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Product List / Silica

Silica / SiO2

High-purity synthesis spherical silica

  • ● Spherical particles characterized by sharp particle size distribution.
  • ● Average particle size can be controlled from 0.2 to 2.0 µm as desired.
  • ● High purity, fewer ionic impurities, non-porous surface, and excellent dispersibility.
  • ● Two levels of purity are available: SO-C type (regular) and SO-E type (low-alpha beam).
    In particular, the SO-E type is the grade compatible with chips (e.g. memory chips).

High-purity products use the low-alpha beam grade, specialized for chips, such as memory.
As regular products do not contain ionic impurities, they can be used for electronic devices.

  • Particle diameter line-up /
    Purity (impurity) data
  • Particle size distributions /
    SEM images
  • Products & App

Application

  • ● Electronic devices
    Filler for Epoxy molding compound,
    fillers for printed circuit boards
  • ● Resin filling materials
    Engineering plastics, filler for paint,
    filler for precise plastic molding
  • ● Ceramics molding products
  • ● Anti-blocking materials

Smart Phone image

● Particle diameter line-up

SO-C type regular grade

Product name Median particle diameter (μm) Specific surface area (m2/g)
SO-C1 0.2~0.4 10~20
SO-C2 0.4~0.6 4~7
SO-C4 0.9~1.2 3~6
SO-C5 1.3~1.7 3~5
SO-C6 1.8~2.3 1.5~2.5

SO-E type  low-alpha beam grade

Product name Median particle diameter (μm) Specific surface area (m2/g)
SO-E1 0.2~0.4 10~20
SO-E2 0.4~0.6 4~7
SO-E4 0.9~1.2 3~6
SO-E5 1.3~1.7 3~5
SO-E6 1.8~2.3 1.5~2.5

● Purity (impurity) data

    SO-C type
regular grade
SO-E type
low-alpha beam grade
Composition SiO2(%) > 99.8 > 99.9
Moisture content(%) < 0.05 < 0.05
Fe(ppm) < 500 < 20
Al(ppm) < 700 < 100
U(ppb) - < 0.3
Ionic
impurities
Na+(ppm) < 1.0 < 0.5
K+(ppm) < 1.0 < 0.5
Cl-(ppm) < 2.0 < 1.0
Extraction
properties
EC(μS/cm) < 15 < 6
pH 4.2~5.0 4.5~6.0

SO-C1 / SO-E1

SO-C1/SO-E1 Graph

SO-C1/SO-E1 image

SO-C2 / SO-E2

SO-C2/SO-E2 Graph

SO-C2/SO-E2 image

SO-C5 / SO-E5

SO-C5/SO-E5 Graph

SO-C5/SO-E5 image

  • ※ ADMANANO is a registered trademark of Admatechs Co., Ltd.
  • ※ The figures presented on this page represent typical values only, not guaranteed values.
  • ※ The particle sizes presented in this material are values that we obtained by using a laser diffraction particle size analyzer.For this reason, the products presented herein contain a very small amount of very fine and coarse particles.

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Processing technology

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cutting technology

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