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Zeotropic mixtures can be separated by normal distillation.
Sometimes azeotropes are useful in separating zeotropic mixtures.
Benzene and methylbenzene form a zeotropic mixture.
Zeotropic mixtures have the disadvantage that their composition changes during the repeated evaporation and condensation processes.
Vapor pressures and boiling temperatures of a zeotropic mixture are always between the pure component boiling points resp.
Since it is a zeotropic mixture, it has a range of boiling points which may increase the effectiveness of the heat transfer elements in refrigeration equipment.
A zeotropic mixture is a chemical mixture that never has the same vapor phase and liquid phase composition at the vapor-liquid equilibrium state.
Stating compositions of zeotropic mixtures is common for some commercially available blends but the term zeotropic is valid only for a given temperature and pressure, not for specific compositions.
If zeotropic blends are used, it is common to select mixtures with small separation factors (so called near-azeotropic mixtures).
The R-400 series is made up of zeotropic blends (those where the boiling point of constituent compounds differs enough to lead to changes in relative concentration because of fractional distillation) and the R-500 series is made up of so-called azeotropic blends.
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