Product PKG 45Description:A 3.0 ratio sodium silicateAppearance: A nearly clear to opalescent liquid.Na2O(±0.5%) 9.63SiO2 (±0.7%) 28.88Weight Ratio, % SiO2, % Na2O 3.0(±0.1%)Solid(±0.8%) 38.5Density, @ 20°C °Baume 45 ± 0.7