PRODUCTION METHOD OF WATER-SOLUBLE NANOCOLLOIDAL SILICA, AND WATER-SOLUBLE NANOCOLLOIDAL SILICA

摘要

This production method of water-soluble nanocolloidal silica is characterized by involving a silicate ion generation step in which a reaction material having a surface at least comprising elemental silicon is subjected to an alkaline reaction to generate silicate ions while generating hydrogen microbubbles; this water-soluble nanocolloidal silica, produced by the aforementioned production method, is characterized in that the zeta potential is negative. By means of this invention, it is possible to provide silica water which is safe and has high efficacy as a health beverage.