Glass spheres
ALDRICH/440345
CAS Number: 65997-17-3
Empirical Formula (Hill Notation): O2Si
Molecular Weight: 60.08
EC Number: 266-046-0
MDL Number: MFCD00147032
Linear Formula: O2Si
Product Type: Chemical
| density | 1.1 g/mL at 25 °C (lit.) |
| form | powder |
| grade | high-purity grade |
| InChI | 1S/O2Si/c1-3-2 |
| InChI key | VYPSYNLAJGMNEJ-UHFFFAOYSA |
| matrix | Silica |
| matrix active group | silica |
| mean particle size | 9-13 μm |
| SMILES string | O=[Si]=O |
| suitability | suitable for acidity or alkalinity (alkalinity < 0.5 meq/g ASTM D 3100) |
| surface area | 125 m2/g |
| technique(s) | LPLC: suitable |
| Application: | Low density filler for coatings and plastics. |
| Application: | Silica glass spheres are low density filler for coatings and plastics. Silica was used in synthesis of silicalite. Silica was also used to assist the catalytic growth of oxide and nitride nanowires. |
| Features and Benefits: | Light weight, crush-resistant filler. Imparts dimensional stability, reduces warpage, reduces plastic melt viscosity and provides multidirectional orientation in reinforced composites. |
| General description: | Silica is a naturally occurring material in minerals, flint and in some plants in crystalline phase. Silica used in industries is in synthetic form. Surface area, pore volume, pore size and particle size are independently controllable to some extent. The crystalline silica may be classified based on atmospheric pressure as: a. Quartz = 1143K b. Tridymite 1143 - 1743K c. Cristobalite = 1743, over 1973K it forms amorphous vitreous silica glass. |
| Packaging: | 100, 500 g in poly bottle |
| Physical form: | Hollow, spherical non-porous glass beads. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Density | 1.1 g/mL at 25 °C (lit.) |
| UNSPSC | 23201100 |