Silicon Dioxide / silica / white carbon

silica(white carbon)

Specification:

CAS No.: 7631-86-9;
Chemical name: Silicon Dioxide;
Appearance: white powder;
Loss on drying(105°C,2h, %): 4.0—8.0;
Lgnition loss(1000°C,%): ≤7.0;
PH value: 6.5—8.0;
BET specific surface area(m2/g): 165—185;
DBP absorption value(cm3/g): 2.00—3.00;
SiO2 %: ≥90;
Na2SO4 %: ≤2.50.

General description: Precipitated silica with special physic-chemical

properties, work as reinforcing transparent fillers highly valued in

formulation of rubber-based blends. In particular, They lead to

enhanced tensile strength, tear strength and abrasion resistance and

increase hardness of vulcanized rubbers. On the other hand, They reduce

consumption of rubbers and therefore reduce the cost.