2 CH3COOH + CaCO3 (CH3COO)2Ca + CO2 +H2OSo the products are a salt : Calcium Ethanoate ( this could be extracted by evaporation), the co-products are carbon dioxide ( a gas which causes the solution/substance to effervesce as it is produced) and finally water is also produced.
This is a good test for rock containing carbonates,add a few drops of acid and look for "fizzing".
With the pure Glacial Ethanoic acid ( solid below 16.6 degrees C) without water the molecules do not dissociate to produce the hydrogen ions required for the above Acid/Carbonate reaction so no reaction is anticipated.
( NOTE: Jimmy Says "If the Glacial Ethanoic acid freezes it's time to put the central heating on !")
Author: Jimmy Frinton firstname.lastname@example.org
Copyright © 1997-2010 by Fred Senese
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Last Revised 08/17/15.URL: http://antoine.frostburg.edu/chem/senese/101/acidbase/faq/print-glacial-vs-vinegar.shtml