Silicon dioxide
ALDRICH/637238 - nanopowder, 10-20 nm particle size (BET), 99.5% trace metals basis
Synonym: Silica; Nanosilica; Silicon dioxide
CAS Number: 7631-86-9
Empirical Formula (Hill Notation): O2Si
Molecular Weight: 60.08
EC Number: 231-545-4
MDL Number: MFCD00011232
Linear Formula: SiO2
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 637238-50G
| assay | 99.5% trace metals basis |
| bp | 2230 °C (lit.) |
| bulk density | 0.011 g/mL |
| density | 2.2-2.6 g/mL at 25 °C |
| form | nanopowder |
| InChI | 1S/O2Si/c1-3-2 |
| InChI key | VYPSYNLAJGMNEJ-UHFFFAOYSA |
| mp | >1600 °C (lit.) |
| particle size | 10-20 nm (BET) |
| SMILES string | O=[Si]=O |
| Application: | Silica nanoparticles have been used : • To study the nonlinear optical properties of SiO2 nanocomposites in weak optical fields. • As a nanoadditive in nanocomposite calcium alginate fibers. • As dispersant in liquid polymethylsiloxane to exihibit unique optical non linearity in low intensity visible radiation fields. |
| General description: | The refractive index of silica nanoparticles is similar to polymeric coatings, so it finds several applications in the preparations of nanocomposites. Properties suh as, thermal resistance, electrical and mechanical are enhanced. Silica nanoparticles find uses in various fields of catalysts, pigment stabilization, electronics and sensors. |
| Packaging: | 250, 500 g in poly drum |
| Packaging: | 50 g in glass bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | nwg |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99.5% trace metals basis |
| bp | 2230 °C (lit.) |
| mp | >1600 °C (lit.) |
| Density | 2.2-2.6 g/mL at 25 °C |
| UNSPSC | 12352302 |