GREEN GLASS Russian patent published in 1996 - IPC

FIELD: glass industry. SUBSTANCE: green glass has, wt.-%: silicon oxide (SiO₂) 65-75; sodium oxide (Na₂O) 10-15; magnesium oxide (MgO) 1-5; calcium oxide (CaO) 5-15; ferric oxide (Fe₂O₃) 0.53-0.96; ferrous oxide (FeO) 0.15-0.33; cerium oxide (CeO₂) 0.2-1.4 or green glass has, wt.-%: silicon oxide (SiO₂) 65-75; sodium oxide (Na₂O,) 10-15; magnesium oxide (MgO) 1-5; calcium oxide (CaO) 5-15; ferric oxide (Fe₂O₃) 0.5-0.9; ferrous oxide (FeO) 0.15-0.33; titanium oxide (TiO₂,) 0.02-0.85, and cerium oxide (CeO₂.) 0.1-1.36. Green glass can contain additionally, wt.-%: potassium oxide (K₂O) up to 4 and aluminium oxide (Al₂O₃.) up to 3. Ratio FeO : Fe₂O₃ = 23-29%. UV-radiation transmission is 33-33.6%. Glass is used in automobile industry. EFFECT: enhanced quality of glass. 7 cl, 4 tbl