Effect of Various Gases on the pH of Water
Ultrapure water (>15 megohm cm, 25 degrees) was saturated with various “inert” gases: H2, 02, N2, He, Ar, CH4, and CO.
& Battino, R.
(1973). Effect of Various Gases on the pH of Water. The Journal of Physical Chemistry, 77 (6), 826-827.