Volatility Data on Natural Gasoline and Blended Fuels 290028

THE extension of the equilibrium-air-distillation work of the Bureau of Standards to more volatile fuels, requiring measurements at temperatures considerably below 0 deg. cent. (32 deg. fahr.) has shown that the general relations deduced from the previous work are equally applicable to natural gasoline and to straight-run aviation-fuels and to natural-gasoline motor-fuel blends. Data are presented on three ethylether blends with gasoline which give information on the amounts of ether to be added to gasoline for starting motor-vehicle or airplane engines at various temperatures. For comparison, data on two benzene-blends are reproduced from a previous report. A study of the entire mass of volatility data has indicated certain trends of the temperature ratios with the slope of the A.S.T.M. curve and with temperature. A more accurate correlation of all of the equilibrium- air-distillation (E.A.D.) results will be presented shortly, which will take account of the effect of these variables on the temperature ratios.


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