Tungsten(IV) sulfide
From Wikipedia, the free encyclopedia
| Tungsten(IV) sulfide | |
|---|---|
| Image:Tunsgten(IV) sulfide.jpg | |
| General | |
| Other names | tungsten disulfide tungstite |
| Molecular formula | S2W |
| Molar mass | 247.98 g/mol |
| Appearance | blue-grey powder |
| CAS number | [12138-09-9] |
| Properties | |
| Density and phase | 7.500 g/cm3, solid |
| Solubility | insoluble in water dissolves with decomposition in nitric acid + hydrofluoric acid |
| Melting point | 1250 °C (decomposes) |
| Boiling point | decomp. |
| Hazards | |
| EU classification | not listed |
| NFPA 704 |    |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
|
Tungsten(IV) sulfide is the chemical compound with the formula WS2. It occurs naturally as the mineral called tungstenite. This material is a component of certain catalysts used for hydrodesulfurization and hydrodenitrification.
WS2 adopts a layered structure related to MoS2, with W atoms situated in trigonal prismatic coordination sphere.
[edit] External links
 |
This inorganic compound-related article is a stub. You can help Wikipedia by expanding it. |
