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Technical data for Cadmium

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Overview
NameCadmium
SymbolCd
Atomic Number48
Atomic Weight112.411
Density8.65 g/cm3
Melting Point321.07 °C
Boiling Point767 °C

Thermal properties
PhaseSolid
Melting Point321.07 °C
Boiling Point767 °C
Absolute Melting Point594.22 K
Absolute Boiling Point1040 K
Critical PressureN/A
Critical TemperatureN/A
Heat of Fusion6.3 kJ/mol
Heat of Vaporization100 kJ/mol
Heat of CombustionN/A
Specific Heat230 J/(kg K)[note]
Adiabatic IndexN/A
Neel PointN/A
Thermal Conductivity97 W/(m K)
Thermal Expansion0.0000308 K-1

Bulk physical properties
Density8.65 g/cm3
Density (Liquid)7.996 g/cm3
Molar Volume0.000012995
Brinell Hardness203 MPa
Mohs Hardness2 MPa
Vickers HardnessN/A
Bulk Modulus42 GPa
Shear Modulus19 GPa
Young Modulus50 GPa
Poisson Ratio0.3
Refractive IndexN/A
Speed of Sound2310 m/s
Thermal Conductivity97 W/(m K)
Thermal Expansion0.0000308 K-1

Reactivity
Valence2
Electronegativity1.69
ElectronAffinity0 kJ/mol
Ionization Energies
867.8, 1631.4, 3616 kJ/mol

Health and Safety
Autoignition Point250 °C
FlashpointN/A
Heat of CombustionN/A
DOT Hazard Class6.1
DOT Numbers2570
EU NumberN/A
NFPA Fire Rating2
NFPA HazardsN/A
NFPA Health Rating2
NFPA Reactivity Rating0
RTECS NumberRTECSEU9800000
NFPA LabelNFPA Label

Classifications
Alternate NamesNone
Names of AllotropesNone
Blockd
Group12
Period5
Electron Configuration[Kr]4d105s2
ColorSilver
Discovery
1817 in Germany
Gas phaseN/A
CAS NumberCAS7440-43-9
CID NumberCID23973
Gmelin NumberN/A
NSC NumberN/A
RTECS NumberRTECSEU9800000

Electrical properties
Electrical TypeConductor
Electrical Conductivity1.4×107 S/m
Resistivity7×10-8 m Ω
Superconducting Point0.517

Magnetic properties
Magnetic TypeDiamagnetic
Curie PointN/A
Mass Magnetic Susceptibility-2.3×10-9
Molar Magnetic Susceptibility-2.59×10-10
Volume Magnetic Susceptibility-0.0000199

Abundances
% in Universe2×10-7%
% in Sun6×10-7%
% in Meteorites0.000044%
% in Earth's Crust0.000015%
% in Oceans5×10-9%
% in Humans0.00007%

Atomic dimensions and structure
Atomic Radius161 pm
Covalent Radius148 pm
Van der Waals Radius158 pm
Crystal StructureSimple Hexagonal
Lattice Angles
π/2, π/2, 2 π/3
Lattice Constants
297.94, 297.94, 561.86 pm
Space Group NameP63/mmc
Space Group Number194

Nuclear Properties
Half-LifeStable
LifetimeStable
Decay ModeN/A
Quantum Numbers1S0
Neutron Cross Section2450
Neutron Mass Absorption1.4
Known Isotopes
95Cd, 96Cd, 97Cd, 98Cd, 99Cd, 100Cd, 101Cd, 102Cd, 103Cd, 104Cd, 105Cd, 106Cd, 107Cd, 108Cd, 109Cd, 110Cd, 111Cd, 112Cd, 113Cd, 114Cd, 115Cd, 116Cd, 117Cd, 118Cd, 119Cd, 120Cd, 121Cd, 122Cd, 123Cd, 124Cd, 125Cd, 126Cd, 127Cd, 128Cd, 129Cd, 130Cd, 131Cd, 132Cd
Stable Isotopes
106Cd, 108Cd, 110Cd, 111Cd, 112Cd, 114Cd
Isotopic Abundances
106Cd1.25%
108Cd0.89%
110Cd12.49%
111Cd12.8%
112Cd24.13%
113Cd12.22%
114Cd28.73%
116Cd7.49%


Notes on the properties of Cadmium:

Specific Heat: Value given for solid gamma form.

Up to date, curated data provided by
Mathematica's ElementData function from Wolfram Research, Inc.

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