The solubility of calcite and aragonite in seawater at various salinities, temperatures, and one atmosphere total pressure.

Abstract

The stoichiometric solubility constants of calcite and aragonite in seawater were determined over a wide range of salinity (5.44 per mil) and temperature (5o-40o) at 1 atm total pressure. The solubility meaurements were carried out from both supersaturated and undersaturated solutions using a closed system technique. The results of over 480 independent measurements are presented and compared to the results of previous investigations. The results of recently measured thermodynamic solubility products of calcite and aragonite are discussed and used in conjunction with the most recent methods of estimating total ion activity coefficients in complex electrolyte solutions to analyze the data.-from Author