Width of metastable region in salt solutions

The equation for the rate of crystal nucleation in solutions is generalized to the case of crystal hydrate formation. An expression is proposed for th e limiting supersaturation corresponding to the inflection point of the nuc leation rate-supersaturation curve. The dependence of the width of the meta stable region in aqueous solutions on specific free surface energy is consi dered for the case of solution concentration and nucleus entropy fluctuatio ns.