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bbartlog
International Hazard
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| Quote: | | Upon heating with dry CaCl2 and condensing the vapors should yield pure concentrated HCl. |
I suspect that this would not run to completion unless you milled the two powders together to achieve a very intimate mixture; otherwise, the calcium
oxalate would tend to encase the CaCl2 as the reaction proceeded. Also, I hope you realize that the HCl generated would be fairly dry HCl gas, i.e.
'condensing the vapors' would require cryogenic temperatures.
The less you bet, the more you lose when you win.
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AJKOER
Radically Dubious
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Thanks bbartlog:
I agree with your reservations on the attempt to mix the dry salts.
Actually, it may even be worst. An MSDS reports the reaction of Oxalic acid with strong oxidizers as explosive. Given the powerful and violent
reaction of anhydrous CaCl2 with water, a similar fate may befall anyone heating the mixed dry salts in an enclosed vessel.
If still possible, I will appropriately add a cautionary note to my dry suggested synthesis.
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Lambda-Eyde
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This paper has been posted multiple times on the forum, most recently in a thread about generation of dry HCl here. Magpie tested the method, as shown in the same thread.
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You should really listen to ABBAPlease drop by our IRC channel: #sciencemadness @ irc.efnet.org
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