Template:Infobox titanium/sandbox

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[[Category:Template:Pagetype with short description]]

Titanium, 22Ti
Titan-crystal bar.JPG
Titanium
Pronunciation/tɪˈtniəm, t-/[1] (Template:Respell)
Appearancesilvery grey-white metallic
Standard atomic weight Ar, std(Ti)Template:Val[2]
Titanium in the periodic table
Template:Periodic table (32 columns, micro) -

Ti

Zr
scandiumtitaniumvanadium
Atomic number (Z)22
Groupgroup 4
Periodperiod 4
Block  d-block
Electron configuration[Ar] 3d2 4s2
Electrons per shell2, 8, 10, 2
Physical properties
Phase at STPsolid
Melting point1941 K ​(1668 °C, ​3034 °F)
Boiling point3560 K ​(3287 °C, ​5949 °F)
Density (near r.t.)4.506 g/cm3
when liquid (at m.p.)4.11 g/cm3
Heat of fusion14.15 kJ/mol
Heat of vaporization425 kJ/mol
Molar heat capacity25.060 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1982 2171 (2403) 2692 3064 3558
Atomic properties
Oxidation states−2, −1, 0,[3] +1, +2, +3, +4[4] (an amphoteric oxide)
ElectronegativityPauling scale: 1.54
Ionization energies
  • 1st: 658.8 kJ/mol
  • 2nd: 1309.8 kJ/mol
  • 3rd: 2652.5 kJ/mol
  • (more)
Atomic radiusempirical: 147 pm
Covalent radius160±8 pm
Color lines in a spectral range
Spectral lines of titanium
Other properties
Natural occurrenceprimordial
Crystal structurehexagonal close-packed (hcp)
Hexagonal close packed crystal structure for titanium
Speed of sound thin rod5,090 m/s (at r.t.)
Thermal expansion8.6 µm/(m·K) (at 25 °C)
Thermal conductivity21.9 W/(m·K)
Electrical resistivity420 nΩ·m (at 20 °C)
Magnetic orderingparamagnetic
Young's modulus116 GPa
Shear modulus44 GPa
Bulk modulus110 GPa
Poisson ratio0.32
Mohs hardness6.0
Vickers hardness970 MPa
Brinell hardness716 MPa
CAS Number7440-32-6
History
DiscoveryWilliam Gregor (1791)
First isolationJöns Jakob Berzelius (1825)
Named byMartin Heinrich Klaproth (1795)
Main isotopes of titanium
[[Isotope|IsoTemplate:Shytope]] [[Natural abundance|AbunTemplate:Shydance]] Half-life (t1/2) Decay mode [[Decay product|ProTemplate:Shyduct]]
44Ti syn 63 y ε 44Sc
γ -
46Ti 8.0% stable
47Ti 7.3% stable
48Ti 73.8% stable
49Ti 5.5% stable
50Ti 5.4% stable
Category Category: Titanium
| references

References

  1. "titanium - definition of titanium in English | Oxford Dictionaries". Oxford University Press. 2017. Retrieved 2017-03-28.
  2. Meija, Juris; et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry. 88 (3): 265–91. doi:10.1515/pac-2015-0305.
  3. Jilek, Robert E.; Tripepi, Giovanna; Urnezius, Eugenijus; Brennessel, William W.; Young, Victor G., Jr.; Ellis, John E. (2007). "Zerovalent titanium–sulfur complexes. Novel dithiocarbamato derivatives of Ti(CO)6: [Ti(CO)4(S2CNR2)]". Chem. Commun. (25): 2639–2641. doi:10.1039/B700808B. PMID 17579764.
  4. Andersson, N.; et al. (2003). "Emission spectra of TiH and TiD near 938 nm" (PDF). J. Chem. Phys. 118 (8): 10543. Bibcode:2003JChPh.118.3543A. doi:10.1063/1.1539848.
  5. Andersson, N.; et al. (2003). "Emission spectra of TiH and TiD near 938 nm" (PDF). J. Chem. Phys. 118: 10543. Bibcode:2003JChPh.118.3543A. doi:10.1063/1.1539848. Explicit use of et al. in: |author= (help)

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