1. Scientific Foundations of Hollow Glass Microspheres 1.1 Composition and Microstructure one.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 involves silica (SiO₂, fifty-90%), alumina (A... https://www.dostally.com/post/345006_elementary-substance-is-a-pure-chemical-substance-that-consists-of-atoms-belongi.html