Azeotropic mixture
McGraw-Hill Science & Technology Dictionary:
Top
azeotropic mixture
(¦a′zē·ə¦träp·ik ′miks·chər)
(chemistry) A solution of two or more liquids, the composition of which does not change upon distillation. Also known as azeotrope.
McGraw-Hill Science & Technology Encyclopedia:
Top
Azeotropic mixture
A solution of two or more liquids, the composition of which does not change upon distillation. The composition of the liquid phase at the boiling point is identical to that of the vapor in equilibrium with it, and such mixtures or azeotropes form constant-boiling solutions. The exact composition of the azeotrope changes if the boiling point is altered by a change in the external pressure. A solution of two components which form an azeotrope may be separated by distillation into one pure component and the azeotrope, but not into two pure components. See also Distillation; Solution.
Wiley Dictionary of Flavors:
Top
Azeotrope
A mixture of two volatile substances, which when combined, evaporate usually at a different temperature than either of the two would evaporate singly. This occurs until conditions are changed (like pressure) or until one of the ingredients is used up. Azeotroping of two volatile flavoring materials could at least partially explain the concept of the masking effect of flavoring materials. It explains why a simple distillation of fermented ethyl alcohol will yield a 95% (190 proof) mixture with water. See Distillation.
Post a question - any question - to the WikiAnswers community:
Copyrights:
McGraw-Hill Science & Technology Dictionary
McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved.
Read more
McGraw-Hill Science & Technology Encyclopedia
McGraw-Hill Encyclopedia of Science and Technology. Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved.
Read more
Mentioned in
component distillation
(chemical engineering)
Salt-effect distillation
(chemical engineering)
Solution
(physical chemistry)
Industrial wastewater treatment
(civil engineering & architecture)
Ethyl alcohol
(organic chemistry)
» More