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**Ndptbudd** · 08-09-2012, 06:34 PM

The acetate solution is only a buffer if you have added enough vinegar that about half of the acetic acid reacted with the bicarbonate and the other half is still in solution.

That might be hard to achieve in practice.

Another thought is that the carbon-like film might have a few dangling hydroxyl and carboxyl groups that might react with an alkaline reagent, leading to disruption of the structure of the the deposit.

08-09-2012, 06:34 PM	#57
Ndptbudd Join Date Oct 2005 Posts 536 Senior Member	The acetate solution is only a buffer if you have added enough vinegar that about half of the acetic acid reacted with the bicarbonate and the other half is still in solution. That might be hard to achieve in practice. Another thought is that the carbon-like film might have a few dangling hydroxyl and carboxyl groups that might react with an alkaline reagent, leading to disruption of the structure of the the deposit.
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