High-Pressure Dissociation of Carbonic and Boric Acids in Seawater

Science  07 Jul 1967:
Vol. 157, Issue 3784, pp. 59-61
DOI: 10.1126/science.157.3784.59


The apparent dissociation constants of carbonic and boric acids were determined for pressures up to 654 atmospheres in seawater of 34.8 per mille salinity at 22°C. Our values for the ratios of the apparent dissociation constants at 654 atmospheres to the constants at 1 atmosphere are 1.84 1.48, and 1.94 for K'1, K'2, and K'B, respectively. At this pressure the commonly accepted values of Buch and Gripenberg for these ratios are 2.03 and 1.30 for K'1 and K'2, respectively.