2.
Two component systems
- binary liquid mixtures
a) Completely miscible - forms 1 phase only
eg. C2H5OH / H2O; benzene /
toluene
b) Immiscible
- forms 2
phases
eg. CHCl3 / H2O; oil / H2O; Hg / H2O
c) Partially miscible
- forms 1 or 2
phases
If one component is in excess ® 1 phase
If comparable amounts of each ® 2 phases
eg. sat. soln. (i) H2O /ether or (ii)
ether/H2O