TUNGSTEN SELENIDE
- CAS No.
- 12067-46-8
- Chemical Name:
- TUNGSTEN SELENIDE
- Synonyms
- WSe2 Crystal;TUNGSTEN SELENIDE;TUNGSTEN DISELENIDE;Tungsten(Ⅳ) selenide;TUNGSTEN (IV) SELENIDE;Tungsten Selenium (IV);bis(selanylidene)tungsten;CVD Method Monolayer WSe2;Tungsten(IV) selenide lump;IV) 99.9%TUNGSTEN SELENIDE
- CBNumber:
- CB5120338
- Molecular Formula:
- Se2W
- Molecular Weight:
- 341.78
- MDL Number:
- MFCD00049703
- MOL File:
- 12067-46-8.mol
- MSDS File:
- SDS
| 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 |
| CAS DataBase Reference | 12067-46-8(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| EPA Substance Registry System | Tungsten selenide (WSe2) (12067-46-8) |
| UNSPSC Code | 12352103 |
| NACRES | NA.23 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS06,GHS08,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H301+H331-H373-H410 | |||||||||
| Precautionary statements | P260-P301+P330+P331+P310-P304+P340+P311-P403+P233 | |||||||||
| RIDADR | UN3283 - class 6.1 - PG 3 - EHS - Selenium compound, solid, n.o.s., HI: all (not BR) | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 9 | |||||||||
| NFPA 704 |
|
TUNGSTEN SELENIDE price More Price(4)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 808822 | Tungsten diselenide Crystal, 99.995% | 12067-46-8 | 1ea | $1330 | 2024-03-01 | Buy |
| Sigma-Aldrich | 901483 | Tungsten selenide single crystalline monolayer flakes on sapphire | 12067-46-8 | 1EA | $391 | 2023-06-20 | Buy |
| Alfa Aesar | 013084 | Tungsten(IV) selenide 99.8% (metals basis) | 12067-46-8 | 10g | $95.2 | 2024-03-01 | Buy |
| Alfa Aesar | 013084 | Tungsten(IV) selenide 99.8% (metals basis) | 12067-46-8 | 50g | $318 | 2023-06-20 | Buy |
TUNGSTEN SELENIDE Chemical Properties,Uses,Production
Chemical Properties
-325 mesh black powder(s); dry, solid lubricant with exceptional stability at high temperatures, and in high vacuum; used in the form of 99.8% pure material as a sputtering target to produce lubricant films [HAW93] [CER91] [AES93]
Uses
Tungsten(IV) selenide is used as an important compound in electrochemical solar cells. It acts as a stable semiconductor.
Uses
Owing to the thickness dependent physical and chemical properties, the two dimensional layered inorganic nanomaterials have drawn significant attention recently. They find applications in photocatalysis, phtotovoltaics, gas sensing, lithium ion batteries, field effect transistors, spintronics etc. Transition metal dichalcogenides represent an important class of inorganic 2D materials having aforementioned applications. The CVD grown monolayer films of MoS2, MoSe2, WS2 and WSe2 on insulating substrates such as SiO2 and sapphire are well suited for electronic and photovoltaic devices.
Uses
The two dimensional layered inorganic nanomaterials have drawn significant attention recently owing to their thickness dependent physical and chemical properties. They find applications in photocatalysis, phtotovoltaics, gas sensing, lithium ion batteries, field effect transistors, spintronics etc. Transition metal dischalcogenides represent an important class of inorganic 2D materials having the aforementioned applications.
Definition
Lamellarstructured, dry, solid lubricant with exceptionally high temperature and high vacuum stability. Retains its lubricity to temperatures as low as ?265C.
Hazard
TLV: 5 mg(W)/m3.
Structure and conformation
Tungsten diselenide, WSe2, has a hexagonal crystalline structure comparable to MoS2. Every tungsten atom is covalently bonded to six selenium ligands in a trigonal prismatic coordination sphere, and each selenium is bonded to three
tungsten atoms in a pyramidal geometry. Heating thin films of tungsten under pressure from gaseous selenium and high
temperatures ( . 527℃/800K) using the sputter deposition technique leads to the films crystallizing in hexagonal structures with the correct stoichiometric ratio.
W+ 2Se→WSe2
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29865 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28172 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | sales@chemdad.com | China | 39894 | 58 |
| Antai Fine Chemical Technology Co.,Limited | 18503026267 | info@antaichem.com | CHINA | 9636 | 58 |
| HANGZHOU CLAP TECHNOLOGY CO.,LTD | 86-571-88216897,88216896 13588875226 | sales@hzclap.com | CHINA | 6312 | 58 |
| Henan Alfa Chemical Co., Ltd | China | 13179 | 58 | ||
| changzhou huayang technology co., ltd | +8615250961469 | 2571773637@qq.com | China | 9719 | 58 |
| Alfa Chemistry | Info@alfa-chemistry.com | United States | 24072 | 58 | |
| Shaanxi Didu New Materials Co. Ltd | +86-89586680 +86-13289823923 | 1026@dideu.com | China | 8670 | 58 |
| ZHEJIANG JIUZHOU CHEM CO., LTD | +86-0576225566889 +86-13454675544 | admin@jiuzhou-chem.com；jamie@jiuzhou-chem.com；alice@jiuzhou-chem.com | China | 12272 | 58 |
View Lastest Price from TUNGSTEN SELENIDE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2019-07-06 | TUNGSTEN SELENIDE
12067-46-8
|
US $1.00 / g | 50 g | 99.9% | 20kg | Career Henan Chemical Co |
-
- TUNGSTEN SELENIDE
12067-46-8
- US $1.00 / g
- 99.9%
- Career Henan Chemical Co
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