The solubility of gases in distilled water and sea water—IV. Carbon dioxide

The Measurement of Dissolution Rates of Synthetic Calcite and Calcareous Ooze from Deep Sea Drilling Project Site 506

“…The results are expressed by the following equation, an^ '"HCO3-denote the concentrations of carbonic acid and the bicarbonate ion, respectively. Combining the estimated value K o , after Murray and Riley (1971), and the obtained value A, the first dissociation constant of carbonate acid, K x , was estimated as 1.09 × I0" 6 , which is in good agreement with the value arrived at by Berner and Morse (1974). The calculations of dissolution rates and bicarbonate ion concentrations in this chapter are made using these two variables.…”

Measurement and prediction model of carbon dioxide solubility in aqueous solutions containing bicarbonate anion

“…Currently, many systems, such as CO 2 -H 2 O [3][4][5][6][7][8][9], CO 2 -H 2 ONaCl [10][11][12], CO 2 -H 2 O-KCl [11,13], CO 2 -H 2 O-Na 2 SO 4 [14], CO 2 -seawater [15] and CO 2 -brine [6], have been studied at different ranges of pressure and temperature. Many models including the Duan model [16,17] and the Peng [18] equation of state combined with Huron-Vidal [19] mixing rules (PR-HV model) for predicting CO 2 aqueous solubility have been developed in studies over recent decades using a combination of phase-equilibrium and empirical relationships [16,17,[20][21][22][23][24][25][26].…”

“…In this paper, the solubility of CO 2 was determined in an aqueous solution containing HCO 3 À in the range of 308.15-408. 15 . It is interesting to note that the Duan model is shown to fit better at low salt concentration, while the PR-HV model is more suitable for high salt concentration.…”

GLOBAL OCEAN SURFACE WATER PARTIAL PRESSURE OF CO2 DATABASE: MEASUREMENTS PERFORMED DURING 1957–2010 (Version 2010)

“…However, in practice, the fugacity values reported by various investigators are not clearly defined as to whether only the non-ideality arising from CO 2 -CO 2 molecular interactions is considered and/or that from CO 2 -H 2 O interactions is also included. The original determination of the solubility of CO 2 in seawater by Murray and Riley (1971), which was conducted by equilibrating 1 atmosphere total pressure of pure CO 2 gas, appears to include implicitly the effects of CO 2 -H 2 O interactions in gas phase above seawater samples, since the CO 2 gas above the sample water contained water vapor in equilibrium with the sample water at respective temperatures. Weiss (1974) refined their data and presented a formulation for the CO 2 solubility under 1 atmosphere CO 2 fugacity.…”