Eco-Sil Specifications

Eco-sil™ capsulesEco-SilTM is amorphous biogenic silica with high purity and surface area, harvested from rice hulls. It is an ecofriendly alternative to fumed (pyrogenic) silica, manufactured in the U.S. It has been “Generally Recognized as Safe” GRAS) by the FDA; it contains no heavy metals. It has 3X the bulk density of fumed silica, resulting in decreased shipping costs, easier handling on the manufacturing floor and lower dusting.

Other characteristics include:

Submicron particle size

Hydrophilic surface

Product Data Sheet

  Eco-Sil Fumed Silica
Silica Nanoparticles
Low Cost & Renewable
Efficient Manufacturing
Ecofriendly Production
 Characteristic Eco-Sil™

BET Surface Area (m2/g)

260 – 320

pH (4% Aqueous Slurry)

 6.5 – 7.0

325 Mesh Residue (45μm)

 < 0.025%

Bulk Density (lb/ft3)


Loss on Heating (110°C)

 < 2.3%

Loss on Ignition (1000°C)

< 2%

Specific Gravity


Refractive Index


X-Ray Form


SiO2 Content

 > 99.8%

Oil Adsorption

150g / 100g Oil

Average Particle Size

 0.3 -10μm




Material Safety Data Sheet and Product Sales Specificationsfor Eco-Sil™ may be obtained by contacting the VP of Sales & Marketing: