Supercooling of Aqueous Solutions of Alkali Chlorides and Acetates

Homogeneous nucleation temperatures (TH’s) of aqueous alkali chloride and acetate solutions were measured as a function of salt concentration. There is a linear relation between TH and 1/r+ (r+: ionic radius of alkali ion) for aqueous alkali chloride solutions. In the supercooling of aqueous alkali acetate solutions, the ionization constant also plays an important role in their supercooling behavior. The TH results were discussed in relation to nucleation theory.