Undensified Silica Fume USF 850
Very Small Particle Size.
Strong Absorbability.
High Purity.
Test Item | Typical |
SiO2 (%) | 88.2 |
MgO (%) | 0.33 |
Elemental Silicon (%) | 0.09 |
SO3 (%) | 0.84 |
CL (%) | 0.002 |
Free CaO (%) | 0.91 |
PH | 7 |
Moisture (%) | 0.6 |
LOI (%) | 2.09 |
Specific Surface (BET) (m2/g) | 21.38 |
Activity Index (%) | 108 @ 7days |
Retained on 45-μm (No.325) (%) | 1.52 |
Fluidity (cm) | 19.6 |
Improve compressive strength, bond strength, abrasion resisitance, reduce permeability in construction application.
As dispersant for chemical products, micro silica instead of mica or diatomite to prevent fertilizer particles caking. Making potassium silicon compound fertilizer, protect the soil from erosion or deterioration.
With strong adsorbability and large specific surface, as anti-caking agent or pellet binding agent improve economic performance.
Construction
Fertilizer
Pesticide
Extinguishant
Pellet binder
Insulating material, waterproof material, paint, coating, printing industry, etc.