables.