Index name | Date | Result | |
Apprance | calcium carbonate White | ||
Whiteness | ≥99.5 | 99.8 | |
CaCo3 | ≥97 | 98 | |
PH(10% suspension liquid) | 9.0-10.5 | 9.0-9.5 | |
volatile matter105°C | ≤0.70 | 0.40 | |
insoluble matter in hydrochloric acid | ≤0.2 | 0.18 | |
settling volume ML/g | ≥2.4 | 2.8 | |
residue on sieve(45um) | ≤0.3 | 0.15 |