Micromeritics ASAP 2460 - Kelvin Equation with Harkins and Jura Thickness Curve

t
13.99
0.034 P/Polog–
---------------------------------------------


1/2
=
ASAP 2460 Operator’s Manual Appendix F
246-42800-01 - Aug 2013 F-15
Kelvin Equation with Harkins and Jura Thickness Curve
N2 - Harkins and Jura Thickness Curve
The kernel function is calculated using the Harkins and Jura equation with standard parameters:
The nitrogen properties used in the Kelvin equation are:
N2 - Harkins and Jura Thickness Curve
The calculation is the same as above except that cylindrical geometry is assumed.
Geometry Slit
Substrate Average
Category: Porosity
Method: Nitrogen at 77 K
Surface tension =
8.88 dynes cm
-1
Molar density =
0.02887 g cm
-3
Geometry Cylinder
Substrate Average
Category: Porosity
Method: Nitrogen at 77 K
Reference: W. D. Harkins and G. Jura, J.A.C.S. 66, 1366 (1944).
J. H. DeBoer et al., J. Colloid and Interface Sci. 21, 405 (1966).