Absorption of chlorine into still liquid in a simple stop‐cock type absorber

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Abstract
Rates of absorption of chlorine from the downwardfacing surface into still liquids of various solutions, such as hydrochloric acid, sodium chloride solution, sodium hydroxide solutions, and pure water, were measured at 25°C. and 1 atm. in a simple stop‐cock type absorber. It was found that the absorption rates followed Higbie's penetration theory for long contact times when the effects of free convection of the liquid near the gas‐liquid interface were negligible.Using this type of absorber, results suggest that diffusivity of the gaseous solute in liquid can be conveniently measured with only a small amount of absorbent, and, in addition, that kinetic studies on moderately slow gas‐liquid chemical reaction systems should be possible.