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Author: Subject: Acetic anhydride preparation
International Hazard

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[*] posted on 19-5-2021 at 15:11

^Considering I didn't say anything about using "salt" with muriatic, I'm not sure what you think you're critiquing.

In any case, this is tedious. If you have excess liters of sulfuric acid burning a hole in your pocket, obviously your problems are much different from mine. Hydrochloric acid is easily concentrated by distilling it over any number of dehydrating agents -- H3PO4, CaCl2, H2SO4, take your pick. I wish you luck in your efforts.

[Edited on 19-5-2021 by clearly_not_atara]

[Edited on 04-20-1969 by clearly_not_atara]
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[*] posted on 20-5-2021 at 00:45

Then it might be best to boil it under reflux (to get rid of water vapour), and led the HCl gas through a calcium chloride trap. This is slightly more complex than the sulphuric acid/salt generator, but has the definite advantage of not using any sulphuric acid.

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