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teodor
National Hazard
Posts: 923
Registered: 28-6-2019
Location: Netherlands
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Chemplayer has a video about the preparation of chloroform from trichloroacetic acid. So, I am wondering, could a similar method be used to make DCM
from dichloroacetic acid. And yes, this is only a theoretical question. I also see no point to synthesise DCM yet.
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macckone
Dispenser of practical lab wisdom
Posts: 2168
Registered: 1-3-2013
Location: Over a mile high
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Mood: Electrical
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Haloform reactions generally require the alpha carbon be fully chlorinated.
But if you can make chloroform, you can use it to make DCM.
Yes it is tedious but it is a documented method.
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Triflic Acid
Hazard to Others
Posts: 486
Registered: 27-9-2020
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Mood: Slowly Oxidizing into Oblivion
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@Texium, I also should have been more clear. When I said on-tap, I was referring to an easy to set up a system that could produce chlorinate solvents
slowly over time, not an in-flow system. Using TCCA+H2O as a slow-release chlorine generator, this would produce a slow-release chlorine system, not
as rapid as HCl + TCCA. I also should have specified that my reactor would not be nearly big enough for this, but that the OP could try to get a
larger vessel to produce more industrial quantities. While a flow based system might be more effective, something like this https://pubs.rsc.org/en/content/articlepdf/2017/re/c6re00186... is much harder for an amateur to set up. Overall, I don't blame you for getting
annoyed at me, as, looking back, I've honestly posted a bunch of un-specific shit.
There wasn't a fire, we just had an uncontrolled rapid oxidation event at the power plant.
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Neal
Hazard to Others
Posts: 144
Registered: 24-12-2021
Location: Chicago, IL, USA.
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Yo some years ago I was asking chemistry professors what are some chemicals to remove oil from keyboards? I tried all the stuff from the stores they
didn't work, until I heard from a biochemistry professor that the oil from our finger tips is likely a fatty acid, then an organic professor said try
dichloromethane.
Now I wanna know to try to buy it. I think in higher concentrations, DCM is like a syrupy liquid, but at lower concentrations, more fluid like water?
Does Home Depot still sell something with them in the U.S.?
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karolus28
Hazard to Self
Posts: 51
Registered: 14-4-2019
Location: EU's Brazil
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Mood: zgrzyt
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no, it's kinda like alcohol
Hi, please read about exif data.
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Metallophile
Hazard to Self
Posts: 87
Registered: 23-3-2018
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DCM doesn't have a concentration. It's a pure solvent, and it boils at 40C. I got 1 liter on Amazon for about $60, but I'm sure there are better deals
out there.
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Neal
Hazard to Others
Posts: 144
Registered: 24-12-2021
Location: Chicago, IL, USA.
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Ah you're right, I was looking at this video, the syrupy part is DCM mixed with something else. https://www.youtube.com/watch?v=QdgpehUX3wU
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macckone
Dispenser of practical lab wisdom
Posts: 2168
Registered: 1-3-2013
Location: Over a mile high
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Mood: Electrical
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DCM is no longer available in 'consumer products' in the USA.
You can buy it from places like
https://www.sciencecompany.com/Dichloromethane-4L-Reagent-AC...
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