Zoology

Essay specific features

 

Issue:

Science

 

Written by:

Edward W

 

Date added:

February 23, 2017

 

Level:

University

 

Grade:

A

 

No of pages / words:

3 / 635

 

Was viewed:

2191 times

 

Rating of current essay:

 
Essay content:

When lime is mixed with the water in ethanol, calcium hydroxide forms. The calcium hydroxide can then be separated from the ethanol. Similarly, a hygroscopic material will dissolve some of the water content of the ethanol as it passes through, leaving a purer alcohol.[1] [edit] Addition of an entrainer The ethanol-water azeotrope can be broken by the addition of a small quantity of benzene or cyclohexane...
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Benzene, ethanol, and water form a ternary azeotrope with a boiling point of 64.9 °C. Since this azeotrope is more volatile than the ethanol-water azeotrope, it can be fractionally distilled out of the ethanol-water mixture, extracting essentially all of the water in the process. The bottoms from such a distillation is anhydrous ethanol, with several parts per million residual benzene...
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