Substances |
Index |
|
First-class |
||
CaCO3(as dry basis) |
97% Min |
|
PH (10% solution) |
9.0-10.5 |
|
105℃ volatile |
0.7% Max |
|
Insoluble matter in HCl |
0.2% Max |
|
Sedimentation volume |
2.6 mL/g Min |
|
Fe |
0.1% Max |
|
Mn |
0.008% Max |
|
Whiteness |
90 Min |
|
Screening Remainder |
125µm sieve |
0.01% |
45µm sieve |
0.4% |