The Dependency of Diffusion Coefficients and Geometric Factor on the Size of the Diffusing Molecule: Observations for Different Clay-Based Materials

Table 5

Geometrical factors obtained from the aqueous and effective diffusion coefficients from Table 4. Note that similar to the previous table, the reference value of 0.18 is used for the COX1 total porosity.

Core	Code		(-)	He	HTO	Ne	H2	Ar	CH4	Xe	C2H6
				(-)
BC 84b	K2	⊥	0.4	6.2	4.7	9.2		14.1	7.6	9.6	11.9
BC 127b	K4	//	0.38	3.7	3.0	6.7	3.8	6.4	4.5	8.4	8.9
BC 36a	K14	//	0.37	4.0	2.5	4.4			2.9		3.6
BC 37b	K15	//	0.4	3.5	2.0	4.0			2.6		3.6
BC 35b	K16	⊥	0.41	4.0	2.7	4.7			2.0		4.1
BC 39b	K17	⊥	0.4	5.0	2.9	5.3			3.0		6.2
Bent 1.4	Bent 1.4		0.47	19.3	6.6	18.4			30.7		60.3
Bent 1.6	Bent 1.6		0.4	10.8	10.9	18.5			79.9		161.7
COX 1	COX 1	⊥	0.18	16.1		34.6		60.2			131.1
OPA 1	OPA 1	⊥	0.096	10.2	17.5	62.1		54.0