Relative volatility of water and DMF
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Does anyone know the relative volatility of water and DMF? I am extremely grateful!
Relative volatility: *Conventionally, the ratio of the volatility of the volatile component in a solution to that of the less volatile component is referred to as relative volatility. Denoted by α. The definition of relative volatility α is: α = (yA/yB) / (xA/xB), where yA is the molar fraction of the more volatile component in the gas phase ； yB — mole fraction of the poorly volatile components in the gas phase ； xA — Mole fraction of the volatile components in the liquid phase ； xB — the molar fraction of the poorly volatile components in the liquid phase. It indicates that the molar fraction ratio of the two components in the gas phase is α times the molar fraction ratio of those two components in the liquid phase in equilibrium with it. For more information, see: http://www.chinabaike.com/article/316/478/2007/20070611130689.html
Relative volatility is related to the composition, and there is no specific value; the original poster might want to use simulation software to calculate it.