Precipitation of strontium sulfate in aqueous solutions at 25°C

Calcification of Biomaterials

“…The induction time is inversely proportional to the rate of nucleation and according to the classical nucleation theory the following relationship may be written [10]: The induction time is inversely proportional to the rate of nucleation and according to the classical nucleation theory the following relationship may be written [10]:…”

Precipitation and Dissolution of Alkaline Earth Sulfates: Kinetics and Surface Energy

“…An experimentally determined linear relationship between lnτ or lnJ and (lnS) -2 is no guarantee that homogeneous nucleation has occurred. From precipitation data for celestine (SrSO 4 ), Malollari et al (1995) showed that, for a number of solutions maintained at constant supersaturation, kinetic data from log-log plots of the measured initial rates as a function of relative supersaturation defined two linear parts corresponding to low and high supersaturations. Malollari et al (1995) suggested that the apparent change in effective order, from n = 1 to n = 4, reflected a transition from homogeneous to heterogeneous nucleation.…”

“…From precipitation data for celestine (SrSO 4 ), Malollari et al (1995) showed that, for a number of solutions maintained at constant supersaturation, kinetic data from log-log plots of the measured initial rates as a function of relative supersaturation defined two linear parts corresponding to low and high supersaturations. Malollari et al (1995) suggested that the apparent change in effective order, from n = 1 to n = 4, reflected a transition from homogeneous to heterogeneous nucleation. From the slope of the plot of lnτ against (lnS) -2 corresponding to the homogeneous process, a value of γ s = 88 mJ m -2 was calculated for the interfacial tension of the precipitating SrSO 4 .…”

Room-temperature template-free synthesis of dumbbell-like SrSO4 with hierarchical architecture

“…Especially, the excellent lubricating properties of sulfate materials are closely related to its morphologies and structures [19]. Meanwhile, SrSO 4 precipitation is studied as a model to test many theories of precipitation reactions and complex structure synthesis methods [20,21]. However, as compared with great progress in research on its properties and applications, there are only a few reports on the synthesis of SrSO 4 nanostructures, especially on its hierarchical architectures.…”