High purity Silicon oxide / Silicon dioxide / SiO2 / Silica quartz powder 99%-99.999%

Brief introduction

Product name: Silicon oxide SiO2 Purity: 99%-99.999% Particle size: 20-30nm, 50nm, 100nm, 45um, 100un, 200um, etc Type: hydrophilic, hydrophobic Color: white powder Bulk Density: <0.10 g/cm3 True Density: 2.4 g/cm3 Ultraviolet Reflectivity:>75%.

Features:

Nano-silica particles according to their structure are divided into two types: P-type (Porous particles ) and S-type (Spherical particles). P-type nano-silica surface contains a number of nano-porous with the pore rate of 0.611ml /g; therefore, P-type has much larger SSA comparing to S-type (See US3440). US3436 is S-type and its SSA is ~170-200m2/g. Further more, P-type ultraviolet reflectivity is >85% , S-type: >75%.

Specificaiton
Product
Silicon oxide
Particle size
100um
Quality
GB/T 3185-2016
Quantity:
5000.00kg
Batch No.
18120612
Expiry Date
Dec. 05, 2020
Date of Manufacturing:
Dec. 06, 2018
Date of Test:
Dec. 06, 2018
Test Item
Specification
Results
Appearance
White powder
White powder
SiO2
>99.99%
99.996%
Al
≤30 ppm
26.48 ppm
Ca
≤6 ppm
5.6 ppm
Cu
≤1 ppm
0.11 ppm
Fe
≤2 ppm
1.87 ppm
K
≤2 ppm
1.48 ppm
Mg
≤1 ppm
0.53 ppm
Na
≤5 ppm
4.69 ppm
Ni
≤0.5 ppm
0.03 ppm
Mn
≤0.3 ppm
0.11 ppm
Ti
≤4 ppm
3.68 ppm
Conclusion:
Comply to the enterprise standard

Test Methods:

1. Transmission electron microscopy (TEM) method, nano-silica particle has small size, narrow particle size distribution. 2. BET method, nano-silica particle has large specific surface area. 3. Infrared spectroscopy method, nano-silica particle exists a large number of hydroxyl groups and unsaturated residual bonds on its surface, and forms the deviation from the steady state of the silicon oxide structure. 4. Cary-5E spectrophotometer testing method, nano-silica particles--high reflectivity to long wave and visible light about UV. 5. Omnisorp100CX surface area and porosity analyzer, P-type nano-silica surface contains a number of nano porous with the pore rate of 0.611ml /g.

Application:

1 Rubber modified, sealant ceramic toughening modification, adhesives, functional fiber additive, plastic modification, paint aging additives; 2 Ceramics, nano ceramic, composite ceramic substrate; 3 Polymer: can increase the thermal stability and anti-aging polymer; 4 Flame retardant materials and coatings, high grinding medium, cosmetic products; 5 In cluster butyl benzene and chlorinated polyethylene adding a small amount of nano SiO2produce color rubber tenacity, elongation, strength, flexural performance and ultraviolet resistance and thermal aging performance and achieve or exceed epdm; 6 In traditional coating adding a small amount of nano silicon oxides, good solve the suspension stability, thixotropy and poor, poor finish.

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