Element Copper

Copper ElementElement Copper is a chemical element with the symbol Cu (from Latin: cuprum) and atomic number 29.
It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color.
Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement.

Names and Identifiers

Chemical Formula:Cu
CAS:7440-50-8
Molecular Weight:63.545 g/mol
EC Number :231-159-6
MDL Number:MFCD00010965
Color:orange-red
Other Names:Cuprum, Cuivre, Kupfer, Cobre
PubChem CID:23978
IUPAC Name:Copper
Inchl:InChI=1S/Cu
InChI Key:RYGMFSIKBFXOCR-UHFFFAOYSA-N
Canonical SMILES:[Cu]
ICSC Number:0240

Physical & Chemical Properties

Phase:Solid
Density:8.96 g/cm³
Boiling Point:2835 K ​(2562 °C, ​4643 °F)
Melting Point:1357.77 K ​(1084.62 °C, ​1984.32 °F)
Molecular Formula:Cu
Flash Point:-23 °C
Exact Mass:62.928505
Symbol:Globally Harmonized System of ClassificationGlobally Harmonized System of Classification
Signal Word:Danger
Hazard Statements:H228-H410
Precautionary Statements:P210-P273
Hazard Codes:F:Flammable
Risk Phrases:R11
Safety Phrases:S5-S26-S16-S61-S62-S36/37
RIDADR:UN 3089 4.1/PG 2
WGK Germany:3
RTECS:GL5325000
Packaging Group:II
Hazard Class:4.1

Both isotopes of Copper, Cu-63 and Cu-65, are used to study copper metabolism and gastrointestinal diseases. Cu-63 is used for production of medical radioisotope Zn-62 and can also be used for the production of Cu-64 which is used in cancer diagnosis and treatment. Cu-65 has also been proposed as a precursor for the (cyclotron) production of Cu-64.

Naturally occurring isotopes

IsotopeMass/DaNatural abundance (atom %)Nuclear spin (I)Magnetic moment (μ/μN)
63Cu62.9295989 (17)69.17 (3)3/22.2233
65Cu64.9277929 (20)30.83 (3)3/22.3817

Radiosotope data

IsotopeMass/DaHalf-lifeMode of decayNuclear spinNuclear magnetic moment
59Cu58.9395041.36 mEC to 59Ni3/2
60Cu59.93736823.7 mEC to 60Ni21.219
61Cu60.9334623.35 hEC to 61Ni3/22.14
62Cu61.9325879.74 mEC to 62Ni1-0.380
64Cu63.92976812.701 hEC to 64Ni; β to 64Zn1-0.217
66Cu65.9288735.09 mβ to 66Zn1-0.282
67Cu66.927752.580 dβ to 67Zn3/2
68Cu67.9296431 sβ to 68Zn1
69Cu68.929432.8 mβ to 69Zn3/2

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