A.A.Baikov Institute of Metallurgy and Materials Science

DATABASE ON PROPERTIES OF CHEMICAL ELEMENTS
Properties of element Ir
PropertyValueCommentsReferences
ΔH interface M in O (Miedema)-240
 13823
ΔH interface M in S (Miedema)-165
 13823
ΔH interface O in M (Miedema)-120
 13823
ΔH interface S in M-75
 13823
γ-free electron to specific heat3,1(mJ*mol-1*K-2)  13823
Atomic concentration7,06(1023 m-3)  13823
Atomic electron scattering factor at 0.53,12 13823
Atomic environment number (Villars, Daams)12  13823
Atomic number start counting left top, left-right sequence77  13823
Atomic weight192,217(10-3 kg)  14358
Atomic weight192,22(10-3 kg)  13823
Boiling temperature4403
 13823
Boiling temperature4701
 19178
Boiling temperature4703
 19178
Boiling temperature5573
 19178
Bulk modulus371(GPa)  13823
Charge nuclear effective (Clementi)10,57 13823
Chemical potential (Miedema)5,55 13823
Compression modulus3,55(GPa)  13823
Conductivity electrical20,4(104 Ohm-1*cm-1) 13823
Conductivity thermal147
 13823
Debye temperature420
 13823
Density22420
 13823
Density22560
 5390
Distance from core electron (Schubert)0,79(A) 13823
Distance from valence electron (Schubert)1,24(A) 13823
Electrochemical weight equivalent0,50026(mg*K-1)  13823
Electron affinity151
 13823
Electronegativity (Alfred-Rochow)1,55 13823
Electronegativity (Martynov&Batsanov)1,87 13823
Electronegativity (Pauling)2,2 13823
Electronegativity absolute5,4 13823
Energy cohesive (Brewer)6,94
 13823
Energy of ionization first878
 13823
Energy of ionization second1641
 13823
Energy of ionization third2606
 13823
Enthalpy of atomization665,3
 13823
Enthalpy of atomization670
 5390
Enthalpy of melting26,4
 13823
Enthalpy of surface (Miedema)178
 13823
Enthalpy of vacancies (Miedema)190
 13823
Enthalpy of vaporization564
 19178
Enthalpy of vaporization612,1
 13823
Enthalpy of vaporization636
 19178
Entropy of solid35,49
 5390
Entropy of solid35,5
 20518
Entropy of solid36,42516
 13823
Group number9 13823
Hardness (Brinell)1670[MPa] 13823
Linear thermal expansion coefficient6,4(10-6*K-1) 13823
Magnetic frequency of nuclei1,718 13823
Magnetic resonance0,9(MHz)  13823
Magnetic susceptibility0,00000000167(m3*kg-1) 13823
Mass attenuation coefficient CrKα502(cm2*g-1)  13823
Mass attenuation coefficient FeKα341(cm2*g-1) 13823
Mass attenuation coefficient for CuKα193(cm2*g-1)  13823
Mass attenuation coefficient for MoKα110(cm2*g-1)  13823
Melting temperature2683
 13823
Melting temperature2719
 5390
Melting temperature2727
 17059
Mendeleev chemists sequence70  13823
Mendeleev d-t start left61  13823
Mendeleev d-t start right41  13823
Mendeleev H d-t start left60  13823
Mendeleev H d-t start right42  13823
Mendeleev H t-d start left62  13823
Mendeleev H t-d start right44  13823
Mendeleev Pettifor66  13823
Mendeleev Pettifor regular64  13823
Mendeleev t-d start left63  13823
Mendeleev t-d start right43  13823
Modulus of rigidity209(GPa) 13823
Molar heat capacity25,09
 5390
Molar heat capacity25,1
 13823
Moment nuclear magnetic0,17(mu) 13823
Nuclear charge effective (Slater)3,9 13823
nW1/3 (Miedema)1,83(a.u.-1/3)  13823
Oxidation state first 3 13823
Periodic number start counting bottom right, right-left sequence27  13823
Periodic number start counting left bottom, left-right sequence40  13823
Periodic number start counting top right, right-left sequence64  13823
Poisson's ratio0,26 13823
Quantum number6 13823
Radii covalent126
 13823
Radii metal (Waber)1,357(A) 13823
Radii pseudo-potential (Zunger)2,628(a.u.) 13823
Resistivity electrical5,3(10-8 Ohm*m)  13823
Sound velocity4825(m*s-1) 13823
Spectral lines no169 13823
Spin nuclei1,5(h) 13823
Surface tension at Tm3000
 13823
Thermal neutron capture cross section425(barns) 13823
V2/3 (Miedema)4,17(cm2)  13823
Valence electron number9 13823
Vapour pressure at Tm1,47(N*m-2) 13823
Volume of atom (Villars, Daams)1,414(10-2 nm3)  13823
Work function5,3(eV)  13823
Young's modulus514,8(GPa)  17059
Young's modulus528(GPa)  13823
PropertyC.N.Radii ionic (Shannon)CommentsReferences
Ir+360,680 Å 13826
Ir+460,625 Å 13826
Ir+560,570 Å 13826
PropertyValueCommentsReferences
Radii ionic (Bokii & Belov)
Ir+40,650 Å 13824
Radii ionic (Goldsmidt)
Ir+40,660 Å 13824
Radii ionic (Pauling)
Ir+40,640 Å 13824
Radii ionic (Yagoda)
Ir+30,750 Å 13824
Ir+40,670 Å 13824
Ir+60,560 Å 13824