Separating Liquids by Distillation

We've got extraction and chromatography down, so let's learn one more separation technique. This one is pretty simple, it separates mixtures of liquids by differences in boiling point, and it's called distillation. If two liquids have very different boiling points, we should be able to heat the mixture up until one boils and the other doesn't, and we can collect the vapor somewhere else, and that's all there is to it. It's quite simple, in fact, but there are some important tips regarding the apparatus, so let's take a look!

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[skittlez]

It's funny how half of the people commenting are kids studying the subject and the other half is adults trying to work out how to make alcohol at home 😂😂

[FueledByKass]

Your channel got me through Orgo in my undergrad days. Now, in my grad school days, I’m watching again so I can properly explain to my students.

[jasminekoala]

My lab instructor made this seem much more complicated than it really is. Thanks to you, I'm no longer nervous about my upcoming experiment

[michaelpisciarino]

0:09 Extraction, Chromatography, and Distillation
0:37 Lower Boiling Point boils out as vapor, Higher Boiling Point remains in the glass.
1:13 The Setup
- A Roundbottom Flask
- A Heat Source
- A Thermometer
- A Condenser
- A Receiving Flask to collect the distillate

 2:35 Distillation tips
3:50 Useful for Separating chemical Compounds
4:34 Fractional Distillation
4:47 Azeotrope (ex. Ethanol and Water)

[JacobInJapan]

I just watched this video for my sophomore-level organic chemistry class. Thank you, Prof. Dave!

[stetsonhendrix]

You could rename your channel "Professor Dave saves your grade in Ochem (or any other subject)" and I don't think anyone would be mad.

[trohnb]

👏🏼👏🏼👏🏼👏🏼very good !!! Using simple distillation, I’ve managed to graph the difference in boiling points between ethanol and water. This video explains why the alcohol distillate was quite diluted.

[danielterry]

You definitely have the teaching gift. Do you have a video distinguishing simple distillation from vacuum distillation?

[akhilgajjala]

Very clear video. Other videos did not really deliver with this much clarity.

[dorissandy]

Well, Dave you're right everything you said and it's more understandable when you do it

[ilovestraykids-ever]

Science test 24 hours later about this, and now I have it well memorized

[saintuk]

I worked, or was around, the Scotch whisky industry for a number of just explained my job :) The stills at Srpingbank and Laphroaig never looked like this ;)

[janvigupta]

You explained so much just in 5 mins
Thank you so much

[TonyStark]

Is no one gonna talk about where his hair went?

[anniegrace]

This is off topic but your hair is amazing!

[misternobody]

You're the best. Thanks sir.
But please make a detailed video on fractional distillation.

[BOTW_Clips]

wow. every video I watch their like: So you want to put this here then explode this then drink this? This was so easy to understand, this made so much sense. Thanks

[ayasamer]

Thanks alot ❤ I understand what I missed in organic lab

[isabel]

Wow, this video is so clear and concise! Thank you

[predrag-peterilich]

Very good, very clear; straight to the point. Good job, Dave (from a chemistry teacher).