Aggregation of microparticles of a water-soluble polycrystalline substance in pores

Abstract

We have proposed synthesis of polydisperse particles of poorly soluble substances through precipitation in pores of a water-soluble matrix. As a matrix, we used sucrose pressed under mass production conditions. In its pores, we obtained highly dispersed BaSO₄ particles precipitated by reacting Ba(NO₃)₂ and Na₂SO₄. The BaSO₄ particles were separated from the aqueous phase using a track-etched membrane filter and characterized by electron microscopy.