808822
Tungsten diselenide
Crystal, 99.995%
Synonym(s):
Tungsten (IV) selenide, Tungsten selenide
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About This Item
Linear Formula:
WSe2
CAS Number:
Molecular Weight:
341.76
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
26111700
MDL number:
Quality Segment
description
Electrical properties: Semiconductor, p-type
assay
99.995%
form
crystals
reaction suitability
core: tungsten
L × W × H
0.5 cm × 0.5 cm × 0.1-0.15 mm, typical size, some variation in dimensions may occur with different batches
primary crystallite size
~10 mm (hexagonal)
SMILES string
[Se]=[W]=[Se]
InChI
1S/2Se.W
InChI key
ROUIDRHELGULJS-UHFFFAOYSA-N
Application
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.
Preparation Note
Store under nitrogen atmosphere.
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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