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Jacob42
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Where to get DCM?
I’ve checked Etsy, eBay, Amazon, etc no results. Also checked labdirect but they’re dead. Anyone else know a source (residential—no Ligma
Aldrich recs)?
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j_sum1
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I always get mine by distilling paint stripper. But I know that is not an option in many parts of the world.
Where are you located?
If it is a restricted chemical in your region, you may just need to go through a chemical supply company and complete whatever paperwork is required.
If that is not an option, you really want to consider whether it is worth getting offside with LEO by possessing substances that are considered
forbidden (for whatever reason).
An alternative may be to make your own chloroform which can be substituted for DCM in many situations.
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B(a)P
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On the off chance you are in Australia I get mine from Sydney Solvents
You could also try a commercial cleaning supply company.
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Sulaiman
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Easier to answer if your location is known,
eg DCM is generally restricted in many countries (eg uk)
and freely available in others
(eg here I can buy 20l for equivalent usd40 incl. delivery via home shopping sites)
If in usa identifying your state may help with locating OTC supplies etc.
CAUTION : Hobby Chemist, not Professional or even Amateur
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Lion850
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I you happen to be able to visit Brisbane I have some to spare
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yobbo II
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In. Uk you can get professional paint stripper in car excessafyy shop
Yob
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Raid
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In the US its a bit harder to find paint stripper that contains Methylene Chloride...
But Amazon is selling a gallon for $60 if anyone is looking for any.
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Lionel Spanner
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If you're based anywhere near Europe, Laboratorium Discounter (based in the Netherlands) sell it at very reasonable prices.
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alking
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I can't find it in the US anymore, the EPA banned it a few months ago. Used to be able to buy it on Amazon.
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charley1957
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https://www.laballey.com/products/dichloromethane-methylene-...
You can’t claim you drank all day if you didn’t start early in the morning.
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Texium
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Pricey as all hell!
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pantone159
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https://www.laballey.com/products/dichloromethane-methylene-...
I suppose 4L of HPLC grade won't be the cheapest. The same store has the link above for 0.5 liters of ACS grade for $50, and 'lab grade' is $44.
I have not used this supplier, fwiw, just noting a lower price option.
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charley1957
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https://www.flinnsci.com/globalassets/flinn-scientific/all-p... Not so pricey. Oops, didn’t see that part at the bottom. Can only be shipped to
schools, etc.
[Edited on Jul07-19-2023 by charley1957]
You can’t claim you drank all day if you didn’t start early in the morning.
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charley1957
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https://www.epa.gov/chemicals-under-tsca/epa-finds-methylene... Our tax dollars at work, steadily eroding our ability to do home science.
You can’t claim you drank all day if you didn’t start early in the morning.
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ChemGlass
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Go to my Etsy shop: Synthetika Chemicals
I have DCM for sale. ACS grade and pretty competitively priced. I just added ACS ether, ACS DCM, tosyl chloride, 48% HBr, ACS glacial acetic acid to
my Etsy, which has very good shop reviews and I get a lot of return customers. I have a bunch of new chemicals I'm going to add to my Etsy shop as
well as my website (which needs a little updating).
My personal website, Synthetikachemicals.com, only has about 20 chemicals on there but I have another 20 I'm going to add soon.
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ChemGlass
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Oh, and I have Red-Al listed as well.
I'm sure there's some people on SciMad who can vouch for my company. I just moved to a new warehouse and been pretty busy moving fume hoods and a lot
of bulky/heavy pieces of equipment so I haven't had time to completely update my Etsy and personal website, which both need updated bottle images and
chemicals added. I'll have some time this weekend to do this. You can see some of my chemicals listed when using Google Shopping too, so maybe you've
seen the name once or twice when on Google.
DCM is available on my Etsy though.
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Dr.Bob
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If you are in NC, I know a guy...
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Rainwater
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I wonder if theres a way to synthesis it easily. Wiki says 500c + methanol + HCl.
But with the possibility of making phosgene, i think ill let someone who actually knows what their doing handle this one.
"You can't do that" - challenge accepted
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Texium
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Nope. The other major industrial way is free-radical
chlorination of methane, but that’s not selective and produces a mixture of chloromethane, DCM, chloroform, and carbon tet.
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unionised
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It's probably got more to do with avoiding deaths; but you can think it's about hobbyists if you like.
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unionised
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What shops?
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Rainwater
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No Phosgene risk?
All but the CH3Cl seam like common and useful solvents. i see them mentioned in a lot of literature
"You can't do that" - challenge accepted
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charley1957
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@unionised, I think it’s more about the nanny state once again thinking they can protect us better than we can protect ourselves. Let’s ban it
from everybody because a few idiots injured or killed themselves using the stuff. More people killed by baseball bats and bricks than ever died by
DCM I would suspect, but I don’t see these items ever being banned.
You can’t claim you drank all day if you didn’t start early in the morning.
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Texium
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Quote: Originally posted by charley1957  | | @unionised, I think it’s more about the nanny state once again thinking they can protect us better than we can protect ourselves. Let’s ban it
from everybody because a few idiots injured or killed themselves using the stuff. More people killed by baseball bats and bricks than ever died by
DCM I would suspect, but I don’t see these items ever being banned. |
Nice whataboutism. It's not just about
people who die. DCM's toxicity is nothing to scoff at. See here what happens when a minuscule amount was accidentally injected into a student's finger. It ain't pretty. That doesn't happen when someone
mishandles a baseball bat or a brick.
Daily exposure to baseball bats also doesn't increase your chances of cancer and liver failure. On the other hand, people who are exposed to DCM fumes
occupationally are at a higher risk of health problems later on, may not be aware of it, and may not have much choice in the matter if it's just what
their employer gives them to work with. Plus there are much safer and more effective paint stripper formulas, some of which may make other interesting
solvents like dimethyl carbonate more accessible to us. If there is a solution that is safer and equally if not more effective, why shouldn't industry
be pressured to adopt it?
Moreover, nobody is saying you aren't allowed to own DCM, and you can still buy it, it'll just probably be more expensive since it is only
sold for more specialty, niche uses. You won't have to worry about separating it from methanol anymore though. Could even be worth the extra cost
depending on your money:time ratio.
Personally, I am more disappointed by the apparent disappearance of good, pure, not appreciably toxic solvents like ethyl acetate (itself "MEK
substitute"), toluene, and xylene from hardware store shelves in favor of a catch-all "Painter's Solvent," a useless cocktail of acetone, methyl
acetate, and petroleum distillates. But that has nothing to do with law changes, and certainly nothing to do with stickin' it to us poor home
chemists. Just the good ol' free market in action... The average Joe prefers things to be simple rather than having 20 different specialty paint
thinners and cleaning solvents to choose from.
[Edited on 7-26-2023 by Texium]
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unionised
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One death is enough to show that "we can't protect ourselves".
Is your enthusiasm for home chemistry enough to justify that death to the next of kin?
https://eu.usatoday.com/story/news/nation/2023/05/16/methyle...
https://www.independent.co.uk/news/uk/home-news/decorator-ki...
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