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
• EC Number: 243-796-7
• MDL number: MFCD00049908
• UNSPSC Code: 12352300
• PubChem Substance ID: 24871772
• NACRES: NA.23

Properties

• assay: 99.95% trace metals basis
• form: powder and chunks
• greener alternative product characteristics: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• density: 6.84 g/mL at 25 °C (lit.)
• greener alternative category: Enabling,
• SMILES string: [Cu][Se][Cu]
• InChI: 1S/2Cu.Se
• InChI key: KTLOQXXVQYUCJU-UHFFFAOYSA-N

Description

General description

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).

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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
• signalword: Danger
• hcodes: H301 + H331,H373,H410
• pcodes: 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_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges