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+ Sorption
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Ooi Teng He

What is the difference between sorption and adsorption?

Banti Singh (???? ????)  Follow

Adsorption is a surface-based process where a film of adsorbate is created on the surface while absorption involves the entire volume of the absorbing substance

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Charles MacKay  Follow

Thanks a lot to @Eslam Salama, @Amir Behravan, and @Saja Mohsen

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Debra Barnett  Follow

Sorption includes both adsorption (which means accumulation of a substance at the surface of a solid or a liquid) & absorption (which means assimilation of a substance within the bulk of a solid or liquid).
Adsorption is usually a physical operation. If the adsorbed material interacts with the surface, then chemisorption occurs "which is a chemical process of temporary nature". Chemisorption ends up by a physical operation called desorption.
Note: In industrial chemistry & chemical engineering, a process & an operation are NOT synonems. A process denotes a chemical change while an operation refers to a physical change.

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Cade Ellis  Follow

Adsorption is a poorly defined term. It is recommeded to use the term sorption. Sorption describes for example the binding of chemical compounds at the surface of solids. Models to descripe sorption on solids in more detail are ion exchange and surface complexation.


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Arthur Renner  Follow

Sorption cover adsorption and absorption (surface and body phenomena, chemical and physical interaction) but adsorption represent only the surface phenomena.

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Barbara Robson  Follow

Sorption describes the actions of absorption and adsorption - desorption is the opposite of sorption. Adsorption and absorption are important processes that occur in chemistry and biology.
The major difference between adsorption and absorption is that one is a surface process and the other a bulk process.
Adsorption — takes place on the surface of a substrate
Absorption — one substance enters the bulk, or volume, of another substance e.g. a gas absorbed by a liquid

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Christopher Lucy  Follow

adsorption is a surface phenomina, matter adsorbed onto surface
absorbtion is into body phenomina


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Connor Foley  Follow

Dear Hanin
Sorption is a concomitant phenomenon of adsorption and absorption.
Adsorption describes the phenomenon in which molecules that are present in a fluid (liquid or gas), concentrated spontaneously on a solid surface by a finite time.

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Bill Hawkins  Follow

Adsorption seems to share the same meaning with sorption.


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Andy Heilveil  Follow

I think mr. Matar is right. Sorption is both adsorption and absorption. Using the term adsorption we are talking on sorption on something. In my article I use the term adsorption of metals on surface of either FeOOH or MnO2. (adsorption can be on many other surface)

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Ask Jadzie  Follow
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Dong-Yoon Lee  Follow

Watching this video will help you to understand the difference between these two concepts:

https://www.youtube.com/watch?v=djIzXvwIz5U

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