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Na2SiO3 H2O quality standards(HG/T2568-94) ITEM NATIonAL QUALITY INDEX TESTING RESULTSodium oxide(Na2O)% 50.50+-1.00 51.44Silica(SiO2)% 46.00+-1.00 46.43Iron(Fe)% Less than200ppm 77Bulk density(g/cm3) 1.05-1.35 1.23 Particle Size(20-65mesh)% More than93.0 99.66Whiteness More than 85 Na2SiO3 9H2O quality standards(HG/T2568-94) ITEM NATIonAL QUALITY INDEX TESTING RESULTSodium oxide(Na2O)% 28.5-30.0 28.9Silica(SiO2)% 27.3-29.2 27.7Iron(Fe)% Less than 0.03 0.005Water-insoluble substances% Less than 0.2 0.05Whiteness More than 75 85Na2SiO3 5H2O quality standards(HG/T2568-94) ITEM NATIonAL QUALITY INDEX TESTING RESULT
