Silicon dioxides

Precipitated silica used for rubber industry

Features:TOND-180 is applied in rubber products to increase tensile strength, elasticity and lancination strength.
Application range:common rubber products,such as rubber sole,rubber roller and bicycle tyre
Executive standard:HG/T 3061-1999
CAS No.:112926-00-8(7631-86-9)
EINECS No.:231-545-4
Technical parameters

Specification TOND-180 TOND-180Gr
Appearance white powder white granule
Heating loss(105°C) % 4.0-7.0 4.0-7.0
Loss on ignition(1000±25°C) % 4.0-6.0 4.0-6.0
SiO2(content) % ≥92 ≥92
PH value 6.5-7.5 6.5-7.5
Fe2O3 mg/kg ≤700 ≤700
DBP oil factor cm3/g 2.5-3.0 2.0-2.5
45祄 Residue on sieve % ≤0.1 ≤0.1
BET specific surface area m2/g 170-200 170-200
Na2SO4 % ≤1.0 ≤1.0
Residue on sieve(200 meshes) % - ≥90
Residue on sieve(40 meshes) % - ≥80
Compacted density g/l 270-290 330-350

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