Solubility of pure gases like Ar - Argon CH4 - Methane C2H4 - Ethylene C2H6- Ethane CO - Carbon Monoxide CO2 - Carbon Dioxide Cl2 - Chlorine Gas H2 - Hydrogen Gas H2S - Hydrogen Sulfide He - Helium N2 - Nitrogen NH3 - Ammonia O2 - Oxygen SO2 - Sulfur Dioxide in water at one atmosphere (101.325 kPa) and different temperatures are indicated in the diagrams below. Note that for gases in combination with other gases - like oxygen in air - the partial pressure of the gas must be used. Ex. in air with normal composition oxygen counts for aprox. 20% of the total pressure. Solubility of Argon - Ar - in Water Solubility of Methane - CH4 - in Water Solubility of Ethylene - C2H4 - in Water Solubility of Ethane - C2H6 - in Water Solubility of Carbon Monoxide - CO - in Water Solubility of Carbon Dioxide - CO2 - in Water Solubility of Chlorine Gas - Cl2 - in Water Solubility of Hydrogen Gas - H2 - in Water Solubility of Hydrogen Sulfide - H2S - in Water Solubility of Helium - He - in Water Solubility of Nitrogen - N2 - in Water Solubility of Ammonia - NH3 - in Water Solubility of Oxygen - O2 - in Water