481629

Copper(I) selenide

99.95% trace metals basis

• Synonym(s): Cuprous selenide, Dicopper monoselenide, Dicopper selenide
• Linear Formula: Cu₂Se
• CAS Number: 20405-64-5
• Molecular Weight: 206.05
• NACRES: NA.23
• PubChem Substance ID: 24871772
• UNSPSC Code: 12352300
• EC Number: 243-796-7
• MDL number: MFCD00049908

Properties

• Quality Segment: 100
• assay: 99.95% trace metals basis
• form: powder and chunks
• reaction suitability: core: copper
• sustainability: Sustainability features
• density: 6.84 g/mL at 25 °C (lit.)
• SMILES string: [Cu][Se][Cu]
• InChI: 1S/2Cu.Se
• InChI key: KTLOQXXVQYUCJU-UHFFFAOYSA-N

Description

General description

This product aligns with one or more of the 12 Principles of Green Chemistry Find details here.

Copper selenide is an ionic conductor. 1 In nature, it occurs as mineral berzelianite. 2 Copper selenide may be prepared galvanically by coupled copper metal oxidation and Se reduction in alkaline selenosulfate (Na₂SeSO₃).

Application

Copper(I) selenide (Cu₂Se) is a semiconductor material, which exists in cubic, tetragonal or orthorhombic forms. It forms thin films, which can be used as solar cell materials, optical filters, thermoelectric converters, electro-optical devices, and microwave shield coatings.

Packaging

Packaged in poly bottles

Safety Information

• Pictograms: GHS06,GHS08,GHS09
• Signal Word: Danger
• Hazard Codes: H301 + H331,H373,H410
• Precautionary Statements: P260 - P264 - P273 - P301 + P310 - P304 + P340 + P311 - P314
• Hazard Classifications: Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2
• Storage Class: 6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• PPE (personal protective equipment): Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges