Character: Precipitated silica features wear-resistance, high-reinforcement. It can greatly strengthen connection of steel lines inside tyre, increase coherence of rubber, decrease tyre's rolling resistance. So it can significantly improve tyre's wearability and cecurity.
Uses: Used for tyre industry.
Technical standard: HG/T 3061-1999
CAS: 112926-00-8 (7631-86-9)    EINECS: 231-545-4

Technical parameter

Type	TOND-175Gr
Appearance	White Granule
Heating loss (105°C) %	4.0-7.0
Ignition loss (1000±25°C) %	4.0-6.0
SiO2 Content %	≥92
PH	6.0-7.0
Fe2O3 mg/kg	≤500
DBP Absorption cm3/g	2.0-3.0
45μm Sieve residue %	≤1.0
BET Specific surface area m2/g	160-190
Na2SO4 %	≤1.0
Sieve residue (200mesh) %	≥90
Sieve residue (40mesh) %	≥80
Tapped density g/l	320-340