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 |