CH1012
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15
STEAM DISTILLATION I
Steam Distillation    DGsoln = +ve
Boil water with an immiscible organic liquid.
Agitate (stir) the mixture.
Each liquid behaves independently.
   ptotal = poH2O   + poorganic
ptotal
poH2O
poorganic
1atm
V.P.
T
1) bp. of mixture is less
than bp. of either organic
liquid or water - useful prevents cracking
2) bp. is independent of proportions present
3) Vapour composition ptotal = poH2O + poorganic