Via chemic technique calculate, we get the average molecular weight and saturation vaportension, thereby, we calculate the volatility.
通过化学工艺计算，得到了各馏分的平均分子量和饱和蒸汽压，进而求出其挥发度。
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The RTILs is the perfect substitute of conventional solvents owing to its highly conductivity, wide electrochemical widow, neglectable vaportension and special solubility.