Item |
Specification |
Sodium fluorosilicate |
99.0% Min |
Loss of weight on drying at 105℃ |
0.3% Max |
Free acid (as HCI) |
0.1% Max |
Sulphate (SO42-) |
0.25% Max |
Iron (Fe) |
0.02% Max |
Water-insoluble matter |
0.50% Max |
Chloride (Cl-) |
0.15% Max |
Particle size through 250μm (60mesh) sieve |
90% Min |