Solubility diagram of two partially miscible liquids Principle A number of different mixtures of phenol and water are prepared and heated until complete miscibility is achieved. As the mixtures cool, two-phase systems form at certain temperatures which are recognisable by the appearance of turbidity. Plotting separation temperatures against compositions of the mixtures gives the separation curve. Benefits - Good and reproducible results due to temperature control in the experiment.
Tasks - Plot the separation curve of the phenol / water binary system and prepare a temperature / mass fraction diagram.
- Determine the critical separation point.
Learning objectives - Binary system
- Miscibility gap
- Mixed phase
- Coexisting phase
- Raoult's law
- Critical dissolution temperature
Necessary accessories - Precision balance 620g/0.001g
Scope of delivery |
Immersion thermostat Alpha A, 230 V
|
08493-93
|
1
| |
External circulation set for thermostat Alpha A
|
08493-02
|
1
| |
Bath for thermostat, makrolon
|
08487-02
|
1
| |
Rack for 20 test tubes, Makrolon
|
08487-03
|
1
| |
Rubber hose, various diameters
|
39282-00
|
3
| |
Hose clip, diam. 8-16 mm, 1 pc.
|
40996-02
|
4
| |
Burette with straight glass stopcock, 10 ml
|
47152-03
|
1
| |
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
|
7
| |
Beakers, Boro, high form, various sizes
|
46032-00
|
1
| |
Wash bottle, plastic, 500 ml
|
33931-00
|
1
| |
Spoon, special steel
|
33398-00
|
1
| |
Pasteur pipettes, 250 pcs
|
36590-00
|
1
| |
Rubber caps, 10 pcs
|
39275-03
|
1
| |
Laboratory pen, waterproof, black
|
38711-00
|
1
| |
Water, distilled 5 l
|
31246-81
|
1
| |
Tubing connector, ID 6-10mm
|
47516-01
|
2
|
|
Service
