Thermodynamic Solubility: Properties of Gas Mixtures: Part 1.—Two Component Gas Mixtures in Water at 25°C

Abstract

The saturation solubility of O2 + CH4, O2 + N2 and N2 + CH4 mixtures in water at 25.00°C and 1 atm total pressure are reported at O2 partial pressures of 0.25, 0.5 and 0.75 atm. The solubility of oxygen at a partial pressure of 0.5 atm in the presence of 0.5 atm pressure of helium, of ethane and of krypton are also reported. In all case the saturation solubility of each gas is reduced below the expected Henry’s Law value. Current theories for the solubility of gases in water arc discussed.