Canadian Journal of Research/Canadian journal of research · 1948 · 19 citations · 0 references
Natural SciencesMaterials EngineeringMaterials SciencePhysical ChemistrySurface ChemistrySurface ScienceParticle SizePorosity CharacterizationSurface AdsorptionSurface AnalysisSurface PhysicsAdsorption CapacityAdsorption IsothermsCarbon BlackPermeability StudiesPorosity MeasurementSpecific Surface Area AnalysisSurface Adsorption IsothermsSurface Area Characterization
The modified Kozeny equation has been found to be satisfactory for the measurement of the specific surfaces of carbon blacks having average particle diameters ranging from 0.01 to 0.1 μ to within ±10%. Comparative data were obtained from electron microscope counting and from low temperature nitrogen adsorption isotherms. The three methods examined gave results that were in satisfactory agreement, except when the carbon black was porous, and then the adsorption value was extremely large.