1.Precipitated Silicon dioxide(SiO2) 2.powder and granular 3.Cas no.:7631-86-9 4.Powder, granular 5.ISO certificate

Precipitated Silicon dioxide(SiO2) 

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.

Specification:

Item	Specification
Appearance	SS-160	SS-180
Loss on drying 105°C 2h %	4.0—8.0	4.0—8.0
Lgnition loss   1000°C  %	≤7.0	≤7.0
PH value	5.0—8.0	5.0—8.0
BET specific surface area  m2/g	160—175	175—195
DBP absorption value  cm3/g	2.00—3.50	2.00—3.50
SiO2 %	≥90	≥90
Na2SO4 %	≤1.50	≤1.50

Precipitated Silicon dioxide(SiO2)