Doug's Lab - 2014-08-04
Chloroform is made from sodium hypochlorite and acetone.
i've been running distillations for years and i still find it mesmerizing to watch a vapor front climb
Confucius predict you spend more time doing distillation.
Same, chemistry is my first love, I can watch a distillation for hours on end, it's hypnotic like staring into a campfire. I lose track of time because I get so absorbed in the beauty of it all. If only I could find a woman who makes me do the same.
my go to chemist
doug's lab, cody's lab, nurdrage, and nile red...thanks for making me feel smartz
Chem player?
omg me too
The hypoflourite ion does exist. (hypoflorous acid is in fact the only solid-state stable hypohalous acid) The problem with fluorine lies in the fact that the haloform reaction mechanism reguires a partial positive charge on the halogen, but fluorine is so electronegative that it has a partial negative charge in the oxygen to fluorine bond.
You really deserve more Subscribers...
You would have gotten a much higher yield if you let the liquid in the jugs settle longer. The turbidity in the first 3 liters that you decanted down the drain was due to suspended chloroform, so you lost a lot of chloroform by decanting those down the drain.
thing is, the water has a large amount of salts in it so the difference in densities is much smaller. This makes the dispersion settle much slower than one might expect. Might be better had he left it overnight or something.
The cloudiness when decanting may suggest you didn't let it settle for long enough.
WARNING! You have to stabilize the Chloroform if you wanna store it for a long time
You have a severe lack of subscribers. Maybe see if you can do a collaboration with Cody's Lab or Nile Red, it could help you gain some traction :P Love your channel, keep it up.
12:53 thats pretty cool. I really like watching the vapor front creep up and over
hypofluoric acid was synthesised at very low temperature, but I don't know about the anion. Thanks for your videod!!!!
I am a degreed chemist and I love this channel.
Dougs dating "cologne" is super effective ..
Very informative! Finally someone who explains the chemistry behind it all.
I like your down to earth style of providing the information. I enjoy watching your videos of chemistry the most. Cheers
Thank you for helping me prank my whole school they slept for 1 hour
Hey, I was wondering if you wanted to try extracting caffeine from something using chloroform. Caffeine is twice as soluble in chloroform than in dichloromethane. You have a fume hood so the fumes from boiling off shouldn't be an issue.
Wow! Now I see why chloroform is so expensive from the lab supply! This was about 40 bucks for that little bit of liquid.
Best video on this I've seen. No BS. Kudos
could one use calcium hypochlorite for this reaction?
very interesting thanks love your channel and your zhmapper one 2
Also I'm not sure if you already have a video on it, but you should do a video on how to clean your glassware.
I like to see some another metal so how can I contact you
How do I P.M. Dough????
FO^- can't exist to my knowledge because of the electronegativity of fluorine being higher as the electronegativity of oxygen - so you should be correct
How would one synthesize CCl2F2 from Dichloromethane?
Can you make a video on how to make LSD
Its about time and this channel will be huge thank you doug
Nice vapor line. Liked just for that.. lol
So how can I buy some from you I need sleep at night
Bad idea. It is carcinogenic. That is why they stopped using it for an anesthesia. Better to work to the point of exhaustion. Then no problem going to sleep.
I’ve tried making some chloroform this way but the chloroform that separates out is a dark straw colour, any ideas what’s happening?
Why cant you distill the rest of the water containing the 60 ml soluable chloroform?
There are others now, but I think you can compete with them in videos like this.
Dead channel?
But what about phosgene?!
Doug man, you still with us amongst the living? Haven't heard from ya in a while. Hope you didn't have an unfortunate lab accident. I could see not making YT video esp with YT's rules and algorithms. But man let us know if your still alive!
Great video. What is the ratio of NaOCl and acetone? I want to do it with NaOCl at 14 %.
Getting anything higher than 25% is much more difficult.
You need a dripper to get just 75% concentrate.
You'll need to do it 2 or 3 times as well.
Try freezing out the CHCl3 from the waste aqueous phase. Freeze until about half frozen. Pour off liquid. Ice should be pure water. Some CHCl3 should be in liquid phase. Phase separate out the CHCl3. Combine aqueous phases. Repeat.
Keep repeating until no more CHCl3 is obtained. Report yield in another YouTube video.
Hi, can you please make a video on the synthesis of benzyl methyl ketone via chloroacetone and benzene? Thanks!
choloacetone (extremely irritant), benzene (carcinogenic). For a hobbie lab, it's not safe, i think
This is better made via Grignard reaction with benzyl chloride and acetonitrile . Smells sweet too.
can trichloroethane b made from chloroform?
You just could use syringe with tube to get all chloroform from the bottom of jags
Would you add ethanol to help stabilize it or not? Also would keeping it in the refrigerator help it or not?
Yes, add a small amount of ethanol and storing in a refrigerator is not a bad idea either.
Hi! How can you neutralize the chloroform left in the water before discarding it?
Hydrolyse with aqueous NaOH/KOH, either let stand for a while or if you’re in a hurry reflux
@Luke Styles what are the byproducts?
Davide De Rosa NaCl/KCl and Formic Acid
@Luke Styles thank you. I expected that (via chlorocarbene intermediate) but I couldn't find a source to check.
Pool shock easier
The best way i saw to do this, and u can get close to quantitative amounts, even doing all three gallons, was to use a 10 gallon bucket, a whole bag of ice, like store bought bag, pour jnto bucket, then bleach, then your 130ml of acetone or MEK, stirring constantly, another bag of ice nearby, just incase. As u stir it goes cloudy, ice even gets smaller. But it slows the warming after 30 or so minutes, ice cubes are very melted, but still there. Pour in more ice, not necessary to dump whole bag, maybe half a bag. U can leave the area and live life... come back a few hours later, even doing this setup at night, sleeping after temperature rising has plateaued or at least appears to, after 20-30min. Next morning using an oral syringe or turkey baster (jve used nasal suckers for babies to siphon before) suck out the chcl3 and put into amber bottle, store in cool, dark place, capped.
What did you use the chloroform for?
+Brian Johnson Don't act like you don't know ( ͡° ͜ʖ ͡°)
Kidnapping kids
😀😀
doesn't ethanol + hypochlorite also make chloroform?
yes
Just struck me odd thinking about the nasty carcinogenic tendencies of chloroform. Replace two of the Cl's with Fluorine gives R-22 (Chlorodifluoromethane) which is supposedly harmless. Chloroform is an interesting molecule particularly when oxidized.
doug you are the best
aga - 2016-09-03
Always add 1 w% ethanol to stabilise/prevent phosgene build-up if you're going to store it.
ChemLab - 2019-06-06
aga Thansk for the tip
bromiso valum - 2020-02-04
Excellent advise!