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357456

Sigma-Aldrich

Copper

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

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About This Item

Empirical Formula (Hill Notation):
Cu
CAS Number:
7440-50-8
Molecular Weight:
63.55
EC Number:
231-159-6
MDL number:
MFCD00010965
UNSPSC Code:
12141711
PubChem Substance ID:
24861916
NACRES:
NA.23

Quality Level

100

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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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
GHS02,GHS09

Signal Word

Danger

Hazard Statements

H228,H410

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Formation of dendritic copper deposit in industrial electrolysis
Osipova ML, et al.
Powder Metallurgy and Metal Ceramics, 49(5-6), 253-259 (2010)
Effect of size and shape of metal particles to improve hardness and electrical properties of carbon nanotube reinforced copper and copper alloy composites
Uddin SM, et al.
Composites Science and Technology, 70(16), 2253-2257 (2010)
Biodiesel production from highly unsaturated feedstock via simultaneous transesterification and partial hydrogenation in supercritical methanol
Shin H, et al.
Journal of Supercritical Fluids, 82(5-6), 251-255 (2013)
Daniel L Priebbenow et al.
Organic letters, 15(24), 6155-6157 (2013-11-28)
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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Science (New York, N.Y.), 343(6167), 167-170 (2013-12-18)
Carbon monoxide (CO) produced in many large-scale industrial oxidation processes is difficult to separate from nitrogen (N2), and afterward, CO is further oxidized to carbon dioxide. Here, we report a soft nanoporous crystalline material that selectively adsorbs CO with adaptable
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