Product name: Sodium Tetraborate Pentahydrate Molecular formula: Na2B4O7�??�?�·5H2O Analysis items Standard Appearance White crystalline B2O3 47.76%-49.35% Na2B4O7�??�?�·5H2O 99.99%-103.24% Na2O 21.25%-21.95% SO4 135 ppm max Cl 70 ppm max Fe 5 ppm max Insoluble matter in water 150 ppm max
