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Gas–liquid absorption (a) and liquid–solid adsorption (b) mechanism. Blue spheres are solute molecules.

Sorption is a physical and chemical process by which one substance becomes attached to another. Specific cases of sorption are treated in the following articles:

The reverse of sorption is desorption.

Sorption rate[edit]

The adsorption and absorption rate of a diluted solute in gas or liquid solution to a surface or interface can be calculated using Fick's laws of diffusion.

See also[edit]


  1. ^ Crini, edited by Grégorio; Badot, Pierre-Marie (2010). Sorption processes and pollution : conventional and non-conventional sorbents for pollutant removal from wastewaters. Besançon: Presses universitaires de Franche-Comté. p. 43. ISBN 978-2848673042.CS1 maint: extra text: authors list (link)