Re:What Coke Contains (2013)
by wycx on Saturday September 20, 2014 @05:54AM
(#8344142)
You would make a phosphate salt. Depending on its solubility, it may precipitate. Depending on the log K, your cola might no longer be acidic at all, and as others have suggested, not taste as nice, making the addition of both the phosphoric acid and calcium carbonate pointless.
2 H3PO4 + 3 CaCO3 -> Ca3(PO4)2 + 3 H2O + 3 CO2
The calcium phosphate phase listed above may not be the stable phase in cola solution at NTP, but is the simplest example.
Re:What Coke Contains (2013)
by runeks on Friday September 26, 2014 @12:25PM
(#8373400)
How about intentionally adding a base that creates a very water-insoluble salt? Then the process is just 1) add base 2) filter 3) re-carbonate it, and you have non-acidic coke.
2 H3PO4 + 3 CaCO3 -> Ca3(PO4)2 + 3 H2O + 3 CO2
The calcium phosphate phase listed above may not be the stable phase in cola solution at NTP, but is the simplest example.