Comparative Study of Optical and Spectroscopic Properties of Lead and Bismuth on Borosilicate Glasses

The aim of this paper is comparative study of lead and bismuth on optical and spectroscopic properties of borosilicate glass. Glasses samples were prepared from reagent grade powders of SiO2, H3BO3, CaO, Na2O, Bi2O3 and PbO. The glasses containing in formula (50-x)SiO2:xRmOn:30B2O3:10CaO:10Na2O (where x = 2 to 10 mol% and RmOn = Bi2O3 and PbO). It has been found that the properties of Bi-glass such as refractive index, density are better than Pb-glass. Moreover, in visible region, Bi-glass show good transparent more than Pb-glass. From the molar volume result, indicate that more average atomic spacing of Bi-glass compared with Pb-glass under same glass formula and preparing condition.