Hydrodistillation and (original) uses

[hugo_faurand]

Homework Statement

Hello ! I've to do a presentation about hydrodistillation. I've already done an experiment in class to extract essential oil of lavender with hydrodistillation. So, for this presentation I would like to do something original. By original I mean things that you're not used to hearing normally about hydrodistillation.

Homework Equations

For the moment here is my plan for the presentation :
1- What is hydrodistillation ? In this part I'll explain how hydrodistillation works and show at the same time this picture

( I'm french that's why the key is in french, but I have to do the presentation in english. I think I'll show a sketch with the key in english).

2- Where does the hydrodistillation is used ? For this part I don't know what I can say which could be interesting . I know we can also use hydrodistillation for alcohol and perfume but I think my classmates will also talk about that.

3- Conclusion. No idea, maybe say there are other process to extract some substances.

The Attempt at a Solution

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I would like you help me by telling me what can I say, if I should change my plan and if you know some interesting facts about hydrodistillation.

Thanks in advance.
Hugo(P-S- In french we said "hydrodistillation" I don't know if it's the same writing in english or if it's "hydro distillation". Thanks.)

 

[Ferrum]

Maybe you can talk about the historical significance of distillation , compounds needed for medicines has always been a major goal of early chemists and hydro distillation was a premier method for concentration of medicinal compounds .

 

[Merlin3189]

Could you explain why hydrodistillation is used? And the science behind it?
What are the properties of substances, such as essential oils for perfume, that make hydrodistillation useful?

Are there alternative methods used for some of these substances?

Could you use other liquids, such as ethanol, instead of water?

Maybe say something about the broader area of steam distillation.

 

[hugo_faurand]

Thanks you for your ideas. But could you tell me more about azeotrope in hydrodistillation please ?

Thanks in advance.