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 (ə-zē′ə-trōp′, ā′zē-)
A liquid mixture of two or more substances that boils at a constant characteristic temperature lower or higher than any of its components and that retains the same composition in the vapor state as in the liquid state.

[a- + Greek zein, to boil; see zeolite + Greek -tropos, turning; see -tropous.]

a′ze·o·trop′ic (ā′zē-ə-trŏp′ĭk, -trō′pĭk) adj.
a′ze·ot′ro·py (-ŏt′rə-pē) n.


(Elements & Compounds) a mixture of liquids that boils at a constant temperature, at a given pressure, without change of composition
[C20: from a-1 + zeo-, from Greek zein to boil + -trope]
azeotropic adj


(əˈzi əˌtroʊp, ˈeɪ zi-)
any liquid mixture having constant minimum and maximum boiling points and distilling off without decomposition and in a fixed ratio.
[1910–15; a-6 + Greek zé(ein) to boil + -o- + -trope]
a•ze•o•trop•ic (ˌeɪ zi əˈtrɒp ɪk, -ˈtroʊ pɪk) adj.


(azeotropic mixtures) A mixture of liquids which boils without a change in composition. When it boils it gives off a vapor whose composition is the same as the liquid.
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References in periodicals archive ?
08% (w/w) based on epoxy resin) was used as catalyst and xylene (5% (w/w) based on reaction mixture) was used as azeotropic solvent.
If azeotropic mixtures were present among major constituents, one would observe regions along the curve in which [T.
Briefly, 4 mL urine was spiked with an isotopically labeled internal standard mixture, then concentrated to dryness using an azeotropic codistillation with aceronitrile or lyophilization.
The behaviour of such refrigerating machine is found to be essentially different from the behaviour of refrigerating machines working by use of pure refrigerants or azeotropic mixtures.
There are two methods for removing water: by applying drying agents or by azeotropic distillation with aniline as an entrainer.
The design includes the capability of vacuum distillation of epichlorohydrin and processing solvents, including azeotropic separation.
Nest, the resulted precipitate was dehydrated by benzene azeotropic distillation," she added, saying, "After calcination, the obtained powder was consisted of approximately uniform nanocrystals.
Azeotropic removal of ethanol during steam desolventization drives the reaction to form the sterically hindered polymeric alkoxysilane.
Xylene (30 ml) was added as the azeotropic solvent.
It can be used to prevent azeotropic solvent swaps ending where they started and to better understand a number of other operations dependent on phase equilibria.
At optimal blend DME mass fractions (35 45) %, corresponding to azeotropic states, refrigerants can be used in good conditions in R application area (-15[degrees]C<[t.