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September 29, 2025, 11:50:57 pm
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Author Topic: Aspirin  (Read 1059 times)  Share 

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danielf

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Aspirin
« on: May 04, 2008, 01:22:05 pm »
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Does anybody know the systematic names for the following:
> Aspirin (acetylsalicylic acid)
> Salicylic Acid
> Ethanoic Anhydride
(Or, are the above names the systematic names ???)
Also, could somebody please clarify the phenomena related to fractional distillation?
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Mao

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Re: Aspirin
« Reply #1 on: May 04, 2008, 01:29:30 pm »
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wikipedia:

Aspirin: 2-(acetyloxy)benzoic acid

Salicylic acid: 2-Hydroxybenzoic acid

Ethanoic Anhydride: Ethanoyl ethanoate

(but we dont need to know these i dont think)


as for fractional distillation, what do you need to know?
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danielf

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Re: Aspirin
« Reply #2 on: May 05, 2008, 04:29:23 pm »
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The book says as follows:
"Fractional Distillation relies on the phenomenon that the concentration of a high-boiling point liquid is higher in a vapour over a mixture of liquids than it is in the liquid"
I understand what the quote means but I have no idea how Fractional distillation relies on it.
Thanks for the help on the Aspirin
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Mao

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Re: Aspirin
« Reply #3 on: May 05, 2008, 06:20:46 pm »
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mmm, i didnt know that is true...

I thought fractional distillation follows the principle that higher boiling point condenses first when cooled?
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