1. Scientific Foundations of Hollow Glass Microspheres 1.one Composition and Microstructure 1.1.1 Chemical Composition: Borosilicate Dominance Hollow glass microspheres (HGMs) are primarily made up of borosilicate glass, a material renowned for its low thermal growth coefficient and chemical inertness. The chemical make-up commonly features silica (SiO₂, 50-ninety%), alumina (Al₂O₃, 1... https://www.bib.az/post/229342_sulfide-powder-refers-to-the-chemical-compounds-powder-with-large-families-of-in.html