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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

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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ9381
MKCL1857
MKCD5261
MKBW5392V
MKBL3355V

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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)
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)
Formation of dendritic copper deposit in industrial electrolysis
Osipova ML, et al.
Powder Metallurgy and Metal Ceramics, 49(5-6), 253-259 (2010)
Seiko Ishida et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(48), 19507-19512 (2013-11-13)
Copper is an essential trace element, the imbalances of which are associated with various pathological conditions, including cancer, albeit via largely undefined molecular and cellular mechanisms. Here we provide evidence that levels of bioavailable copper modulate tumor growth. Chronic exposure
R Squitti et al.
Neurology, 67(1), 76-82 (2006-07-13)
To assess whether serum copper in Alzheimer disease (AD) correlates with cognitive scores, beta-amyloid, and other CSF markers of neurodegeneration. The authors studied copper, ceruloplasmin, total peroxide, and antioxidants levels (TRAP) in serum; beta-amyloid in plasma; and copper, beta-amyloid, h-tau
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