Items
Unit
Chemical
composition
SiO2
%
99.5 min
99.8%
Al2O3
ppm
500 max
300
Fe2O3
100 max
50
Na2O
150 max
80
K2O
Loss on ignition
0.08
Melting point
℃
1713
Density
g/cm3
2.65
---
7.00
mesh
4/10, 10/20, 20/50, 50/100
Application: Refractory, Glass, Electronic industry