Hg porosimetry

Hg porosimetry determines the pore volume based on the volume of mercury injected into a specimen under increasing pressure. The volume of mercury that is pressed in directly gives the pore volume that is reached. With increasing pressures, smaller and smaller pore radii are reached. According to the Washburn equation (Washburn 1921) it is possible from this relationship to calculate - for a non-wetting fluid such as Hg - the reached pore size for each presure level an consequently a frequency distribution of the pore radii:

D = (1/P)*4γ*cosφ

where D is pore diameter, P is the applied pressure, γ the surface tension of mercury, and φ the contact angle between the mercury and the sample.



21.02.2018 10:12

AAPG ACE 2018 in Salt Lake City (19.-23.05.2018)

Gesteinslabor will present brandnew results from the frontline of research at one of the key events for petroleum geologists.

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21.02.2018 08:45

TSK 2018 in in Jena (21.-23.03.2018)

Gesteinslabor will take part at the distinguished conference dealing with tectonics, structural geology and crystalline rocks.

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31.01.2018 12:06

Spring meeting 2018 in Celle

Following a well established tradition, also in 2018 DGMK and ÖGEW will host their annual conference in the Congress Union Celle.

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