Chemistry Teaching Labs - University of York

Пікірлер

@bobanristic9047 Ай бұрын

💚💚💚💗💓💛🧡

@bobanristic9047 Ай бұрын

💚💚💚💗💓💛🧡

@bobanristic9047 Ай бұрын

🧡🧡🧡🧡🧡🧡

@pascalchang2333 Ай бұрын

what is the small rock thing in the lagged bowl? and how to get this kind of "lagged bowl"?

@ChemTL Ай бұрын

The small rock material is called Vermiculite. We make the lagged bowls by using two Pyrex Basins of different sizes, filling the gap with vermiculite then sealing it in with some tubing.

@pascalchang2333 Ай бұрын

@@ChemTL Is the function for the lagged bowl to prevent the temperature of the bath quickly balance with ambient temperature? and is the tubing sealing necessary?

@DylanKingDNK 2 ай бұрын

Insane that they use a Luer *SLIP* syringe instead of Luer Lock syringe. Apply a little too much force when you bend the needle in the U shape and you could pop the needle out and expose it to air. Nice way to make a flame thrower!

@maxhill1775 21 күн бұрын

Whilst i fully agree luer lock is definitely safer, imo a dry well connected slip tip isn't too crazy if you know the liquid to draw isn't super viscous and make sure that the joint is supported/clamped together with a hand during the inversion and expulsion. The latter was very heavily stressed/drilled into me when I was there. Sometimes getting the smaller volume disposables in luer lock can be trickier, and I assume they used this as a demonstration to cover all bases and teach good technique should someone only have a slip tip available. I also think it might be n-BuLi in the video; for sure I wouldn't personally be going near tert-BuLi with a slip tip. Also agree that adding a protective layer of inert gas would be better.

@REDOXorg 3 ай бұрын

how much

@REDOXorg 3 ай бұрын

this hot plate is my dream

@MrItsthething 3 ай бұрын

That is WAY too much grease.

@naderabyad1722 4 ай бұрын

I think this chemical is not made for our atmosphere.

@sarayivo8240 6 ай бұрын

What will happen if we changed the water in and out ?! Also is that one of reflux setup to plug it from top or this is one of reflux mistakes?

@nazmulislam6300 6 ай бұрын

Which calcium cloride use here?

@nazmulislam6300 6 ай бұрын

Tnz❤️❤️❤️

@saturnslastring 8 ай бұрын

What are the concentrations of the acids used?

@JessieAllen-r6m 8 ай бұрын

Thank you so much for this clear demonstration.

@deadacc747 Жыл бұрын

who in the flip is trying to made cid

@nhdarzwn Жыл бұрын

Interesting

@mnmlibra6025 Жыл бұрын

Could you please tell how do I change the color of spectrum to black.. It takes spectrum of Grey color and I have to change the color each time

@SaurabhKumar-wo7bk Жыл бұрын

Nice👍

@M_SWMKWR4927 2 жыл бұрын

Dear sir can you tell how to decrease that red integration line

@kudzem 2 жыл бұрын

Ah the 4-4-4 fire diamond tBuLi : The man, the myth, the legend

@antaresb8154 2 жыл бұрын

How do you clean this?

@hlalanathimbimbi2527 2 жыл бұрын

I am trying to run an experiment under reflux in an N2 environment while heating.... Is this how one would set up such an environment

@liying1994 2 жыл бұрын

What's that oil bubbler called?

@liying1994 2 жыл бұрын

Hi How can I do a reaction at room temperature (not reflux) under nitrogen atmosphere if I do not have a schlenk line?

@ritabrataganguly8584 2 жыл бұрын

use a nitrogen balloon

@infinitesolutions2602 2 жыл бұрын

Alhamdulillah

@infinitesolutions2602 2 жыл бұрын

Alhamdulillah

@السيدةرواءعبدالعليم 2 жыл бұрын

hi, can you help me please How can I use the synchronous spectrum in this instrument.

@justkev1044 3 жыл бұрын

press f for sample

@ezekielmartinez402 3 жыл бұрын

please step by step for example about cord to computer what application to use. im not understand..

@eriks4175 3 жыл бұрын

I haven't used one of these instruments in many years, so this video was extremely helpful. Thank you!

@rafiyasultana1983 3 жыл бұрын

Very clearly described

@OmarA.Sulaiman 3 жыл бұрын

هية مال عقاقير إلنا الله 2021/6/29

@CaesarCapone 3 жыл бұрын

I seem to remember using methylene chloride to clean the disks. Could that be right?

@ontariobuds 3 жыл бұрын

Hey, maybe you can come to my house to convert codeine into morphine and morphine into diacetylmorphine. It doesn’t have to be a yes right this second, I’ll settle for a maybe. All I ask is you just think about it. 😏

@SamSam-br1bs 3 жыл бұрын

Que est le le rôle de MgSO4?

@anamendoza6741 3 жыл бұрын

Sorry, don't speak portuguese. But the role is that, if you use anhydrous MgSO4, it will remove the water particles that may still be present in your organic solution (thus "drying" it). It's drying ability is high and its rate is fast, so its aplicability is for all general purposes. Other drying agents like calcium chloride only work on hydrocarbons and halogenated compounds.

@SamSam-br1bs 3 жыл бұрын

@@anamendoza6741 thank's 😘