“…The pulse technique may reduce the effect of space charge so that the measured breakdown strengths are higher than those measured using DC/AC voltages. Three types of experimental data at ambient temperature and pressure were collected to serve as the training sets: (1) the electric strengths for 12 saturated ( n -pentane, n -hexane, n -heptane, n -octane, n -nonane, n -decane, n -tetradecane, 2-methylpentane, 2,2-dimethylbutane, 2,3-dimethylbutane, 2,4-dimethylpentane, 2,2,4-trimethylpentane) and 7 aromatic (benzene, methylbenzene, ethylbenzene, n -propylbenzene, isopropylbenzene, n -butylbenzene, ter-butylbenzene) hydrocarbon liquids measured by applying a single pulse of voltage breakdown with the duration time of 1.65 microseconds to the liquid between hemispherical stainless-steel electrodes spaced 0.051 mm apart [ 18 , 19 , 20 ], (2) the electric strengths for 8 hydro- and fluorocarbon liquids ( n -pentane, perfluoro- n -pentane, n -hexane, perfluoro- n -hexane, methylcyclohexane, perfluoro-methylcyclohexane, dekalin, perfluorodekalin) measured with electrodes spaced with a gap length of 0.15 mm in the uniform field [ 21 ], and (3) the electric strengths for 9 liquids (e.g., alkanes, benzenes, alcohols, CCl 4 ) measured with electrodes spaced with a gap length of 0.2 mm and a pulse duration of 4.5 microseconds [ 22 ]. The experimental E P data, with a total of 36 molecules, are listed in Table S1 in the Supplementary Materials .…”