The solubility of CO₂in water and sea water

Abstract

The newly measured solubility constant of CO2 in water, α0, and in sea water and NaCl solution, α, can be easily shown by the Setchenow equation log α/α0 = (0.00404 - 0.000037 t) × Cl‰ = (0.126 - 0.00115 t) × m where α0 = 770.5 - 29.78 t + 0.6823 t2 - 0.00709 × t3 (10−4 moles/liter/atm). The previous α data in water and NaCl solution by Bohr (1899) and in sea water by Krogh (1904) essentially agree with this report. Buch's (1951) estimation of a in sea water from Bohr's data is proved to be valid.