Great video! I'm doing polymer research where the syntheses are ridiculously sensitive to impurities and I needed to salvage my crude monomer because buying more would take too long (I procrastinated). Thank you for saving me an awkward meeting.
It seems as though no one in the comments knows what a vacuum transfer. We essentially do the same process when drying C6D6 for our glove boxs (except we use NaK).
LOVE THE CHANNEL! Would be so cool if you could do a freeze dry a acetone solution into the liquid Nitrogen cold trap! I'm pulling my hair out trying to figure out how to keep the solution in a frozen state while I pump
Just to be clear, this is pretty crude level of materials handling. The evacuation times shown here are very short, there is not the usual 3 fold pump-flush cycling with inert gas, typical of Schlenk manipulations. This might be sufficient for simple syntheses but not for use with highly air sensitive compounds.
I'm not sure how a vacuum still works. I'm guessing a pump sucks the air out. If so, how do you not lose the h2o2. If the water evaporated under vacuum and left the good stuff, then no problem. Do you put some kind of chiller in there to condense the peroxide or what?
The sound quality is'nt very good, which means that one can't hear what you are saying clearly. (Drying over calcium what? 18 seconds) A transcript might have been useful in this case. Otherwise it looked liked it might have been very informative.
+sonic mook But is very good!!!! And it is for free as well....you ned some more?? Abetter lab? bufff, sometimes I dream..... and I can see myself at work in a similar one........doesn´t matter they will improvove it for you ( I dont´t lknow why but in my dream I have 8 arms like an octopus, but better you know,because I also ......Yes!!!! 8 hand Do you want the chemist to be fired?...but she is a beautifull lady, a good chemist and is very nice looking her polite way in the performance of the experiment.
The drying agent was calcium hydride, if you care. You can use other drying agents like anhydrous magnesium sulfate or calcium chloride depending on your solution too.
Cute voice and accent :D I got drunk and broke lots of my glassware and set 1/2 my house on fire inhaled a heap of mercury vapor. Follow this girl not me.
Please consider adding captions or wearing a microphone. I'm sure you wanted to be helpful, but the high background noise made your video unusable. Sorry.
For the first time I see distillation with no condenser in assembly. Just a tubes with vaccuum outlet between evaporating and receiving flask! :)
Great video! I'm doing polymer research where the syntheses are ridiculously sensitive to impurities and I needed to salvage my crude monomer because buying more would take too long (I procrastinated). Thank you for saving me an awkward meeting.
"this video is not a substitute for proper lab training", meanwhile in many labs they just say go and figure it out
Cool, I've never heard about vacuum destillation before I saw a bottle of whisky from a Swedish distillery where they actually use it
It seems as though no one in the comments knows what a vacuum transfer. We essentially do the same process when drying C6D6 for our glove boxs (except we use NaK).
LOVE THE CHANNEL! Would be so cool if you could do a freeze dry a acetone solution into the liquid Nitrogen cold trap! I'm pulling my hair out trying to figure out how to keep the solution in a frozen state while I pump
u have made easiest process to the difficult one
Thanks for posting. You explained it very well.
Just to be clear, this is pretty crude level of materials handling. The evacuation times shown here are very short, there is not the usual 3 fold pump-flush cycling with inert gas, typical of Schlenk manipulations. This might be sufficient for simple syntheses but not for use with highly air sensitive compounds.
well, except she did do three cycles 3:10, just didn't include it in the video. Watch the whole thing so you can give credit where it's due
love the chemistry videos keep them coming great stuff :)
Does it matter if you don't flush the side arm of your solvent bomb with nitrogen before applying vaccume to the receiver?
There is no condensor before the receiver flask.
You don't need one, the room temperature is cold enough to make it condense
Could you also put argon into the system?
Yes. Argon is the better choice but nitrogen is less expensive
On meniute 4 30 what liquid it pour to container?
Boy...there's a lot to keep in mind, when you're doing this.
You are the cutest and prettiest scientist I have ever seen so far ;)
Fuck**g SIMP! 😂 jkjk bro
Why is there no cold trap to protect the vac pump
there is, pause at 10:19 you can see it on the left with the blue diamond-patterned sleeve
Can you show us the operation of the vacuum cold trap ?
+Bill Gates The Schlenk line, you mean?
this would be a great way to distill ammonia hydroxide into stainless
Cool! Do 90% hydrogen peroxide next!
I'm not sure how a vacuum still works. I'm guessing a pump sucks the air out. If so, how do you not lose the h2o2. If the water evaporated under vacuum and left the good stuff, then no problem. Do you put some kind of chiller in there to condense the peroxide or what?
You people are dumb, distilling concentrated hydrogen peroxide is dangerous. Every video ive seen they're worried about it exploding.
What brand of glassware are you using?
sir,
what is use in chemical distillation second flask coldness use.? without condenser ? please reply me.
Hi, she's using liquid nitrogen to cool the receiving flask.
The sound quality is'nt very good, which means that one can't hear what you are saying clearly. (Drying over calcium what? 18 seconds)
A transcript might have been useful in this case.
Otherwise it looked liked it might have been very informative.
+sonic mook
But is very good!!!! And it is for free as well....you ned some more??
Abetter lab? bufff, sometimes I dream..... and I can see myself at work in a similar one........doesn´t matter
they will improvove it for you ( I dont´t lknow why but in my dream I have 8 arms like an octopus, but better you know,because I also ......Yes!!!! 8 hand
Do you want the chemist to be fired?...but she is a beautifull lady, a good chemist and is very nice looking her polite way in the performance of the experiment.
The drying agent was calcium hydride, if you care. You can use other drying agents like anhydrous magnesium sulfate or calcium chloride depending on your solution too.
We told you multiple times... stop using the MS vial dish for water baths
Very helpful, thanks
your fan on the hood is almost overpowering your voice
Nice glasses
What is the black and white stopper called?
clamp the lab jacks
I think smart people are very attractive 😊
SIMP!
I was a scientist in my first life😂
TKS!
pretty lass!
Fuck**g SIMP! 😂
i love you and you brain
Fuck**g SIMP!
😀👍
hot girl with liquid nitrogen is my weakness
Fuck**g SIMP! 😂
Cute voice and accent :D I got drunk and broke lots of my glassware and set 1/2 my house on fire inhaled a heap of mercury vapor. Follow this girl not me.
SIMP! 😂
I'm not in yet 10sen. and the only thing I can think of is how incredibly cute you look
please distill the noise around you first..
Too dangerous the way she does this. Nitrogen??? Why. Chiller or ice water.
Cute
Fuck**g SIMP!😂
.
Yeah, first not indian chemister)
Please consider adding captions or wearing a microphone. I'm sure you wanted to be helpful, but the high background noise made your video unusable. Sorry.
Explanation is not very good. It can be more complex. Sound is not exellent. Noise, pauses in speaking..
your fume hood is making so much racket I can hardly understand you.
I didn't learn anything only have more question
sir,
what is use in chemical distillation second flask coldness use.? without condenser ? please reply me.
Instead of using a condenser, she set the receiving flask in liquid nitrogen (-196° C boiling point so you know it's cold).