fff - 20-12-2018 at 13:46
I reacted 5% distilled vinegar with excess really impure calcium (hydr)oxide, and after a few days, bubbling stopped and some solid remained but
there's still some smell left. I'm sure the reaction should be complete as this was 2 batches combined. What smell is that?
[Edited on 21-12-2018 by fff]
Abromination - 20-12-2018 at 15:57
Calcium acetate may have a vinegar like smell.
Tsjerk - 20-12-2018 at 23:02
What do you mean with 2 batches combined?
fff - 21-12-2018 at 09:06
Combining 2 batches of reaction from same amount of reactants.
unionised - 21-12-2018 at 09:36
Once there is a significant quantity of calcium acetate present the dissociation of the acetic acid is suppressed. That makes the mixture much less
acidic.
That shouldn't matter much if you have calcium hydroxide, but if you actually have carbonate- and you say it bubbles- then the mixture will not be
acidic enough to react with carbonate.
So, there will be acetic acid present- hence the smell- but it will not attack carbonates.
r0749547 - 21-12-2018 at 13:06
You could try to heat up the mixture during the reaction, the solubility of CO2 will decrease and the solution will become less acidic.