Soluble gases

Priestley became the first person to infuse gases such as ammonia, sulfur dioxide, and hydrogen chloride into an upside-down mercury-filled vessel, allowing for the collection of gases that could not be captured through water because they dissolve in water.
 Joseph Priestley England 1770 Soluble gases

Priestley became the first person to infuse gases such as ammonia, sulfur dioxide, and hydrogen chloride into an upside-down mercury-filled vessel, allowing for the collection of gases that could not be captured through water because they dissolve in water.