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A mixture of two liquids which has a constant boiling point and composition throughout distillation.
- ‘An azeotrope is a mixture with a constant boiling point that cannot be separated by distillation.’
- ‘Ethyl acetate and ethanol form azeotropes - liquids whose boiling point, and hence composition, does not change as vapour escapes on boiling.’
- ‘Little did these early distillers know that ethyl alcohol and water form a mixture called an azeotrope which cannot be purified past a certain point by traditional distillation methods.’
- ‘The industrial use of azeotropes to distill or purify mixtures of liquids is one of the more important aspects in any distillation process.’
- ‘The principal volatile components of wine tend to form azeotropes of two, three, or more components.’
Early 20th century: from a- ‘without’ + Greek zein to boil + tropos turning.
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