On Tue, 2 Dec 2003, Joe wrote:
Coke has
sugar and caffiene mixed in, but also has a good
deal of phosophoric
acid in it.
I don't think coke has but a trace of phosphoric acid. I think the main
ingrediant (besides water) is carbonic acid (CO2 and water). Phosphorus is
some NASTY stuff. It's used in rat poison and I've seen the skeletons of
animals that have ingested it. It causes the bones to litterally crumble
away. I do my best not to get it on my skin and I always rinse VERY well
after using it.
Phosphorus is toxic (white Phosphorus, the kind that used to be used
in rat poison, is especially toxic) but Phosphoric acid is not toxic (though
it is a strong acid so a concentrated solution _will_ burn you)
I would guess that Coca Colas main tartness comes from Phosporic acid
so it must have a fair amount (PH 2.5 - 3)
In the olden days you could get a "Cherry Phosphate" at the Soda
Fountain. These are made tart by adding a few drops of concentrated
Phosphoric acid...
Peter Wallace