60 70 80 90 100

are very abnormal and, by properly exploiting these abnormalities and combining distillation and decanting operations, separations can easily be made.

The types of systems in this category range from those which are almost immiscible, such as water and benzene, to those that are miscible except for very limited regions, such as phenol and water. Even though benzene and water are essentially immiscible, distillation is often employed for the purpose of drying benzene. Benzene saturated with water contains a very small percentage of* the latter. By the

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