Glass, oxide, silver- and zinc-contg.

Silver phosphate glass

Glass, oxide, calcium magnesium sodium phosphosilicate

Glass, oxide, calcium magnesium potassium sodium phosphosilicate

Lead, dross, vanadium-zinc-contg.

Glass, nonoxide, chemicals This category encompasses the various chemical substances manufactured in the production of non-oxide inorganic glasses. For purposes of this category, 'glass' is defined as an amorphous, inorganic, usually opaque substance consisting of a mixture of elements formed by fusion into a mass that cools to a rigid condition without crystallization. This category consists of the various chemical substances, other than by-products or impurities, which are formed in melting furnaces during the production of various glasses and concurrently incorporated into a glass mixture. Any glass contains one or more of these substances, but few, if any, contain all of them. The elements listed below are normally present as elements but may also be present as halides, sulfides, selenides, or in more complex substances. Trace amounts of oxides or other chemical compounds may be present. Aluminum, Antimony, Arsenic, Bismuth, Cadmium, Gallium, Germanium, Selenium, Silicon, Sulfur, Tellurium, Zinc.