Lead oxide doped borosilicate glasses, in chemical composition 20SiO2-xPbO-(15+x)B2O3-5WO2-10ZnO-(50-2x)Na2O have been prepared using melt-quenching technique. The samples were examined by using Philips Analytical X-ray diffraction system in order to check the amorphous nature of the investigated glass samples. The effect of boron and lead oxides on glass transition temperature was carried out using Differential Thermal Analysis measurements (DTA). The results of DTA showed that both melting and glass transition temperatures decrease with the increase of lead and boron oxides. Density and its related parameters have been determined as a function of lead content. The optical properties of the glass samples have been obtained using UV-VIS measurements. The optical parameters, such as optical band gap, Urbach energy, refractive index, and electronic polarizability were estimated to study the effect of lead on the optical properties of prepped glasses.
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