Recrystallization

Now that we have covered a variety of separation techniques, we know how to get an isolated product! But if it's a solid, it may contain impurities. Recrystallization is a common organic chemistry laboratory technique for the purification of solids, so let's learn how to do it!

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[danielh.]

Thank you very much for the video, I'm using this method in my organic chemistry lab. but most explanations went much more in depth than I needed and I had harder time understanding how this process worked than was necessary. This helped me quite a bit.

[ingridfellows]

Thanks! Engaging videos for my college lab students since we are virtual.

[prescillaromero]

Thank you! That was so informative and straight to the point

[himanshirohilla-urwn]

thankyou so much for such a nice explanation as I m preparing for my practicals so it helped me a lot

[petika]

Thanks for video. Very helpful before my practical exam, so to remind me how it all works. Thanks a lot.

[angeldiaz]

And that’s how you cook crack Ladies and gentlemen !

[chrisgunter]

This was useful for quickly remembering how to do something I learned how to do last semester.

[zezaomachado]

Nice matther. But I am looking for something such similar but at the organic field. Precisely to try and polite the crystals of my eyes cataract disease than to submit to implant artificial lens surgery.

[NellvinCervantes-gtot]

Then what will happen to the seed crystal when it is applied after filtration. Seed crystal lowers potential energy barrier to nucleation to happen that creates template to be absorbed by atoms, ions or molecules to form an arrangement as of crystals. This seems that the purified crystal after crystallization and seed crystal are bonded together after filtration. So it seems the 'purified' crystal isn't totally purified as it has seed crystals mixed in it. 🤔

[tylerkutschbach]

What day this month will you do Woodrow Wilson

[CaseyFinSF]

the Meth Episode.... was wondering when you'd get around to this🤫😳🤯

[WalkinWhiskey]

THANK YOU, MAN, my manuals are mystery novels. I always wanted to know why dissolve at high temp but not at low temp, so what i got from this is that at low temperature, the solid is supposed to crystalize, and at high temperature it's supposed to dissolve. And that the impurities should dissolve at room temp so they stay dissolved and don't precipitate. Am i wrong?

[tejas]

Can u pls tell me how to separate the small qty of compound in mother liqour which didnt form crystals but was supposed to??

[chair]

If the impurities are able to interrupt the lattice structure during the original precipitation, why aren't they also able to during the second step

[lorriecarrel]

I like watching your vids, you are very intelligent

[xOxAdnanxOx]

the choice of the solvent will be based more on the identity of the impurities? So they will not recrystallize again with the pure solid?thank you

[santicruz]

What happens if you cool it down too quickly?

[gyoseph]

CHEM 2511 (Organic) online lab tomorrow yessir 😁

[Mr.absalom]

You should explain the content by giving examples 🤦🏽‍♂️ of the solute and solvent

[luxintelligentia]

If i had a pill or other form of some medicine, can i crystalize it like this or is anything going to crystallize?