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Zr
in WebElements
in X-Ray info
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Zr, 40
zirconium (English)
zirconium, m. (French)
Zirkonium, n. (German)
tsirkonij (Russian)
zirkonium (Swedish)
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| Symbol, number | Zr, 40 (metal), Group: 4; 4B |
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| Weight | 91.224 |
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| In Nature | |
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| Discovered | 1789, by Martin Heinrich Klaproth (Germany) |
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| Density [kg/m3] | 6506 [293 K] (solid) 5800 [2125 K] (liquid) |
| Molar volume | 14.02 cm3 |
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| Melting Temperature | 2125 K (1852 °C) Enthalpy: 581.6 kJ/mol |
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| Boiling Temperature | 4650 K (4377 °C) Enthalpy: 23.0 kJ/mol |
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| Electrical resistance | 42.1E-8 [293 K] Wm |
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| Thermal | Conductivity: 22.7 [300 K] W/Km Expansion: 5.78E-6 /K |
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| Ionisation [kJ/mol] |
| M--> |
M+--> |
M2+--> |
M3+--> |
M4+--> |
M5+--> |
M6+--> |
M7+--> |
M8+--> |
M9+-->M10+ |
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| Thermodynamics |
| State |
DfH° |
DfG° |
S° |
CpH |
H°298.15-H°0 |
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[J/Kmol] |
[kJ/mol] |
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| Isotopes |
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Mass |
In nature |
Half-life |
Spin |
m/mN |
NMM |
Decay |
| Zr |
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