One. Scientific Foundations of Hollow Glass Microspheres 1.one Composition and Microstructure 1.1.one Chemical Composition: Borosilicate Dominance Hollow glass microspheres (HGMs) are principally composed of borosilicate glass, a cloth renowned for its minimal thermal enlargement coefficient and chemical inertness. The chemical makeup commonly consists of silica (SiO₂, 50-90%), alumin... https://www.geto.space/post/74079_sulfide-powder-refers-to-the-chemical-compounds-powder-with-large-families-of-in.html