Table 3.

Test liquids (mN/m).

Liquid	$\mathit{\gamma }$	${\mathit{\gamma }}^{\mathit{L}\mathit{W}}$	${\mathit{\gamma }}^{+}$	${\mathit{\gamma }}^{-}$
Water	72.8	21.8	25.5	25.5
Formamide	58.0	39.0	2.28	39.6
Diiodomethane	50.8	50.8	≈0	≈0