Product description
Item Result SiO2 , %≥ 92.6 AL2 O3 , %≤ 1.0 Fe2 O3 ,%≤ 1.0 CaO+MgO,%≤ 1.5 K2 O+Na2 O,%≤ 1.5 C, %≤ 2.5 alkali , %≤ 3.0 PHvalue , %≤ 3-4 particle size (45umscreen residue),%≤ 3.0 Specific surface area ,square meter/g%≥ 10-15 Water,%≤ 2.0