Time:2021-02-28 Source:Xingtai Aidu Metal Materials Co. LTD
Copper A metal with a purplish - red luster and a density of 8.92 g/cc. Melting point 1083.4℃, boiling point 2567℃. It's very malleable. Good thermal conductivity and electrical conductivity.
Magnetism: diamagnetic
Crystal type: face-centered cubic structure
Resistivity: 1.75 x 10-8 Ω m.
Speed of sound (at room temperature)
Electrolytic copper crystals (very beautiful copper crystals can be obtained by electrolysis)
Electrolytic copper crystals (very beautiful copper crystals can be obtained by electrolysis) (19 pieces)
Young's modulus: 110-128 GPa
Shear modulus: 48 GPa
Poisson's ratio: 0.34
Mohs hardness: 3.0
Vickers hardness: 343-369 MPa
Brinell hardness: 235 -- 878 MPa
Solid density 8.960 g/cm3
The molten liquid density is 8.920 g/cm3
Specific heat capacity: 24.440J /(mol·K)
Heat of vaporization: 300.4kJ/mol
Melting heat: 13.26kJ/mol
Thermal conductivity: 401 W/m.K
Coefficient of expansion :(25 °C) 16.5 μm/m·K
The valence is usually +2, but also +1 (3-valent copper occurs only in a few unstable compounds, such as potassium cuprate KCuO2)
Content in the crust (PPM) : 50
Contents in the Sun (PPM) : 0.7
Ionization energy: 7.726 electron volts
Flame color: green