1. Scientific Foundations Of Hollow Glass Microspheres 1.one Composition and Microstructure 1.1.one Chemical Composition: Borosilicate Dominance Hollow glass microspheres (HGMs) are largely composed of borosilicate glass, a fabric renowned for its very low thermal enlargement coefficient and chemical inertness. The chemical makeup generally includes silica (SiO₂, 50-90%), alumina (Al₂... https://www.geto.space/post/74079_sulfide-powder-refers-to-the-chemical-compounds-powder-with-large-families-of-in.html