Silica (Silicon Dioxide) SiO2

Description

I sell 2 types of Silica.  Please read the description and look at my other listing as well to determine which one would better meet your needs.
Applications:
SIL-CO-SIL
®
products are produced from high purity
silica which is precision ground to top sizes ranging
from 40 to 250 microns. These ground silicas are in
herently inert, white, bright, have low moisture and
are at least 99.4% SiO2.
Special processing techniques assure controlled
particle size distribution, which means elimination
of excessive coarse and fine particles. This makes
SIL-CO-SIL
®
ground silicas ideal for plastics and rub
ber, polishes and cleansers, paints, ceramic frits and
glazes, fiberglass, precision castings and more.
Chemical Analysis
SiO2  Silica (%)                   99.5
Fe2O3 Ferric Oxide(%)         0.022
Al2O3  Aluminum Oxide        0.30
TiO2 Titanium Dioxide           0.01
CaO Calcium Oxide               0.02
MgO Magnesium Oxide         0.01
NaO Sodium Oxide                0.01
K2O Potassium Oxide            0.01
loss on Ignition                       0.02
pH Value                                 7.0
Physical Properties
Specific Gravity                               2.65
Mohs Hardness                               7.0
Reflectance (%)                              89
Yellowness Index                             3.8
% Thru 325 Mesh                           95.5
% Thru 200 Mesh                           99.7
This listing is for 4 pounds of product, packaged in 2 plastic bottles.
Shipping: Allow 1 business day for handling. Item ships Priority Mail.