From: Jacob Zabicky (zabicky$##$bgumail.bgu.ac.il)
Date: Wed Mar 20 2002 - 06:01:51 EST
Hello Mohamed,
IMHO no precipitate should be expected from such reaction. On the contrary,
citric acid is capable of displacing carbonic acid, that is rather unstable
and will decompose into carbon dioxide that is expelled as bubbles from the
solution (efervescence). This mechanism will dissolve more and more
calcite, until all the citric acid is consumed, or a saturated solution of
calcium citrate or calcium hydrogen citrate is obtained. These solutions
are very concentrate.
You won't find too much material on the particular reaction you were
looking for, however, let me suggest you search for "carbonates - reaction
with acids", or "calcite - reaction with acids".
All the best.
Jacob
At 8:46 17/03/2002, khaldimh wrote:
>Hi all,
>I have been searching the internet for resources talking about the
>reaction between citric acid and calcite, calcium carbonate, but I could
>not find any.
>So, could you please tell me where I can find resources on this topic. I
>mainly concerned with the ppt that could form after this reaction.
>Thanks,
>
>=====================================
>Al-Khaldi, Mohammed H.
>Lab R&D Center
>Upstream Research Division
>Stimulation Group
>Scientist III
>Fax: 872-3929
>*: 872-4606, 872-3583
>*: khaldimh$##$mail.aramco.com.sa
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Prof. Jacob Zabicky
Institutes for Applied Research
Ben-Gurion University of the Negev Private: POB 12366, Beer-Sheva 84863
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