1. Scientific Foundations Of Hollow Glass Microspheres one.1 Composition and Microstructure 1.one.1 Chemical Composition: Borosilicate Dominance Hollow glass microspheres (HGMs) are primarily composed of borosilicate glass, a cloth renowned for its lower thermal enlargement coefficient and chemical inertness. The chemical makeup ordinarily incorporates silica (SiO₂, 50-90%), alumina (... https://vherso.com/post/570519_elementary-substance-is-a-pure-chemical-substance-that-consists-of-atoms-belongi.html