Miscibility gap in a ternary system  ![]() 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.
Learning objectives - Three component system
- Miscibility gap
- Phase diagram
- Triangular diagram
- Gibb's phase law
Necessary accessories - Chloroform
- Precision balance 620g/0.001g
Scope of delivery |
Immersion thermostat Alpha A, 230 V
|
08493-93
|
1
| |
Bath for thermostat, makrolon
|
08487-02
|
1
| |
Rack for 20 test tubes, Makrolon
|
08487-03
|
1
| |
Burette with straight glass stopcock, 10 ml
|
47152-03
|
2
| |
Burette clamp, roller mount., 2 pl.
|
37720-00
|
1
| |
Retort stand, h = 750 mm
|
37694-00
|
1
| |
Funnels (glass), Boro, various sizes
|
34457-00
|
1
| |
Test tubes,160x16mm, 10pcs
|
36301-03
|
1
| |
Rubber stoppers, without bore, various diameters
|
39254-00
|
15
| |
Rubber stoppers, without bore, various diameters
|
39255-00
|
15
| |
Flat-bottom flask, stopper bed, 250 mlSB 29
|
MAU-SK17083400
|
15
| |
Pasteur pipettes, 250 pcs
|
36590-00
|
1
| |
Rubber caps, 10 pcs
|
39275-03
|
2
| |
Beakers, Boro, high form, various sizes
|
46032-00
|
1
| |
Wash bottle, plastic, 500 ml
|
33931-00
|
1
| |
Laboratory pen, waterproof, black
|
38711-00
|
1
| |
Acetic acid 99...100%, pure 1 l
|
31301-70
|
1
| |
Water, distilled 5 l
|
31246-81
|
1
|
|
Service
