Organic Chemistry Lab Demo: Extractions (part 1)

[shleymerm89]

Thank you so much! I feel much more confident for my upcoming organic chem lab!

[whathwat]

is that nick swardson?

[smartchick104]

OMG you have no idea how much help your videos are to prepare for my organic chem labs. Holy shit thank you so much YOU ARE SO AWESOME. <33333333333333333333333333 meow!

[GunzNDeath]

Your soooo awesome. Much love

[1787dude]

4 people flunked chemistry

[qwoeiu]

Who's here cuz ur studying for ochem practical from UC Irvine? thumbs up! zotzot!!

[302198]

drugs



[Lagoona248]

you are the reason i pass <3

[psychokillerburgers]

mmmmm......gently swirl the solution/hand job

[X3lfl3X]

yeah pretty awesome video and great speaking voice as well.

[Mshaneena]

thank you sooo much , your videos are really helpful :) amazing

keep it up guys

[ericlndbrg]

why is he using a different organic solvent (dichloromethane) for the second extraction? Couldn't he have used ethyl acetate again?

[ayumi149]

One of the very worthwhile 7.32 mins of my life :)

Very much appreciated. Thank you!

[HubertHoratio]

Christ the lab coat nazis come out of the woodwork on this guy's videos

[riemamarie]

Why are you not wearing your lab gown? That is SOP in the lab!

Joke:-)

Nice demo:-)

[riemamarie]

Why are you not wearing your lab gown? That is SOP in the lab!

Joke:-)

Nice demmo:-)

[moballer12]

Nice!!! I found this video and recrystallization video very helpful! Thanks

[covertgreen]

are you on drugs? jeez

[edisonmichael1]

As we have to release the pressure from the separatory funnel while extracting it is safe to do in a fume hood .

Anybody can tell me why should we acidify the liquids while extracting ?

[Aesonseth]

dmt

[cruisersmusic]

Extract some DMT from mimosa hostilis or acacia bark powder and show the purification process and smokable yield please.

[voyager2020]

very very very good keep going.......

[dervishmadwhirler]

Shouldnt you basify the solution first? before adding the ethylacetate? It makes the alkaloids separate easier...or is that not necessary for all alkaloids?

[doufeel]

I'm sorry but can someone explain what exactly happened here?

Did he just mix the two solutions together and then make them back into what they were before or was the dark solution just caffein at the end or what??

[aza1987f]

At the start, the dark solution (aqueous layer) contained the caffeine with all the unwanted material. At the end the separation, the caffeine had been extracted from the dark solution (aqueous layer), into the clear solution (organic layer). Therefore making the caffeine alot easier to extract straight from the organic layer without all the rubbish in it from the aqueous later (dark solution)

[HANSA944]

This is really a nice demonstration and information. However you notice a bad habit of the experimentator, he always touches his glasses which is quite a bad habit, since this might bring dangerous chemicals from his gloves to his face.

[waglik666]

Yes, first thing I've noticed

[dreamweaver27]

amazing dude!

[Nguli34689]

Chemistry was my hobby since I was eight years old. This was 46 years ago. I learned photography and in those days you had to have a developer, stop, and fixer. This involved chemistry. Also, I became interested in pyrotechnics. If you are going to be involved in constructing fireworks, you MUST know something about chemistry. After all, it only takes two molecules to start a spontaneous combustion. Follow this tutor's lead: ALWAYS WEAR SAFETY GOGGLES! Read and understand your MSDS too.

[MattyMatt761]

Protip for new Ochem students:

If you get confused or forget which is the aqueous layer and which is the organic layer, take a small drop of water and drop it into the sep. funnel. If the organic layer is on top, the drop of water will zip right on through down to the aqueous layer.

[dungeonbrownies]

thanks for the tip =D

[MattyMatt761]

no problem. i have a few other tips but that is one of the most useful tips i have when doing extractions, i use it all the time cuz always forget which layer is which- good luck in your studies!

[aza1987f]

thanks for the great tip

[rofl082193]

hmm.. could mineral spirits (100%) be used as a solvent for this?

[Moughenda]

do you have a contact number or a e-mail?,i would like to talk to you.

[EzraKile]

i can't understand what is the first solvent...what it is?

[EzraKile]

Ethyl acetate...ok perfect... ^^

[Nythzor]

IM going to make so much DMT now.

[nignogss]

lulz

[minaclaveros]

u can make zooms, and make part by part explained, i dont see your glass elements in dtail, and u look nervous, men!!

[pgzero78]

I'm taking O-Chem and this helped me out during the lab. Thank you so very much

[aokka]

in the wrong hands these lessons are tutorials to meth cookers

[proffnga]

So what!

Im sick of hearing about drugs

not everyone makes drugs and all knowledge to the masses

[jayospina]

so why are you watching this video?

[proffnga]

Because it is interesting and I love chemistry.

[jayospina]

you are very paranoid. Meth cookers will find their ways even without this video. Dont be an ignoramous. Druggies have their ways... even in the 60's, when internet didnt exist, they found ways to create hallucinogens... so dont blame it on this video... blame it on people that are addicted.

[tomazco]

well i'm certainly not interested in the chemistry....

and this lesson is more helpful for the extraction of alkaloids (lsa, dmt etc)

[msohn88]

Your videos make me prepare for my Organic Chemistry labs, thank you so much! :)

[dschager]

Invaluable series of videos in helping me to understand the basics. Thank you.

[SORRYFORTHEREVIEW]

probably shouldnt handle dichloromethane with that shirt.

[scivislab]

Believe me, we did try a lab coat, but the studio lights were so intense that our instructor shone like a fluorescent bulb, ruining the whole frame. We tried *three* different shirts until we decided to go with this very unprofessional-looking shirt, which worked the best with the lights.

[theangelleshow]

@SORRYFORTHEREVIEW / @scivislab yeah, visuals are definitely more important than avoiding direct contact with poison!

[arghleblargh]

Yeah you are right - should at least have an AC/DC logo or something

[nickkap08]

@SORRYFORTHEREVIEW why?

[RxRoid]

This is a really good video, but I don't understand what the procedure accomplishes.

[LifeAmongTheDeadBand]

He explained that in the beginning.

[poisoninthestix]

petroleum ether(naphtha) would work just as well a solvent i would think, right? i plan on taking organic chemistry this summer(i only have a small background in chem.) and I find these vids great tutorials. hope to see more in the future!

[zaraliata]

wearing short sleeve shirt is not safe!!!

[ethyllithium]

I didn't know that the top layer (in your case ethylacetate) had to be removed out the top of the seperatory funnel. Thanks for the tip!

[stranger2008]

awesome!

[Ninlar]

Keep it up guys. Lab techniques are a crucial part of succeeding in a course like this.

[scivislab]

Thanks! We will have more chemistry lab videos soon.