IiPropati zoMzimba zeTantalum
Isimboli sekhemikhali Ta, intsimbi engwevu yentsimbi, ikwiqela le-VB kwitheyibhile yeperiodic ye
izinto, inombolo ye-athomu 73, ubunzima be-athomu 180.9479, ikristale ye-cubic ephakathi komzimba,
Valence eqhelekileyo yi +5.Ubunzima be-tantalum buphantsi kwaye bunxulumene neoksijini
umxholo.Ubulukhuni beVickers be-tantalum eqhelekileyo ecocekileyo yi-140HV kuphela kwi
Imeko ye-annealed.Indawo yayo yokunyibilika iphezulu ukuya kuma-2995°C, ibekwe kwindawo yesihlanu phakathi
izinto ze-elemental emva kwekhabhoni, i-tungsten, i-rhenium kunye ne-osmium.UTantalum nguye
ithambileyo kwaye inokuzotywa ibe yimicu ebhityileyo ukwenza iifoyile ezibhityileyo.I-coefficient yayo ye
ukwanda kwe-thermal kuncinci.Ikhula kuphela ngeengxenye ezi-6.6 kwisigidi ngasinye kwisidanga seCelsius.
Ukongeza, ukuqina kwayo kunamandla kakhulu, ngakumbi kunobhedu.
Inombolo ye-CAS: 7440-25-7
Udidi lwe-Element: izinto zetsimbi zenguqu.
Ubunzima beathom obunxulumeneyo: 180.94788 (12C = 12.0000)
Ubuninzi: 16650kg/m³;16.654g/cm³
Ukuqina: 6.5
Indawo: Umjikelo wesithandathu, iQela leVB, uMmandla d
Imbonakalo: Steel Grey Metallic
Ubume be-Elektroni: [Xe] 4f14 5d3 6s2
Umthamo we-athomu: 10.90cm3 / mol
Umxholo wezinto kumanzi olwandle: 0.000002ppm
Umxholo kwi-crust: 1ppm
Imeko ye-Oxidation: +5 (enkulu), -3, -1, 0, +1, +2, +3
Ulwakhiwo lweCrystal: Iyunithi yeseli yicubic unit cell egxile kumzimba, kunye neyunithi yeseli nganye
iqulethe iiathom zentsimbi ezi-2.
Iiparamitha zeeseli:
a = 330.13 pm
b = 330.13 pm
c = 330.13 pm
α = 90 °
β = 90 °
γ = 90 °
Ubunzima beVickers (ukunyibilika kwe-arc kunye nokuqina okubandayo): 230HV
Vickers ubulukhuni (recrystallization annealing): 140HV
Ubulukhuni beVickers (emva kokunyibilika kwe-electron enye): 70HV
Ubulukhuni beVickers (bunyibilikiswa ngumqadi we-electron yesibini): 45-55HV
Indawo yokunyibilika: 2995°C
Isantya sokusasazwa kwesandi kuyo: 3400m/s
Amandla e-ionization (kJ/mol)
M – M+ 761
M+ – M2+ 1500
M2+ – M3+ 2100
M3+ – M4+ 3200
M4+ – M5+ 4300
Ifunyanwe ngu: 1802 ngusokhemisti waseSweden uAnders Gustafa Eckberg.
Ukuthiywa kwamagama: U-Ekberg wathiya le nto ngoTantalus, uyise kaKumkanikazi
UNeobi waseThebes kwiintsomi zamandulo zamaGrike.
Umthombo: Ifumaneka ikakhulu kwi-tantalite kwaye ihlala kunye ne-niobium.
Ixesha lokuposa: Jan-06-2023