The Importance of the Ionic Product for Water to Understand the Physiology of the Acid-Base Balance in Humans

Table 1

Some p𝐾_𝑎 values.

	p𝐾𝑎
Phosphoric acid (H3PO4)/dihydrogen phosphate (H2PO4^−)	1.97
Dihydrogen phosphate (H2PO4^−)/monohydrogen phosphate (HPO4^2−)	6.86
Monohydrogen phosphate (HPO4^2−)/phosphate (PO4^3−)	12.35
Carbonic acid (H2CO3)/bicarbonate (HCO3^−)	3.77
Citric acid/citrate	3.09
Acetoacetic acid/acetoacetate	3.58
𝛽-hydroxybutyric acid/𝛽-hydroxybutyrate	4.39
Lactic acid/lactate	3.86
Uric acid/urate	5.75
Ammonia (NH3)/ammonium ion (NH4^+)	9.3