This is one of my earlier videos, before I got all of my audio issues worked out. Use the volume knob or headphones! I also have newer recrystallization video on my channel with better audio and animations... check it out!
Hi Bahera! I'm glad you found it helpful. This is one of my first videos ever. I have posted MANY more since! Please take a look at myRUclips channel (ChemSurvival) and consider telling your friends and subscribing!
But how do I know how slowly to decrease the temperature? I mean, I have to put it in the freezer eventually and I'm worried that when I transfer the solvent from a cold water bath to the freezer that there is too much of a temperature gradient for the purist possible product.
Great video! Very easy to understand. I have been curious about FAST cooling of a PURE substance, and can't seem to find any information anywhere... What might be expected to happen? My best guess is that more solvent than usual might get trapped in the lattice structure, but that's as far as I can figure. Could anybody help shed some light on this for me? Or at least point me in the right direction to figure this out myself
+Cody Grant more solvent inclusion - maybe. Smaller, poorly shaped crystals - definitely. The classic inorganic example is glass vs quartz. Rapid cooling of silica gives an amorphous solid with very different properties than one cooled very slowly to get a highly ordered structure.
My pleasure to help! If you are working on recrystallization, you might also want to check out my in-lab demonstration video ruclips.net/video/Q1nKbx05IbM/видео.html
+Tittoo Mal At the end of the process, the system cools, so overall, no it is not an endothermic process. what's more important is that it is endergonic overall, meaning that free energy of the system is lower in the final state than the initial. This is why slow cooling is best, because we want thermodynamics in control of the crystallization.
No the scheme is exothermic. Overall heat is released from the system into the universe. The reaction is *exergonic*. Products free energy < starting materials free energy. I.e week bonds are being broken and stronger bonds being formed. The reverse reaction would be endothermic I.e endergonic.
The impurity stays in the mother liqour,, the solution above the recrystallized material. That is usually removed by filtration which leaves behind only the purified solid
Extremely helpful, I was struggling with this concept before watching this. Thanks
Excellent vid, I finally understand the principles of recrystallization properly!
Excellent job sir....it is of great help for researchers...... thank you so much sir
Great work explaining this! Thanks heaps!
Thank you for all the videos!
This is made very simple!
Another GREAT video ! thanks!
This is 10 year late but this explanation was fantastic. Thank you!
It's never too late to receive a compliment like that! Thanks for watching the channel!
This is one of my earlier videos, before I got all of my audio issues worked out. Use the volume knob or headphones! I also have newer recrystallization video on my channel with better audio and animations... check it out!
THANKS SO MUCH FOR YOUR SIMPLE USEFUL EXPLAINING
Great Video, Thank You!
could anyone please tell me how these video tutorials can be made? I mean which software is used to make these video tutorials?
Good job and thanks for your work
Hi Bahera! I'm glad you found it helpful. This is one of my first videos ever. I have posted MANY more since! Please take a look at myRUclips channel (ChemSurvival) and consider telling your friends and subscribing!
THANK YOU A MILLION!!!!!!!!! :)))))
awesome video! helped a lot!
But how do I know how slowly to decrease the temperature? I mean, I have to put it in the freezer eventually and I'm worried that when I transfer the solvent from a cold water bath to the freezer that there is too much of a temperature gradient for the purist possible product.
Thank you!
awesome animation, it helped a lot
THANKSSSS you made this simple:)
Omg amazing thank u !!
Very good.
Ty I now understand this better
Thank you once again
thanks so much!!
so after the impurities get separated from the pure substance do we have to do some sort of filtration or separation to get a 100% pure substance
Yes. Typically vacuum filtration.
Thank you🌈
Thanks 💕
Great video! Very easy to understand.
I have been curious about FAST cooling of a PURE substance, and can't seem to find any information anywhere... What might be expected to happen?
My best guess is that more solvent than usual might get trapped in the lattice structure, but that's as far as I can figure. Could anybody help shed some light on this for me? Or at least point me in the right direction to figure this out myself
+Cody Grant more solvent inclusion - maybe. Smaller, poorly shaped crystals - definitely. The classic inorganic example is glass vs quartz. Rapid cooling of silica gives an amorphous solid with very different properties than one cooled very slowly to get a highly ordered structure.
Thank you so much
My pleasure to help! If you are working on recrystallization, you might also want to check out my in-lab demonstration video ruclips.net/video/Q1nKbx05IbM/видео.html
What causes recrystallization? In energy
now I understand thanks
Check out my newer video on this topic!
Melting Point Depression Explained
My pleasure. I hope they help! There are many more in development. Please subscribe and come back often to see what is new!
ChemSurvival
Would this be considered as endothermic (since heat is being added)?
+Tittoo Mal At the end of the process, the system cools, so overall, no it is not an endothermic process. what's more important is that it is endergonic overall, meaning that free energy of the system is lower in the final state than the initial. This is why slow cooling is best, because we want thermodynamics in control of the crystallization.
No the scheme is exothermic. Overall heat is released from the system into the universe. The reaction is *exergonic*. Products free energy < starting materials free energy. I.e week bonds are being broken and stronger bonds being formed. The reverse reaction would be endothermic I.e endergonic.
so, what precipitates out of solution?
Ivan Duck the solute
very nice
Now I can make my meth, thank you!
yeee!
My bbfs names er
breaking bad style
Audio is too low
chemistry made easy hear
is this called simple distillation?
No. But you can view my short video on simple distillation here: ruclips.net/video/T4eIc_v-SrI/видео.htmlsi=L-yLbxljLcAmgXaR
That's orange homie
I like science and
My question is, where does the impurity go to?
The impurity stays in the mother liqour,, the solution above the recrystallized material. That is usually removed by filtration which leaves behind only the purified solid
@@ChemSurvival Wow thank you so much.. I was a bit confused there💯
speak up!
'MURCA PHUWC YEAH
to bad i can't hear it.