Applications of adsorption
Applications of adsorption :
- Activated charcoal is used in gas masks in
which all undesirable or toxic gases are observed selectively by
charcoal, while purified air passes through its pores.
- Activated charcoal is used for
removing colouring matter of sugar solution and the decolouration of vinegar.
- Silica and Alumina gels are used as an adsorbent for removing moisture and for
controlling humidities of room. Silica Gel has been employed for drying air, used
in blast surfaces.
- Charcoal adsorption filters are used for removing organic
matter from drinking water.
- Selective adsorption by alumina, magnesia has been
used for separating different pigments by adsorption chromatography.
- During arsenic poisoning, colloidal fabric hydroxide is administered. The letter absorbs the
arsenic poison and retails it can thus be removed from the body by vomiting.
- Fuller's earth is used in large quantities for refining petroleum and vegetable oil
due to its good adsorption capacity for unwanted materials.
- The phenomenon of
adsorption is useful in heterogeneous catalysis Example: contact process, Haber's process, hydro generation of oils based on the adsorption process.
- Adsorption the process is used in the production of a vacuum by using activated charcoal in dewar's flask.
- Lake test for Al+ Lake test for Al+3 is based upon
adsorption of litmus colour by Al(OH)3 precipitate.
- Mordants used in Dying cloth, adsorb the dye particles, which
otherwise, do not speak to the clothes.