The solubility of carbon tetrachloride in water and seawater

High precision measurements of the solubility of carbon tetrachloride (CCl4) in pure water and seawater were made over the temperature range of ∼0–40°C. For comparison with previously reported results, the solubilities of CFC-11 and CFC-12 were also measured during these experiments. The experimental data were fit by equations in temperature and salinity, in the form used in previous gas solubility studies. The CFC-11 and CFC-12 results were generally in good agreement with earlier work, although some differences were noted. For CCl4, the standard error of the measurements from the fitted curves was ±2.5%. The concentrations of dissolved CCl4 measured in near-surface waters on a recent long meridional section in the South Pacific Ocean (where the temperature ranged from −1 to 29°C) are compared to calculated saturation levels based on these solubility data and atmospheric levels of CCl4 measured along the section.