808733

Tantalum diselenide

Crystal, 99.995%

• Synonym(s): Tantalum selenide
• Empirical Formula (Hill Notation): TaSe₂
• CAS Number: 12039-55-3
• Molecular Weight: 338.87
• NACRES: NA.23
• PubChem Substance ID: 329769121
• UNSPSC Code: 26111700
• MDL number: MFCD00064699

Properties

• Quality Segment: 100
• assay: 99.995%
• form: crystals
• 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
• SMILES string: [Se]=[Ta]=[Se]
• InChI: 1S/2Se.Ta
• InChI key: IYJABVNLJXJBTP-UHFFFAOYSA-N

Description

General description

The hexagonal layered crystal structure of Tantalum diselenide constitutes of Se-Ta-Se layers in various stacking arrangements. The layered structure allows lamination or exfoliation of the layers.

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, photovoltaics, gas sensing, lithium ion batteries, field effect transistors, spintronics etc. Transition metal dischalcogenides represent an important class of inorganic 2D materials that have the aforementioned applications.

Preparation Note

Store under Nitrogen atmosphere.

Safety Information

• Pictograms: GHS06,GHS08,GHS09
• Signal Word: Danger
• Hazard Codes: H301 + H331,H373,H410
• Precautionary Statements: P260 - P301 + P330 + P331 + P310 - P304 + P340 + P311 - P403 + P233
• 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