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Merck

61139

Copper

≥99.0%, turnings, purum p.a.

Synonym(s):

Cu

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About This Item

Empirical Formula (Hill Notation):
Cu
CAS Number:
Molecular Weight:
63.55
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12141711
EC Number:
231-159-6
MDL number:
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Product Name

Copper, turnings, purum p.a., ≥99.0%

grade

purum p.a.

Quality Level

assay

≥99.0%

quality

turnings

reaction suitability

core: copper, reagent type: catalyst

resistivity

1.673 μΩ-cm, 20°C

turnings L

~0.5 cm

bp

2567 °C (lit.)

mp

1083.4 °C (lit.)

density

8.94 g/mL at 25 °C (lit.)

cation traces

Al: ≤50 mg/kg, Cd: ≤50 mg/kg, Co: ≤50 mg/kg, Fe: ≤200 mg/kg, Mg: ≤50 mg/kg, Mn: ≤50 mg/kg, Ni: ≤50 mg/kg, Pb: ≤100 mg/kg, Zn: ≤200 mg/kg

SMILES string

[Cu]

InChI

1S/Cu

InChI key

RYGMFSIKBFXOCR-UHFFFAOYSA-N

General description

Copper turnings are a form of copper metal that has been specifically cut to have a high surface area. This form of copper is particularly useful because it provides a greater contact area for reagents to interact with which can help speed up reactions and increase yields.

Application

Copper turnings are used to synthesize inorganic salts and organometallic complexes and catalysts that can be employed in a variety of synthetic transformations. It is useful in:
  • Synthesis of polynitro[60]fullerene.
  • Copper-catalyzed azide-alkyne Huisgen cycloaddition (click reaction) to synthesize 5-membered heterocycles.
  • Trifluoromethylation of heteroaromatic compounds.
  • Preparation of electrolyte for all-copper hybrid flow batteries.



Storage Class

13 - Non Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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