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Specific surface area - Wikipedia, the free encyclopedia

Specific surface area

From Wikipedia, the free encyclopedia

Scratches, represented by triangular shaped grooves, make the surface area bigger
Scratches, represented by triangular shaped grooves, make the surface area bigger

Specific surface area is a material property of solids which measures the total surface area per unit of mass[1], solid or bulk volume[2], or cross-sectional area[3].

It is a derived scientific value that can be used to determine the type and properties of a material (e.g. soil). It is defined either by surface area divided by mass (with units of m²/kg), or surface area divided by the volume (units of m²/m³ or m-1)

It has a particuliar importance in case of adsorption, heterogeneous catalysis, and reactions on surfaces.

[edit] References

  1. ^ http://goldbook.c60.kiev.ua/S05806.pdf IUPAC Compendium of Chemical Terminology 2nd Edition (1997)
  2. ^ http://www.soils.wisc.edu/~ss322/lectures/lec%208-11.pdf
  3. ^ http://www.russellwatergardens.com/SSA.htm
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