Appearance: White granules

Specifications:
SiO2: 99.90%
Original particle size (nm): 15-30
Mean particle size (D50) um: 4.0
Drying Loss (105 degree, 2h): 4.0 larger
Heating Loss (1000 degree, 2h): 5.0 larger
PH Value: 5-7
DOP absorption (mL / 100g): 300
Specific surface area Acreameter: 180-240m2 / g
Sieve residue (45um): 0
Density (g / cm3): 0.07-0.10
Package: 10kg / bag