ChemicalBook > CAS DataBase List > TUNGSTEN SELENIDE

TUNGSTEN SELENIDE

Product Name
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
Formula Weight
341.78
MOL File
12067-46-8.mol
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TUNGSTEN SELENIDE Property

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)
EPA Substance Registry System
Tungsten selenide (WSe2) (12067-46-8)
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Safety

RIDADR 
UN3283 - class 6.1 - PG 3 - EHS - Selenium compound, solid, n.o.s., HI: all (not BR)
TSCA 
Yes
HazardClass 
9
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H373May cause damage to organs through prolonged or repeated exposure

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
808822
Product name
Tungsten diselenide
Purity
Crystal, 99.995%
Packaging
1ea
Price
$1330
Updated
2024/03/01
Sigma-Aldrich
Product number
901483
Product name
Tungsten selenide
Purity
single crystalline monolayer flakes on sapphire
Packaging
1EA
Price
$391
Updated
2023/06/20
Alfa Aesar
Product number
013084
Product name
Tungsten(IV) selenide
Purity
99.8% (metals basis)
Packaging
10g
Price
$95.2
Updated
2024/03/01
Alfa Aesar
Product number
013084
Product name
Tungsten(IV) selenide
Purity
99.8% (metals basis)
Packaging
50g
Price
$318
Updated
2023/06/20
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TUNGSTEN SELENIDE Chemical Properties,Usage,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

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.

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.

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.

TUNGSTEN SELENIDE Preparation Products And Raw materials

Raw materials

Preparation Products

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TUNGSTEN SELENIDE Suppliers

China 92 Germany 1 India 2 Japan 1 United Kingdom 4 United States 14 Global 114
VI Semiconductor Materials Group Co. Ltd
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View Lastest Price from TUNGSTEN SELENIDE manufacturers

Career Henan Chemical Co
Product
TUNGSTEN SELENIDE 12067-46-8
Price
US $1.00/g
Min. Order
50 g
Purity
99.9%
Supply Ability
20kg
Release date
2018-12-18

12067-46-8, TUNGSTEN SELENIDERelated Search:

INDIUM SELENIDE Sodium tungstate dihydrate SODIUM SELENIDE CADMIUM SELENIDE Tungsten carbide Selenium TUNGSTEN SULFIDE TUNGSTEN TELLURIDE SILVER SELENIDE Sodium tungstate GERMANIUM DISULFIDE Cadmium sulfide CADMIUM TELLURIDE Zinc oxide BISMUTH(III) OXIDE TITANIUM(IV) SULFIDE Tellurium dioxide INDIUM ACETATE

  • TUNGSTEN DISELENIDE
  • TUNGSTEN (IV) SELENIDE
  • TUNGSTEN SELENIDE
  • TUNGSTEN (IV) SELENIDE, 99.8% (METALS BASIS)
  • Tungsten(Ⅳ) selenide
  • Tungsten(IV) selenide (WSe2)
  • IV) 99.9%TUNGSTEN SELENIDE
  • Tungsten diselenide Crystal, 99.995%
  • Tungsten(IV) selenide lump
  • Tungsten(IV) selenide, 99.99%, trace metals basis
  • TUNGSTEN SELENIDE ISO 9001：2015 REACH
  • WSe2 Crystal
  • bis(selanylidene)tungsten
  • Tungsten Selenium (IV)
  • Mechanically Exfoliated Monolayer WSe2 On Substrates
  • CVD Method Monolayer WSe2
  • 12067-46-8
  • WSe2
  • Se2W