Quote Originally Posted by Viking
Oi, that is correct; H2CO4 is purely hypothetical. The reaction is already happenening, that's what I ment by it becomming more common; though that is an unaccurate term.
Then it should be H4CO4.


Quote Originally Posted by Viking
Lowered body pH?

In the "famous" accident in Lake Nyos in Cameroon, the CO2 released from the lake replaced the normal air since it is heavier, thus leaving no oxygen left.
Your blood uses CO2 as a pH-buffer.
The nausea caused by hyperventilation and holding your breath is because of the changed CO2 levels BTW, not oxygen content.

Too much CO2 in the blood is called hypercapnia, hypercarbia and the acidic blood due to this is called respiratory acidosis. Better google-fu this time.

7-10% is lethal (no matter the oxygen content), while above 1-2% will start to be increasingly uncomfortable.