Item | Standard | |
Chemical ingredient | Fe(%) | ≤0.02 |
Na(%) | ≤0.02 | |
Ca(%) | ≤0.02 | |
Metal impurities (ppb) | ≤30 | |
Particle size | D10(μm) | ≥1 |
D50(μm) | 4.0-7.0 | |
D90(μm) | ≤15 | |
Dmax(μm) | ≤50 | |
Moisture(%) | ≤0.04 | |
PH value | 9.5-11.5 | |
Tap density(g/cm3) | ≥2.1 | |
Specific surface area (m2/g) | 0.4-0.70 | |
XRD | Single phase | |
SEM | See the picture, no big differences in morphology |