Items | Standard |
K2O | 0.1% min |
Na2O | 0.1% max |
Al2O3 | 0.2% max |
Fe2O3 | 0.30% max |
TIO2 | 0.05% max |
SiO2 | 50%----53.5% |
CaO | 40%----43% |
MgO | 4.0% max |
Loss on Ignition | 2.0% max |
Particle size 325 mesh 325 | 95% min |