Fused Silica /electronic Materials Grade

Qmin-SIL Series Fused Silica is made of high purity Chinese crystal Silica by electrically fusing (fusing temperature 1800-2000â??) to amorphous Silicon dioxide, then by alumina ball mill grinding, unique air classifying, screening, magnetic and other impurity seperating techonology, designed for EMC and other electrical application.

Special Features:
Very low coefficient of thermal expansion
Excellent conductivity and Electrical property
High Chemical Resistance
Pure(high SiO2 content, low Fe, Na, K & Ti)
High Whiteness
High Hardness, good wearable
Main Applications:
EMC (Epoxy Molding Compound) Filler, coating powder
Electrical Insulators
Others

GRADE
(1). QMin-F/S-E200 d50: 20Micron +/-1
(2). QMin-F/S-E325 d50: 15Micron +/-1
(3). QMin-F/S-E600 d50: 9Micron +/-1
(4). QMin-F/S-E800 d50: 6Micron +/-1
Remark: the particle size is from d50 2-50um, the PS distribution is controllable
Chemical Composition:
SiO2: 99.85%Min. (Typical: 99.91%)
AL2O3: 800ppm Max. (Typical: 300-500ppm)
Fe2O3: 80ppm Max. (Typical: 25ppm)

Extracted Water:
Na+ 3ppm Max.
Cl- 2ppm Max.
Electric Conductivity: 3um/cm

Physical Properties:
Appearance: White Powder
Specific Gravity: 2.2
Hardness( Mohs): 6.0
PH: 6.5-8
Whiteness: 96 Min.
Igniting Loss: 0.1%Max.

We can offer further product information and our technical experience if you need, and also are in position to supply specially designed product

as customer requirement.