| 21. | This implies that the composition of an azeotrope is affected by the pressure chosen at which to boil the mixture.
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| 22. | When the mixture is then boiled, the azeotrope vaporizes leaving a residue composed almost entirely of the excess ethanol.
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| 23. | A more extreme example is the azeotrope of 1.2 % water with 98.8 % diethyl ether.
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| 24. | This happens because when an azeotrope is boiled, the vapour has the same proportions of constituents as the unboiled mixture.
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| 25. | The stepwise progression shows how repeated distillation can never produce a distillate that is richer in constituent X than the azeotrope.
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| 26. | Potassium nitrate and excess sulfuric acid is reacted to produce nitric acid, which can be disilled off as an azeotrope.
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| 27. | As implied by the name, the boiling point of the azeotrope is greater than the boiling point of either pure component.
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| 28. | The term " azeotrope " was coined in 1911 by English chemist John Wade ( 1864 1912 ) and Richard William Merriman.
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| 29. | As alcohol forms an azeotrope with water at this concentration, it is impossible to achieve higher purity alcohol by distillation alone.
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| 30. | In Chemical Engineering terminology, Azeotrope is a mixture of two or more liquids whose proportions cannot be altered by simple distillation.
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