The limited effect of ion type on both salting-in behavior and the
corresponding dense phase morphology suggests that salting-in is
primarily driven by attractive configurations that are sensitive to the
electrostatic changes induced by pH effects. Ion effects, particularly
those due to the multivalent sulfate anion, become pronounced at
high salt concentrations (N1.0 M) in the salting-out region and
manifest themselves in apparent changes to gross crystal morphology
as well as observed time scales for crystallization.