| Catalog Number |
ACM12039882 |
| CAS Number |
12039-88-2 |
| Structure |
 |
| Synonyms |
TUNGSTEN SILICIDE;TUNGSTEN DISILICIDE;TUNGSTEN SILICIDE, -325 MESH;TUNGSTEN SILICIDE (99.7%-W);TUNGSTEN SILICIDE, 99.995% (METALS BASIS EXCLUDING MO), MO ;Tungsten silicide, 99.995% (metals basis excluding Mo), Mo ;Tungsten silicide, 99.5% (metals basis) |
| IUPAC Name |
bis($l^{3}-silanylidyne)tungsten |
| Molecular Weight |
240.02 g/mol |
| Molecular Formula |
Si2W |
| Canonical SMILES |
[Si]#[W]#[Si] |
| InChI Key |
WQJQOUPTWCFRMM-UHFFFAOYSA-N |
| Melting Point |
900ºC |
| Flash Point |
N/A |
| Purity |
96% |
| Density |
9.88 g/cm³ |
| Appearance |
Blue-gray powder or pieces, no odor. |
| Application |
Tungsten silicide serves a crucial role in microelectronics and microelectromechanical systems due to its properties as a blue-gray, very hard, electrically conductive ceramic material. It is commonly utilized as a contact material to enhance conductivity and accelerate signal transmission, often being applied as a shunt over polysilicon lines. Additionally, tungsten silicide functions as a barrier layer between silicon and other metals and is used for oxidation-resistant coatings. While insoluble in water, it is reactive with substances like strong acids and fluorine. Its versatility extends to replacing earlier tungsten films, leveraging its formation at high temperatures and its significant use in various technological applications. |
| EC Number |
234-909-0 |
| Exact Mass |
239.90500 |
| Packaging |
10 g; 100 g; |
