Table 1.

Solute Activity Coefficients and Octanol/Water Partition Coefficients at 25.0°C.

Solute	$\mathbf{Log}{\mathit{\gamma }}_{\mathbf{\varphi }}^{\mathbf{o}}$ (GLC)	$\mathbf{Log}{\mathit{\gamma }}_{\mathbf{\varphi }}^{\mathbf{w}}$ (Generator column/HPLC or GC)	Log Ko/w
			Calculateda	Experimental
n-Pentane	0.555	4.19	3.63 (3.68)	3.62
n-Hexane	.530	4.73	4.20 (4.22)	4.11
n-Heptane	.517	5.28	4.76 (4.77)	4.66
n-Octane	.512	5.80	5.29 (5.29)	5.18
1-Hexene	.504	3.98	3.48 (3.47)	3.39
1-Heptene	.491	4.58	4.09 (3.07)	3.99
1-Octene	.479	5.24	4.76 (4.73)	4.57
1-Nonene	.470	5.81	5.34(5.30)	5.15
Toluene	.509	3.17	2.66 (2.66)	2.65
Ethylbenzene	.505	3.66	3.15(3.15)	3.13
n-Propylbenzene	.494	4.22	3.73 (3.71)	3.69
Ethylacelate	.621	1.15	0.53 (0.64)	0.68
n-Propylacelate	.534	1.64	1.11(1.13)	1.24
n-Butylacetate	.425	2.15	1.73 (1.64)	1.82

^aValues in parentheses were calculated using the hydrophobicity equation (eq 17).