 In this way, for example, it is possible to break the water/ethanol azeotrope by dissolving potassium acetate in it and distilling the result.Extractive distillation is similar to azeotropic distillation, except in this case the entrainer is less volatile than any of the azeotrope's constituents.For example, the azeotrope of 20% acetone with 80% chloroform can be broken by adding water and distilling the result.