PRODUCTS

Fumed silica


Classification:

INTRODUCTION

Product name: Fumed silica, also known as white carbon black
Molecular formula:SiO2
Product standard: GB/T 20020-2013

PRODUCT DETAILS


Product name: Fumed silica, also known as white carbon black

Molecular formula:SiO2

Product standard: GB/T 20020-2013

Product name

Project Requirements (Category A)
Outward appearance Fluffy white powder
Nitrogen adsorption specific surface area/(m2/g) Typical value ±10
Ignition loss/% ≤1.5
Silica content/% ≥99.9
Total aluminum content/(mg/kg) ≤20
Total titanium content/(mg/kg) ≤20
Total iron content/(mg/kg) ≤20
Carbon content/% ≤0.2
Chloride content/(mg/kg) ≤50
PH value of suspended solids 3.9~4.5
Volatile matter at 105℃/% ≤1.5
Tap density/(g/dm3) 30~60
45um sieve residue/(mg/kg) ≤100

Uses: Mainly used in tires, translucent and highly transparent rubber products and rubber soles.

Notice:

Fumed silica has strong water absorption, and the product should be moisture-proof and pollution-proof.

Packaging, storage and transportation:

1. Packed with more than three layers of kraft paper valve pockets, and automatically packed with a vacuum packaging machine;

2. The net content of each bag is (10±0.1) kg;

3. The valve opening of the paper bag is neatly folded, and the whole bag is a regular and full rectangular parallelepiped, and the bag does not deform significantly under the action of slight external force;

4. The product stacking layer limit is 20 layers. When transported in the form of pallets, stack 10 layers, and use stretch film for integral winding and sealing;

5. The product should be stored and transported as non-dangerous goods, and should be stored in a cool and dry place. Pay attention to moisture and pollution during transportation.

Keywords:

Fumed silica

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