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357456

Sigma-Aldrich

Copper

powder (dendritic), <45 μm, 99.7% trace metals basis

Empirical Formula (Hill Notation):
Cu
CAS Number:
Molecular Weight:
63.55
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

Assay

99.7% trace metals basis

form

powder (dendritic)

resistivity

1.673 μΩ-cm, 20°C

particle size

<45 μm

bp

2567 °C (lit.)

mp

1083.4 °C (lit.)

density

8.94 g/mL at 25 °C (lit.)

SMILES string

[Cu]

InChI

1S/Cu

InChI key

RYGMFSIKBFXOCR-UHFFFAOYSA-N

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326453203122254177
Copper powder (dendritic), &lt;45&#160;&#956;m, 99.7% trace metals basis

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Copper powder (spheroidal), 10-25&#160;&#956;m, 98%

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Copper beads, 2-8&#160;mm, 99.9995% trace metals basis

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Copper

form

powder (dendritic)

form

powder (spheroidal)

form

powder

form

beads

resistivity

1.673 μΩ-cm, 20°C

resistivity

1.673 μΩ-cm, 20°C

resistivity

1.673 μΩ-cm, 20°C

resistivity

1.673 μΩ-cm, 20°C

bp

2567 °C (lit.)

bp

2567 °C (lit.)

bp

2567 °C (lit.)

bp

2567 °C (lit.)

mp

1083.4 °C (lit.)

mp

1083.4 °C (lit.)

mp

1083.4 °C (lit.)

mp

1083.4 °C (lit.)

density

8.94 g/mL at 25 °C (lit.)

density

8.94 g/mL at 25 °C (lit.)

density

8.94 g/mL at 25 °C (lit.)

density

8.94 g/mL at 25 °C (lit.)

General description

Copper powder (dendritic) is also known as an electrolytic copper powder (ECP) which has a dendritic shape with a particle size that is less than 4.5 μm. The dendritic shape of the copper particles can be produced by electrolytic deposition method.

Application

ECP can be used as a catalyst in the production of biodiesel by transesterification of soybean oil and partial hydrogenation of polyunsaturated compounds. It can also be used to form a metal composite with carbon nanotubes for the formation of high strength copper alloys.

Pictograms

FlameEnvironment

Signal Word

Danger

Hazard Statements

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Sol. 1

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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25G
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MMYOMAG-74K-13

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Composites Science and Technology, 70(16), 2253-2257 (2010)
Formation of dendritic copper deposit in industrial electrolysis
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Powder Metallurgy and Metal Ceramics, 49(5-6), 253-259 (2010)
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Journal of Supercritical Fluids, 82(5-6), 251-255 (2013)
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A method has been developed for the preparation of N-alkynylated sulfoximines involving the copper-catalyzed decarboxylative coupling of sulfoximines with aryl propiolic acids. A range of substituents on both the sulfoximidoyl moiety and the aryl group of the propiolic acid were
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