vano
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Copper DMSO complex + photos
Hi. Today i made copper DMSO complex. Where I read it was written that anhydrous copper chloride had to be dissolved in absolute ethanol and DMSO had
to be added dropwise. But I dissolved it in isopropyl alcohol instead of ethanol.
At first it was yellow, but then it turned green (not because of the water, because I did not add a drop of water). Then I put a small amount in the
water and it dissolved incredibly fast. It is a very interesting compound and at the same time cheap to make.
In water.
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DraconicAcid
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What stoichiometry?
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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vano
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CuCl2 + 2DMSO = Cu(DMSO)2Cl2
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Mateo_swe
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Can it be used for something interesting?
DMSO is absorbed right through the skin, i wonder if it would do the same with this complex.
That might be real bad, but interesting to know.
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vano
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@Mateo_swe I also thought about such an issue. DMSO is known to be absorbed by the skin. It is a well-known fact that if we dissolve sodium cyanide in
it and this concentrated solution gets on the human skin, then the person will definitely die (of course I mean the lethal dose). This compound
decomposed instantly into copper chloride and DMSO upon reaction with water. I do not know exactly how effectively copper is absorbed by the skin.
But, if we can form a cyanocomplex, a selenite or selenate complex with a smaller atom, then we might also call this compound a chemical weapon. If
possible such a compound would be extremely dangerous.
[Edited on 15-1-2021 by vano]
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valeg96
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As far as I know these are inorganic salts with DMSO instead of hydration water, not coordination compounds. There are other analogues; if you are
interested, vano, please DM me so I can put here a couple articles with their preparations tomorrow.
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DraconicAcid
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Most transition metal hydrates are also coordination compounds, so I'd be surprised if the DMSO wasn't coordinated.
I doubt two molecules of DMSO per formula unit is going to cause the substance to go through the skin like a chemical weapon.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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vano
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I agree that a lot of metals form a complex. I also think that copper chloride in this particular case is not absorbed by the skin, or in very small
amounts. But other compounds may be found, such as samarium, which can bind much more DMSO. I would like to know more about such compounds. For
example, if DMSO is substituted, then the compound will become much more poisonous, there are many compounds that are much better absorbed by the skin
and at the same time increase the toxicity of other poisonous compounds even more. Substances like this can kill a person, but I certainly do not
think it will ever be considered a weapon of mass destruction.
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