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Author: Subject: Chlorine as solvent
chornedsnorkack
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[*] posted on 13-3-2021 at 11:31
Chlorine as solvent


Chlorine condenses at -34 Celsius, and freezes at -102 Celsius.

What is it like as a solvent? As reaction environment?
Chlorine is a symmetric molecule, which suggests a low polarity. So what dissolves in chlorine? What reaction mechanisms are favoured?

Also, HCl condenses at -85 Celsius and freezes at -115 Celsius. It is a polar molecule, but the liquid is said to be not very polar.
Thus between -85 and -102 Celsius, Cl2 and HCl are both liquids. Are they miscible or not?
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DraconicAcid
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[*] posted on 13-3-2021 at 11:55


I would expect than, in the absence of reducing agents, chlorine would be a very non-polar solvent, much like butane. I also don't imagine it would be a particularly interesting solvent, apart from the high oxidizing power and sheer difficulty in working with it.

I'd guess that the two liquids would be miscible. But that's just a guess.




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chornedsnorkack
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[*] posted on 14-3-2021 at 00:15


BCl3 condenses at +13 C and stays liquid down to -108 C. It is trigonal planar, thus nonpolar, and unlike AlCl3 does not dimerize.
How readily does BCl3 complex with Cl2? Would it form a polar Cl+-BCl4-, which might precipitate out of low polarity Cl2? Or are Cl2 and BCl3 miscible?
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