Density measurement of small porous particles by mercury porosimetry

The concept of density of solid particles is discussed, and the relation between these concepts and the different measurement methods is considered with the emphasis on the porousness (i.e. the property of ‘porous’ or ‘non-porous’) of the solid particles.Mercury porosimetry was used to determine the density of porous small particles. The limitations of this method and the influence of surface roughness and other particle characteristics on the density values obtained are also discussed.