CERTIFICATE OF ANALYSIS
This is to certify that we have inspected the quality of the above mentioned goods found the result of inspection as followings:
SodiumMetasilicatePentahydrate （Granular） | Quantity:25 MT | LOT NO.:17030500 |
Manufacturing Date: 2017-05 | 2019-05-30 | Expiry Date |
Test Standard (HG/T2568-08) | Test Result | Checking Item |
28.7-30.0 | 29.01 | (Na2O%) SODIUM OXIDE |
27.8-29.20 | 29.08 | 2Silica SiO % |
≤100ppm | 58 | (Fe(ppm |
≤0.05 | 0.08 | Water Insoluble% |
0.80-0.97 | 0.95 | (Bulk density(g/cm3 |
≥90.0 | 97 | Particle Size（16-30mesh）% |
≥80 | 87 | Whiteness% |
12-13 | 12.50 | PH of 1.0% Solution |
72.2℃ | 72.2℃ | Melting Point |