All Questions
Tagged with distillation mixtures
7
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History of Azeotrope (azeotropic mixtures)
I'm currently researching the history of azeotropic mixtures for an essay, and I've come across some interesting information. The term "azeotrope" was coined in 1911 by English chemists John ...
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How does steam distillation work to extract a substance from a mixture, below its boiling point?
This is a small confusion I have regarding steam distillation. Let us consider a sample of water mixed with an organic compound that is insoluble in water. Let us also consider that the boiling point ...
- 439
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Why does adding salt to water help distillation?
I've been looking at instructions on how to get lanolin from fleece and a lot of the instructions mention that adding salt to the water before distillation will increase the lanolin yield. Why is this?...
- 101
19
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Un-denaturing industrial alcohol
I have a question regarding the denaturation of industrial ethanol with methanol to discourage its consumption.
The boiling point of methanol is 64.7 °C, while the boiling point of ethanol is 78.37 °...
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Most efficient way to purify household vinegar: distillation or freezing?
I am aware that there are better ways to purify acetic acid out of a water-acid mixture than these, but which one out of distillation (using heat) and fractional freezing (using cold) would gain a ...
- 1,494
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Fractional Distillation
Why does the long length of the fractionating column in fractional distillation enable more effective separation of two liquids in a mixture?
(basically what's the purpose of the fractionating ...
3
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1
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493
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Freeze distillation: Does efficiency depend on solubility?
I was surprised to learn that freeze distillation has the same inefficiencies as vapor distillation: Namely, that it is impossible to get two miscible fluids to fully separate in one "pass" of ...
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