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Author Question: Explain why it is not possible to recover 100 of the adipic acid from a recrystallization using ... (Read 43 times)

cartlidgeashley

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on: Aug 23, 2018
Explain why it is not possible to recover 100 of the adipic acid from a recrystallization using water.

Question 2

The solubility of salicylic acid in diethyl ether is 1 g/3 mL at 25 C. Is diethyl ether an appropriate solvent to use for recrystallizing salicylic acid? Explain.


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kishoreddi

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Reply #1 on: Aug 23, 2018
Answer to Question 1

The solubility of adipic acid in water at 0 C is 0.3 g/100 mL. Therefore, even after cooling the solution in an ice-water bath, it will not be possible to recover 100 of the adipic acid.

Answer to Question 2

No, it is not an appropriate solvent for recrystallizing salicylic acid. First, the salicylic acid is too soluble in diethyl ether at room temperature. Second, in order to obtain a hot saturated solution, one would have to heat the mixture and, because the boiling point of diethyl ether is low (bp = 35 C), evaporation of the solvent would be a problem. Furthermore, diethyl ether is a flammable solvent and a well-known inhalation anesthetic and should not be used for recrystallizations.


cartlidgeashley

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Reply 2 on: Aug 23, 2018
Thanks for the timely response, appreciate it

smrtceo

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Reply 3 on: Yesterday
:D TYSM

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