Properties of glasses based on compounds of Bi<sub>2</sub>O<sub>3</sub> and Na<sub>2</sub>B<sub>4</sub>O<sub>7</sub>
On the basis of compound Bi<sub>2</sub>O<sub>3 </sub>and Na<sub>2</sub>B<sub>4</sub>O<sub>7 </sub>samples of glasses of different concentration of initial substances in a mix are received. In obtaining samples of glasses the method preliminary solid-phase synthesis was used, thus some samples are received without such preliminary synthesis. The properties of glass samples - color, density, microhardness, refractive index vary depending on the technology of their manufacture.