Sorbent

Sorbent

A sorbent is a material used to adsorb either liquids or gases. Examples include:
*A material similar to molecular sieve material. It has a large internal surface area and good thermal conductivity. It is typically supplied in pellets of 1 mm to 2 mm diameter and roughly 5 mm length or as grains of the order 1 mm. Occasionally as beads up to 5 mm diameter. They are typically made from aluminium oxide with a porous structure.
*Materials used to absorb other materials due to their high affinity for doing so. Examples:
**A sponge absorbs many times its own weight in water.
**A polypropylene fiber mat may be used to absorb oil.
**A cellulose fiber product may be used to absorb oil.
**The granular gel material in a baby diaper will capture several times its original weight in urine.


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  • sorbent — [sôr′bənt] n. any substance or process that adsorbs, absorbs, or desorbs …   English World dictionary

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  • sorbent — noun Etymology: Latin sorbent , sorbens, present participle of sorbēre to suck up more at absorb Date: circa 1856 a substance that sorbs …   New Collegiate Dictionary

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  • sorbent — noun a material that sorbs another substance; i.e. that has the capacity or tendency to take it up by either absorption or adsorption • Syn: ↑sorbent material • Derivationally related forms: ↑sorb • Hypernyms: ↑material, ↑stuff …   Useful english dictionary

  • Sorbent tube — Sorbent tubes are the most widely used collection media for sampling hazardous gases and vapors in air. They were developed by the US National Institute for Occupational Safety and Health (NIOSH) for air quality testing of workers. Sorbent tubes… …   Wikipedia

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