wrote in message
...
this is not a "good article", this person admits to not understanding what
is
actually going on, so she is just repeating what "others" say (which is
incorrect).
you always need to do an advanced google search designating .edu sites
only, that
explains how things work.

http://www.chemistry.wustl.edu/~edud...er/Buffer.html
"The lungs remove excess CO2 from the blood (helping to raise the pH via
shifts in
the equilibria in Equation 10), and the kidneys remove excess HCO3- from
the body
(helping to lower the pH). "

So the bicarbonate system works to INCREASE the pH by releasing CO2 (and
the lungs
blow it off) but to decreases the pH the kidneys are needed to remove
HCO3- from the
body. Ingrid



OK Here's a .edu site

"Because of its chemical makeup, Baking Soda has unique capabilities as a Ph
balancer or buffer. Buffering is the maintenance of a stable pH balance, or
acid-alkali balance. As a buffer, Baking Soda tends to cause acid solutions
to become more alkali and to cause alkali solutions to become more acid,
bringing both solutions to a stable pH around 8.1 (slightly basic) on the pH
scale. A buffer also resists pH change in a solution, in this case
maintaining a pH of 8.1."

http://www.ces.ncsu.edu/mecklenburg/depts/fce/soda.htm

The other site was better because it actually explained the chemical
process. A .edu site doesn't mean the reader understands what is being
read.