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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