662. ---------------.[DANNEFELSER, W.] [Notes on the Examination of Synthetic Benzine.] Oel u. Kohle Erdoel Teer, vol. 39, 1943, pp. 903-910; Chem. Zentralb., 1944, I, p. 199; Chem. Abs., vol. 38, 1944, p. 6066.

662. ---------------. [DANNEFELSER, W.] [Notes on the Examination of Synthetic Benzine.] Oel u. Kohle Erdoel Teer, vol. 39, 1943, pp. 903-910; Chem. Zentralb., 1944, I, p. 199; Chem. Abs., vol. 38, 1944, p. 6066.

Evaporation losses in synthetic benzine amounting to a loss of weight of 2% and a reduction in the Reid pressure of 0.04, caused a fall in octane number. Peroxide formation during storage from the effect of daylight or ultraviolet rays also affected the octane number considerably. The tendency of different synthetic benzines to form peroxide varies. Other factors than the above 2 mentioned also caused changes in the octane number, but the author was unable to determine them.