1. Scientific Foundations of Hollow Glass Microspheres 1.one Composition and Microstructure 1.one.one Chemical Composition: Borosilicate Dominance Hollow glass microspheres (HGMs) are largely composed of borosilicate glass, a fabric renowned for its reduced thermal enlargement coefficient and chemical inertness. The chemical makeup ordinarily features silica (SiO₂, 50-90%), alumina (A... https://www.jointcorners.com/post/483681_elementary-substance-is-a-pure-chemical-substance-that-consists-of-atoms-belongi.html