ABSTRACT
Asbestos constitutes several types of hydrated silicate mineral bers. e types of asbestos, their chemical compositions, and CAS Numbers are presented in Table 65.1. ese substances occur in nature in rocks, silicate minerals, brous stones, and underground mines. is class of substances exhibits unique properties of noncombustibility, high resistance to acids, and high tensile strength for which they were widely used in many products, including oor and roo ng tiles, cement, textiles, ropes, wallboards, and papers. Because of the health hazards associated with excessive exposure to asbestos, the use of these substances is currently banned.
