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An online program to calculate CO₂ solubility in pure water and aqueous NaCl solutions (0-4.5 m) from 273 to 533K and from 0 to 2000 bar. The FORTRAN code is written by Sun Rui, now a professor at Northwest University in China. Please refer to the article below for further details and to cite in your publications:

Duan ZH, Sun R, Zhu Chen, Chou I-M (2006) An improved model for the calculation of CO2 solubility in aqueous solutions containing Na+, K+, Ca2+, Mg2+, Cl−, and SO42− Marine Chemistry, Volume 98, Issues 2–4, Pages 131-139, DOI

Please send comments or corrections to Professor Chen Zhu (supcrt@indiana.edu).

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