Technical data

Miscibility gap in a ternary system

Article no: P3030601

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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, up to 100 °C, 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