Azeotrope

Azeotropes are the mixtures of liquids which boil at a constant temperature. Azeotropes may be called constant boiling point mixtures or azeotropic mixtures.[1]

Vapourliquid equilibrium of 2-propanol/water showing azeotropic behaviour

Their proportions cannot be altered by simple distillation.

Types

Azeotropes are classified into two types

  1. Minimum boiling azeotrope
  2. Maximum boiling azeotrope

References

  1. Moore, Walter J. 1962. Physical chemistry. 3rd ed Prentice-Hall, p140–142.
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