Fused Silica (Fused Quartz), application refractory ,foundry, casting etc.

1st type :

SiO2 99.8% Min

Fe2O3 100ppm Max

Al2O3 100ppm Max

Na2O 30ppm Max

K2O 30ppm Max

CaO 30ppm Max

Moisture - 0.3% max

Size distribution: 0.125-0.3mm, 0.25-0.4 mm , 0.4-0.6mm etc. grain sized

2nd type :

SiO2 99.8% Min

Fe2O3 150ppm Max

Al2O3 200ppm Max

Na2O 50ppm Max

K2O 50ppm Max

CaO 50ppm Max

Moisture - 0.3% max

Size distribution: 0-45 um (D=12 um) powder sided

Application: Casting, Foundry, Refractory