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I am trying to get get hydrogen chloride gas by using the reaction sodium chloride + vinegar = HCl(g) + sodium acetate, does it matter what type of vinegar I use eg apple cider vinegar, malt vinegar; if it does matter where could i find some pure vinegar at a reasonable price

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  • $\begingroup$ No it doesn't matter. The result won't change. $\endgroup$
    – Alchimista
    Sep 21, 2019 at 9:22
  • $\begingroup$ Since the reaction won't work for any type of vinegar, the type won't matter. $\endgroup$
    – matt_black
    Sep 22, 2019 at 15:52

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There are two show stoppers :

  1. $\ce{HCl}$ is strong acid, $\ce{CH3COOH}$ is weak acid. The reaction is practically completely shifted toward acetic acid and sodium chloride. Especially if acetic acid is diluted.
  2. $\ce{HCl}$ forms azeotrope with water with the maximal boiling point near 20% $\ce{HCl}$. If you heat the mixture, that would boil water and acetic acid with minimal traces of $\ce{HCl} $ that would dissolve back in the condensate.
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