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Related to azeotropes: boiling point, Azeotropic distillation


 (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 ?
Figure 6a and b displays the results of % equilibrium swelling [39] of nascent PVA and MMMs at 30[degrees]C for 10, 15, and 20 wt% of water--ethanol and water--IPA mixtures as well as their azeotropes (12.
This work has included the study azeotropes (59), gasolines (41), (53), (58), (60), (61), aviation fuels (39), (47), (50), (62-74), diesel fuels (75-85), crude oils (54), (55) and rocket propellants (39), (86-89).
Hydrazines can also form azeotropes with water; for example, hydrazine at the mixture composition 71.
Except for R-436A and R-436B, others are either azeotrope or near-azeotropes.
Nondimensional Thermodynamic Parameters for Twenty Near- Azeotropes that are Potential R-114 Replacements Binary Mixture Mass Reference Source [[tau].
10] aliphatic hydrocarbon mixtures is challenging since these hydrocarbons have boiling points in a close range and several combinations form azeotropes.
The paper described halogen-free azeotropes composed of various aliphatic hydrocarbons, carboxylic-acid esters, ketones, and ethers.
Following this book's step-by-step guidance, readers learn to master tested and proven methods to overcome a major problem in chemical processing: the distillation and separation of azeotropes.
Criteria for the occurrence of azeotropes in such systems have been presented in terms of liquid-phase activity coefficients at infinite dilution ([[gamma].