The basic data of any distillation problem are the equilibrium between the liquid and vapour phases of the system subjected to distillation. Hence is of great importance to study the vapour-liquid equilibrium. The set-up consists of distillation still with a heating element. An electrical Dimmer stat is connected to heating element for varying heat input. The vapours form the top of column are condensed in the shell and tube type condenser by circulating cooling water. The condensate is collected in reflux drum and feedback to column as reflux. A tank with pump is provided to circulate cold water to condenser. Flow rates can be regulated through control valve fitted. Instrumentation is provided to measure the temperatures at different points.

    An ENGLISH instruction manual consisting of experimental procedures, block diagram etc. will be provided along with the Apparatus.
    The whole set-up is well designed and arranged on a rigid structure painted with industrial PU Paint.

Experimentation/Learning Objectives.

•    To determine the vapour Liquid Equilibrium curve for CCl4 and Toluene or any other mixture.
  

Utilities Require.

•    Electricity Supply: Single Phase, 220 V AC, 50 Hz, 5-15 Amp. Combined socket with earth connection. Earth voltage should be less than 5 volts.
  
•    Water Supply.
  
•    Floor Drain.
•    Floor area required: 1.0m x 0.5m
  
•    Refractrometer for Analysis.
•    Required Chemicals.