Principle

A number of completely miscible two component mixtures are prepared to investigate the three component acetic acid / chloroform / water system. These mixtures are titrated with the third component until a two phase system is formed which causes turbidity. The phase diagram for the three component system is plotted in a triangular diagram.

Benefits


Good and reproducible results due to temperature control in the experiment.

Stable and safe construction due to solid stand material


Tasks


Titrate nine different acetic acid / chloroform mixtures with water until a two phase system is formed in each case.

Titrate six acetic acid / water mixtures with chloroform until phase separation is observed.

Plot the results of the titrations, expressed as molar fractions, in a triangular diagram.


What you can learn about


Three component system

Miscibility gap

Phase diagram

Triangular diagram

Gibb’s phase law


Necessary accessories


Chloroform

Precision balance 620g/0.001g