Schlenk Line Techniques and Cannulation Technique
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- čas přidán 10. 07. 2024
- Guide to using the #Schlenk Line in the Chemistry Lab
How to operate #cannulation?
I will demonstrate how to use a Schlenk line in the chemistry lab.
Schlenk lines ensure the safe and convenient usage of air- and moisture-sensitive compounds.
pubs.acs.org/doi/10.1021/acs....
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Schlenk Line
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perfect explanation. Saved my ass. I need to perform the whole Schlenk line task tomorrow and until now i had no idea what to do. but now im feeling confident that im able to perform the task. thanks.
I am glad you benefited from it.
thank you :) I will try this today :D
Great video!
Great content. I'm taking my advanced inorganic chemistry lab this semester and having to come back from online learning to in person have made my lab skills weak. Thanks so much for the videos. They help a lot
thank you so much! glad it helped :D please share this video with people who you think will need help
Your channel is very good! Congratulations!
Gracias for supporting. Share to good news!
Nice vid but after the dry solvent has been added surely you should've turned the N2 tap back on for the RXN mix as your vent needle is allowing air in?
Thank you, that is right!
Superb video for chemistry experiments under nitrogen atmosphere with pressure variation transfer techniques. ❤️👍⭐.
Thank you!
Damn, your voice is relaxing bro.
Keep up the great work! Great Video! :D
You are cool, man! Thanks loads for your support.
@@chemfunman No probs man!
I was convinced there was sorcery... but then I felt better... Thanks!
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Thanking you very much
most welcome!
Informative video
many thanks
Great Video!
thanks! hope you learnt well. enjoy
great video!
many thanks for your support ~
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sir, kindly tell me, how to convert formaldehyde 37% solution liquid phase to gases phase, what types of container chamber can use in this work
cannot reuse the exit needle again for the next reaction?
Hi, do I have to dry my cannula in the 100 C drying oven immediately before use to prevent introducing any moisture to my dry solvent?
that's what i normally do, dry with acetone too
GREAT video.....one question: 15:32 you say always make sure the oil level is below the rxn. mixture.........I would disagree with this, as I was taught this could lead to hot spots...I always allow it to come to exactly the same level.
that is why we need a stirring bar to mix the heat more homogenously. Without stirring, the level of oil bath does not predispose the RBF to possess hotspots. better?
@@chemfunman - GOTCHA! Still an awesome video with great info!
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Excuse me, could you tell the inert gas purifier you used to reduce oxygen in operating schlenk line
lemme check! it was in an older lab.
Why did you leave the N2 flowing towards the condenser and the flask after removing the exit needle? Won't that cause overpressure and blow off the septum?
Didn’t happen to us! We just hope to keep the interior full of nitrogen to preserve the dry environment
this is good practice. the excess nitrogen just leaves through the oil bubbler. its good to leave on in case any holes are in the apparatus.
Why do you do not use a over pressure valve ? Do you do not need it, because do you work just under normal pressure 1013,25 mbar ?
Possible to use a valve, just that here we did not have the equipment yet.
@@chemfunman interesting, I try to understand the function of the over pressure valve after STUTZ.
Is not that easy to finde this kind of information, how to install and how to use this kind of over pressure valve.
Maybe you have once time and could make a video how to install a valve after STUTZ at a schlenkline
Why do you only make sure you suck the posible oxigen from one black tube but not the one may be contained in the little flask or the one in the other black tube as well as the reflux column?
Have to assume that has been done prior.
It is better to use a proper condenser for refluxing althought it is just for showing.
both work fine! to each their own
What is the use of liquid nitrogen?
Cool down trace solvents.. remember the Schlenk Line must be moisture-free
Защищает вакуумный насос от паров растворителя
Good instruction but I don't understand the purpose of this. Looks like a compicated way to pour in your solvent, you can just flow N2 and use a sep funnel or am I wrong?
How have you been? It has been a while.
@@chemfunman yes it has :D
Can you quote me the time in the video relating to your question?
@@chemfunman at say 9:20 you can just pour the anhydrous solvent into a sep funnel and drip it from the top of the condesner under N2 flow or in a nitrogen box. I don't understand what problem is the Schlenk line solving (I'm not a chemist)
How high psi is the nitrogen?
maximum 100 psi to be safe, try go lower
Thank you so so much!