Society of Glass Technology · [Sheffield] · leaf 435
20% Fig. 1. (a) The mean refractive indices of fused amorphous B203(nD 1*462), and fused Si02 (nD T4585) or alkali silicate glass(nD variable) were raised by the solution of metallic oxides. The … action was not proportional to the molecular weight of thedissolved oxide; for example, Li20, ZnO, BaO, and PbO, eachequivalent to 40 per cent, of BaO * in 100 per cent, of B203,* * Presumably 40 parts by weight of BaO per 100 parts of B203 or ofglass.—Ed. GLASS : MANUFACTURE AND PROPERTIES. 5…
Glass
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