(800) 473-4237 / 508-992-6464 sales@focenter.com





ÅngströmSphere™ silica spheres are manufactured using our own proprietary technologies which allow the essential properties of amorphous silica to be combined with unique control of duplication, both in form and particle size.

Angstromsphere is a high purity, amorphous silica powder with a very well defined spherical and uniform shape.  Sizes can be produced from 100nm up to 2micron and tailored to the customers specific application.  Over the years our silica spheres have been used in biomedical, photonic, electronic, ornamental and plastic applications as well as many other customer specific proprietary applications.

Angstromsphere is available as a free flowing dry powder or dispersed in water.  Surface modifications are possible.  We sell the silica spheres in 100gram and Kg quantities; please contact us today to discuss your application.

Physical Properties

  • Density Non Porous-Approximately 2.0 grams/cc
  • Structure Amorphous
  • Purity >99.9%
  • Alpha Emitters Very Low
  • Dielectric Constant ≤ 3.8
  • CTE 0.6ppm/°C
  • Refractive Index ~1.38 - 1.46
  • Surface Area ~2-6 m²/g


  • Filler for High Performance polymeric systems
  • Antislip agent for plastic film production
  • Nanocomposite filler
  • Ceramic and glass forming applications
  • Biomedical applications
  • Chemical Mechanical Polishing (CMP)
  • Particle size standards
  • LCD spacers
  • Light diffusers
  • Chromatography
  • Photonic crystals and synthetic opals
  • Research and development

Shape:  Perfectly spherical
Size Range Capability: · 0.1 μm to 2 μm
Size Distribution: Particle Size
Standard Deviation <10%
Forms Supplied: Dry Form, In Dispersions of Water or Alcohols and others

Standard Powder Description:
· Selected from standard sizes listed above.
· Supplied in dry form with no surface modification
Custom Synthesis:
· Special sizes, Surface modifications


  • Affordable silica powder for production applications
  • High Purity
  • Uniform Particle size
  • Controllable refractive index


Kelly Barker


Direct: 508-717-8426 or

800-473-4237 Ext. 8426

Mobile: 508-264-5600
Email: KBarker@focenter.com

Twitter: @ImprintExptFOC
Twitter: @OKPExpert_FOC
Twitter: @PolymerExprtFOC

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