Tantalum Physical Properties
Kemikari chiratidzo Ta, simbi grey simbi, ndeyeboka VB mu periodic table ye
zvinhu, nhamba yeatomu 73, huremu hweatomu 180.9479, muviri-yakatarisana nekriststal cubic,
common valence i +5.Kuoma kwe tantalum kwakaderera uye kwakabatana neokisijeni
content.Iyo Vickers kuomarara kweyakajairwa yakachena tantalum inongova 140HV mu
annealed state.Nzvimbo yayo yekunyungudika yakakwira kusvika 2995 ° C, iri pachishanu pakati pe
elemental zvinhu mushure mecarbon, tungsten, rhenium uye osmium.Tantalum ndiye
inoumbika uye inogona kudhonzwa kuita twunhu tutete kuita mapepi matete.Coefficient yayo ye
kupisa kwekuwedzera kudiki.Inongowedzera ne6.6 zvikamu pamiriyoni padhigirii Celsius.
Mukuwedzera, kuoma kwayo kwakasimba zvikuru, kunyange nani kupfuura mhangura.
Nhamba yeCAS: 7440-25-7
Element chikamu: shanduko yesimbi zvinhu.
Hukama hweatomu hukuru: 180.94788 (12C = 12.0000)
Density: 16650kg/m³;16.654g/cm³
Kuoma: 6.5
Nzvimbo: Yechitanhatu kutenderera, Boka VB, Zone d
Chitarisiko: Steel Grey Metallic
Electron kumisikidza: [Xe] 4f14 5d3 6s2
Atomic vhoriyamu: 10.90cm3 / mol
Zviri mukati mezvinhu zviri mumvura yegungwa: 0.000002ppm
Zviri mukati mukukura: 1ppm
Oxidation mamiriro: +5 (huru), -3, -1, 0, +1, +2, +3
Crystal chimiro: Iyo unit sero inhengo-yakatarisana necubic unit cell, uye yega yega sero
ine maatomu maviri esimbi.
Sero parameters:
a = 330.13 pm
b = 330.13 pm
c = 330.13 pm
α = 90°
β = 90°
γ = 90°
Vickers kuoma (arc kunyunguduka uye kutonhora kuomesa): 230HV
Vickers kuoma (recrystallization annealing): 140HV
Vickers kuoma (mushure meimwe erekitironi danda kunyunguduka): 70HV
Vickers kuoma (kunyungudutswa neyechipiri erekitironi danda): 45-55HV
Kunyungudika: 2995°C
Iyo yekuparadzira kumhanya kwekurira mairi: 3400m/s
Ionization simba (kJ/mol)
M – M+ 761
M+ – M2+ 1500
M2+ – M3+ 2100
M3+ – M4+ 3200
M4+ – M5+ 4300
Yakawanikwa ne: 1802 naSwedish chemist Anders Gustafa Eckberg.
Element zita: Ekberg akatumidza zita rekuti Tantalus, baba vaMambokadzi
Neobi weThebes mune yekare ngano dzechiGiriki.
Kwakabva: Inonyanya kuwanikwa mu tantalite uye inogarisana ne niobium.
Nguva yekutumira: Jan-06-2023