Bronze or grey coloured soda lime silicate glass

摘要: A bronze or grey coloured soda-lime-silicate glass, in particular for the production of flat (window, plate, sheet) glass by casting method float method, having a base composition SiO2: 66 - 74 % weight Al2O3: 0 3 TiO2: 0.15 CaO: 7 12 MgO: 2 6 Na2O: 10 15 K2O: BaO: 0.04 SO3: 0.1 0.4 is characterised that it contains colouring additives following amounts: Fe2O3: 0.0 0.45 V2O5: 0.5 MnO2: NiO: 0.05 CuO: CoO: 0.008 where percentages constituents forming total 100.