12067-46-8
| Name | TUNGSTEN SELENIDE |
| CAS | 12067-46-8 |
| EINECS(EC#) | 235-078-7 |
| Molecular Formula | Se2W |
| MDL Number | MFCD00049703 |
| Molecular Weight | 341.76 |
| MOL File | 12067-46-8.mol |
Chemical Properties
| Definition | Lamellarstructured, dry, solid lubricant with exceptionally high temperature and high vacuum stability. Retains its lubricity to temperatures as low as 265℃. |
| density | 9.32 |
| RTECS | YO7714000 |
| form | Powder, 10μm |
| color | gray hexagonal, hexane crystals, crystalline |
| Water Solubility | Insoluble in water. |
| Exposure limits | ACGIH: TWA 0.2 mg/m3; TWA 3 mg/m3 NIOSH: IDLH 1 mg/m3; TWA 5 mg/m3; TWA 0.2 mg/m3; STEL 10 mg/m3 |
| InChI | InChI=1S/2Se.W |
| InChIKey | ROUIDRHELGULJS-UHFFFAOYSA-N |
| SMILES | [W](=[Se])=[Se] |
| CAS DataBase Reference | 12067-46-8(CAS DataBase Reference) |
| EPA Substance Registry System | Tungsten selenide (WSe2) (12067-46-8) |
Safety Data
| RIDADR | UN3283 - class 6.1 - PG 3 - EHS - Selenium compound, solid, n.o.s., HI: all (not BR) |
| WGK Germany | WGK 3 |
| TSCA | Yes |
| HazardClass | 9 |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| Hazard Classifications | Acute Tox. 3 Inhalation Acute Tox. 3 Oral Aquatic Acute 1 Aquatic Chronic 1 STOT RE 2 |