Solubility diagram of two partially miscible liquids

螢幕截圖 2016-04-05 13.34.47

Item no.: P3030501

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.

Tasks

  1. Plot the separation curve of the phenol / water binary system and prepare a temperature / mass fraction diagram.
  2. Determine the critical separation point.

What you can learn about

  • Binary system
  • Miscibility gap
  • Mixed phase
  • Coexisting phase
  • Raoult’s law
  • Critical dissolution temperature

Necessary accessories

  • Precision balance 620g/0.001g