Granular precipitated silica

Basic information

Product name: Precipitated Silica
Molecular formula: SiO2.nH2O
CAS code: 7631-86-9
Customs code (HS code): 2811.2200

Applications

shoes sole rubber
Rice roller rubber
Electric cable
Rubber belt
All other common rubber products

Features

&: Granular silica to protect environment, reducing powder dust, easily transfer, high mixing speed, no dusty, no bubble, obviously to improve compound rubber performance.
&: With particular physical and chemical properties.
&: Widely used as reinforcing additive of compound rubber
&: Improving tensile strength and abrasive resistance of vulcanized rubber.
&: Better enhancer on the mechanical strength and tearing force of vulcanized rubber than carbon black.
&: Reducing the rubber dosage to lead whole cost reduction.
&: High dispersion ability in compound rubber

Specifications:
Appearance white granular shape
SiO2(content) % Min.93
PH value 6.0-7.0
Fe2O3 mg/kg Max.500
DBP oil factor cm3/g :2.0-3.0
45µm Residue on sieve %: Max.1.0
BET specific surface area m2/g :160-190
Na2SO4 %: Max.1.0
Compacted density g/l :340
Heating loss(105°C) %: 4.0-7.0
Loss on ignition(1000±25°C) %: 4.0-6.0

About HISILCO

15 years experiences in silica business. Professional Manufacture, Factory directly sale, Advantage price, ISO9001 approval.

Production Application:

1. shoes sole, compound rubber, powder & granular precipitated silica: Produced according to WELLINK WL-180,WL-180GR.
2. Tyre powder & granular precipitated silica: Produced according to EVONIK VN3, VN3GR.
3. Animal feeding additive, big particle size at 40-60um, low Fe content
4. High grade super fine silicon silica: Produced according to EVONIK Sipernat 236, Rhodia Zeosil 142. High transparent, low yellowdish