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Merck
CN

481629

Copper(I) selenide

greener alternative

99.95% trace metals basis

Synonym(s):

Cuprous selenide, Dicopper monoselenide, Dicopper selenide

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About This Item

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

Key Documents

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Quality Level

100

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

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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

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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

Signal Word

Danger

Hazard Statements

H301 + H331,H373,H410

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2

Storage Class Code

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ4128
MKCX3475
MKCV3744
MKCT6561
MKCR5756

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Modified chemical deposition and physico-chemical properties of copper (I) selenide thin films
Pathan HM, et al.
Applied Surface Science, 211(1-4), 48-56 (2003)
Phosphine-free synthesis of p-type copper (I) selenide nanocrystals in hot coordinating solvents
Deka S, et al.
Journal of the American Chemical Society, 132(26), 8912-8914 (2010)
High-temperature conductivity in chemical bath deposited copper selenide thin films
Dhanam M, et al.
Journal of Crystal Growth, 280(3-4), 425-435 (2005)

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