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Schlenk Line Techniques and Cannulation Technique

  Рет қаралды 71,570

Chem Leggo

Chem Leggo

Күн бұрын

Пікірлер: 58
@maggo9494
@maggo9494 8 жыл бұрын
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.
@chemfunman
@chemfunman 8 жыл бұрын
I am glad you benefited from it.
@Itsélpi
@Itsélpi 8 жыл бұрын
Your channel is very good! Congratulations!
@chemfunman
@chemfunman 8 жыл бұрын
Gracias for supporting. Share to good news!
@dyap3925
@dyap3925 3 жыл бұрын
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
@chemfunman
@chemfunman 3 жыл бұрын
thank you so much! glad it helped :D please share this video with people who you think will need help
@dunderfuss
@dunderfuss 8 жыл бұрын
I was convinced there was sorcery... but then I felt better... Thanks!
@chemfunman
@chemfunman 8 жыл бұрын
kzfaq.info/get/bejne/jbeEqc9ipqfWnWg.html Good to know! What you have might be found in Orlando. FL. Magic.
@funkyheadZOMG
@funkyheadZOMG 7 жыл бұрын
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?
@chemfunman
@chemfunman 4 жыл бұрын
Thank you, that is right!
@glasslinesmadhes
@glasslinesmadhes 2 жыл бұрын
Superb video for chemistry experiments under nitrogen atmosphere with pressure variation transfer techniques. ❤️👍⭐.
@chemfunman
@chemfunman 2 жыл бұрын
Thank you!
@nurlatifahmohdnor8939
@nurlatifahmohdnor8939 2 жыл бұрын
[Fr. previous pg 22] said. Somehow I managed a weak smile. The next four days were spent exploring the city. Addis Ababa is a sprawling, fairly beautiful city of two million people. At 2400 metres above sea level it is one of the largest inland city of Africa. The word addis ababa (italic) is Amharic, which in English means "New Flower." It was founded by Emperor Menelik II in 1887 and declared the capital of Ethiopia in 1896. [Part of pg 23]
@chemfunman
@chemfunman 2 жыл бұрын
thank you for your support! merci! do subscribe and share our videos with your friends :-)
@sachinpardeshi8977
@sachinpardeshi8977 8 жыл бұрын
Informative video
@chemfunman
@chemfunman 8 жыл бұрын
many thanks
@ifyifemanima3972
@ifyifemanima3972 7 жыл бұрын
Great video!
@emiliakupczyk3670
@emiliakupczyk3670 7 жыл бұрын
thank you :) I will try this today :D
@AFibsTables
@AFibsTables 7 жыл бұрын
Great Video!
@chemfunman
@chemfunman 7 жыл бұрын
thanks! hope you learnt well. enjoy
@steveybingoluia8110
@steveybingoluia8110 8 жыл бұрын
great video!
@chemfunman
@chemfunman 8 жыл бұрын
many thanks for your support ~
@alphastronghold4425
@alphastronghold4425 4 жыл бұрын
Damn, your voice is relaxing bro. Keep up the great work! Great Video! :D
@chemfunman
@chemfunman 4 жыл бұрын
You are cool, man! Thanks loads for your support.
@alphastronghold4425
@alphastronghold4425 4 жыл бұрын
@@chemfunman No probs man!
@zacharysinger5370
@zacharysinger5370 3 жыл бұрын
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.
@chemfunman
@chemfunman 3 жыл бұрын
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?
@zacharysinger5370
@zacharysinger5370 3 жыл бұрын
@@chemfunman - GOTCHA! Still an awesome video with great info!
@chemfunman
@chemfunman 3 жыл бұрын
Zachary Singer love ❤️
@porkodiuse5081
@porkodiuse5081 5 жыл бұрын
Thanking you very much
@chemfunman
@chemfunman 5 жыл бұрын
most welcome!
@malathibalu7467
@malathibalu7467 2 жыл бұрын
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
@SixTough
@SixTough 2 жыл бұрын
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?
@chemfunman
@chemfunman 2 жыл бұрын
How have you been? It has been a while.
@SixTough
@SixTough 2 жыл бұрын
@@chemfunman yes it has :D
@chemfunman
@chemfunman 2 жыл бұрын
Can you quote me the time in the video relating to your question?
@SixTough
@SixTough 2 жыл бұрын
@@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)
@user-td1zr2mc3m
@user-td1zr2mc3m Жыл бұрын
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 ?
@chemfunman
@chemfunman Жыл бұрын
Possible to use a valve, just that here we did not have the equipment yet.
@user-td1zr2mc3m
@user-td1zr2mc3m Жыл бұрын
@@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
@konstantindimov3153
@konstantindimov3153 3 жыл бұрын
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?
@chemfunman
@chemfunman 3 жыл бұрын
Didn’t happen to us! We just hope to keep the interior full of nitrogen to preserve the dry environment
@user-mp4bc9qp2x
@user-mp4bc9qp2x 2 жыл бұрын
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.
@cheesemons
@cheesemons 7 жыл бұрын
cannot reuse the exit needle again for the next reaction?
@xiongyuwu2596
@xiongyuwu2596 2 жыл бұрын
It is better to use a proper condenser for refluxing althought it is just for showing.
@chemfunman
@chemfunman 2 жыл бұрын
both work fine! to each their own
@joelmatthews3453
@joelmatthews3453 4 жыл бұрын
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?
@chemfunman
@chemfunman 4 жыл бұрын
that's what i normally do, dry with acetone too
@henrythierry1778
@henrythierry1778 3 жыл бұрын
Excuse me, could you tell the inert gas purifier you used to reduce oxygen in operating schlenk line
@chemfunman
@chemfunman 3 жыл бұрын
lemme check! it was in an older lab.
@phonixsolomon6275
@phonixsolomon6275 4 жыл бұрын
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?
@nickcoles9246
@nickcoles9246 3 жыл бұрын
Have to assume that has been done prior.
@luyang7033
@luyang7033 7 жыл бұрын
What is the use of liquid nitrogen?
@chemfunman
@chemfunman 7 жыл бұрын
Cool down trace solvents.. remember the Schlenk Line must be moisture-free
@hrenogubkasuperman2228
@hrenogubkasuperman2228 2 жыл бұрын
Защищает вакуумный насос от паров растворителя
@ashleyhuber729
@ashleyhuber729 2 жыл бұрын
How high psi is the nitrogen?
@chemfunman
@chemfunman 2 жыл бұрын
maximum 100 psi to be safe, try go lower
@ashleyhuber729
@ashleyhuber729 2 жыл бұрын
Thank you so so much!
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