Silica for Silicon Rubber 
Technical Parameters： | Type | YRSIL-140C | YRSIL-160C | YRSIL-180C | | Appearance | Super-fine Powder | | BET specific surface area ㎡/g | 130-150 | 150-170 | 170-190 | | Silica(dry basis) % | ≥ 96 | | Heating loss (105°C) % | 4.0-8.0 | | Loss on ignition (1000±25°C)% | ≤7.0 | | PH-value(10%aqueous solution) | 5.0-8.0 | | DBP Oil Absorption Value cm3/g | 2.0-3.5 | | 45um sieve Residue % | ≤ 0.5 | | Soluble salt (Na2SO4)% | ≤ 1.5 | | Cu mg/kg | ≤ 30 | | Mn mg/kg | ≤ 50 | | Fe mg/kg | ≤ 300 | | Average grain diameter d50 μm | 12-16 |
STANDARD: HG/T 3061-2009
CAS NO: 112926-00-8(7631-86-9)
EINECS No: 231-545-4
Product Description: The product has special physicochemical properties, thus it is the best transparent reinforcing additive. It can greatly increase the anti-aging property, rebound resilience and deformation resistance and other performances. | 
