Silicon Dioxide (amorphous), SiO2, 99.99% 4N High Purity Powder
- Product Number: PO3702 (100 g), PO3703 (1 kg)
- Synonym: Silica, Silicic anhydride, Silicon dioxide amorphous, Silicon dioxide, Amorphous silica
- Formula: SiO2
- CAS Number: 7631-86-9
- Formula Weight: 60.08 g/mol
- Density: 2.196 g/cm³ at 25°C
- Melting Point: 1713°C
- Color: white powder
- Solubility: Insoluble in water
- Purity: 99.99% 4N (trace metal basis)
- Particle Size: <300 mesh
Applications
SiO2 (Silicon Dioxide or Silica) in its amorphous form is generally exploited in semiconductors to segregate conducting of differing areas. SiO2 has a high dielectric constant, mechanical resistance, and chemical selectivity. This selectivity makes it a good material in microelectronics and chromatography. Silicon Dioxide has been used in a wide range of applications such as resigns for separations, optical fibers, glasses, ceramics, and semiconductors.
Notes: More detailed product information including SDS, certificate of analysis (COA), lead time and volume pricing are available upon request.
Product Specifications |
Trace Metal Impurities (ppm) |
Fe | <10 | | Cr | <2 |
Mg | <2 | | Ti | <2 |
Ni | <10 | | Cu | <5 |
Analysis by ICP |
References
P.M. Dove, N. Han, A.F. Wallace, and J.J. De Yoreo. Kinetics of amorphous silica dissolution and the paradox of the silica polymorphs. PNAS, Vol 105(29), pgs 9903-9908, 2008.
A. Di Pomponio, A. Continenza, L. Lozzi, M. Passacantando, S. Santucci, and P.Picozzi. Electronic properties of crystalline and amorphous SiO2 investigated via all-electron calculations and photoemission spectroscopy. Solid State Comm. Vol. 95(5) Pgs. 313 -317, 1995