Carbonic acid exists for only a tiny fraction of a second when carbon dioxide gas dissolves ... nucleate limestone formation, and how bicarbonate anions buffer blood and other bodily fluids.' ...

The pH of a carbonic acid solution typically ranges from 4 to 6, depending on the concentration of carbon dioxide. It is essential in the bicarbonate buffer system, helping to maintain blood pH ...

The phosphate buffer system helps regulate ... Has too much bicarbonate in the blood (metabolic alkalosis) Loses acid Has low levels of carbon dioxide (respiratory alkalosis) Respiratory alkalosis.

MANY physiologists hold that sodium bicarbonate is the main form in which carbon dioxide is carried in the blood, and that the elimination of the latter in the lungs is due to the reaction ...

higher than 8.2 on account of absorption of carbon dioxide from the air ... to avoid these difficulties by using carbonate-bicarbonate buffer mixtures.