Development of compositions of uviol glasses with elevated radiation and optical resistance

From Decolorization to Solarization of Historical Glass: A review

“…This composition may also indicate that they have been made with mixed alkali rather than only natron salt as a source of alkali. The impact of this high amount of alkali on glass solarization have been explained by Lityushkin et al(1995) [35] who found that the increase in the total amount of alkaline-earth oxides at the expense of CaO + MgO decreases solarization of glass of (SiO 2 -Na 2 O-K 2 O-CaO-MgO) system (Table 2). The solarized glasses are characterized by high manganese content (MnO avg.…”