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CAS Nr:. | 7440-58-6 |
Khoom siv: | Ntshiab Hafnium (Hf ntxiv rau Zr> 99.95 feem pua, Zr <1 feem pua) |
Qhov tsos: | Silvery metallic khoom |
Cov duab: | Bar, Rau |
Loj: | Txoj kab uas hla: 20-40mm; Ntev:<> |
Hafnium Crystal Bar Description
Hafnium muaj qhov zoo corrosion kuj thiab siab zog. Nws tiv taus corrosion vim tsim cov tawv tawv, impenetrable oxide zaj duab xis ntawm nws qhov chaw. Hafnium tsis cuam tshuam los ntawm alkalis thiab acids, tsuas yog hydrofluoric acid. Hafnium yog qhov nyuaj rau kev cais cov zirconium, vim tias ob lub ntsiab lus muaj cov atoms uas loj tib yam. Cov ntawv thov Hafnium suav nrog cov tshuab hluav taws xob nuclear, nuclear submarines, cov cuab yeej kho mob, roj hlwb, hnub ci zog.
Hafnium muaj lub peev xwm muaj zog los ntes cov neutron, ua rau nws yog ib qho khoom siv zoo rau kev tswj cov pas nrig hauv nuclear reactors. Kev lag luam nuclear kwv yees siv ib nrab ntawm Hf tsim txhua xyoo. Txawm li cas los xij, qhov chaw lag luam loj rau cov khoom hafnium tseem yog qhov tsim tawm ntawm cov qib nuclear zirconium. Hafnium kuj tseem siv los ua ib qho ntxiv rau cov alloys thiab siv lead ua bar yog qhov zoo tshaj plaws rau siab purity hafnium. Hafnium siv lead ua bar kuj tseem siv los ua raw khoom rau siab purity hafnium hlau thiab hafnium lub hom phiaj. Hafnium xov hlau thiab lwm yam Hf qhov chaw kuj tseem siv rau hauv plasma txiav vim tias lawv muaj peev xwm los tso cov hluav taws xob hauv huab cua. High purity hafnium xov hlau yuav muaj kev ua tau zoo dua thiab ruaj khov dua li cov khoom siv purity tsawg.
Hafnium Crystal Bar Properties
● Hafnium muaj kev tiv thaiv corrosion zoo, tsis yooj yim corroded los ntawm cov tshuaj acid-base aqueous, thiab yooj yim yaj hauv hydrofluoric acid los ua fluorine complexes.
● Thaum qhov kub thiab txias, hafnium kuj tuaj yeem ua ke ncaj qha nrog oxygen, nitrogen, thiab lwm yam gases los tsim oxides thiab nitrides.
● Hafnium kuj ruaj khov nyob rau hauv cov huab cua, thiab hmoov hafnium yog heev yooj yim mus hlawv.
● Hafnium muaj qhov loj thermal neutron capture cross-section, thiab hafnium muaj zog heev nuclear. Nws yog ib qho tseem ceeb tsis tshua muaj khoom siv rau txoj kev loj hlob ntawm atomic zog kev lag luam.
Hafnium Crystal Bar Daim Ntawv Thov thiab Lwm Yam Kev Lag Luam
● High purity hafnium khoom
● Super alloys
● Nuclear
Ntim ntawm Hafnium Crystal Bar
Peb cov khoom siv lead ua hafnium tau ua tib zoo saib xyuas kom txo qis kev puas tsuaj thaum lub sijhawm khaws cia thiab kev thauj mus los thiab khaws cia zoo ntawm peb cov khoom hauv lawv qhov qub.
Chemical Identifiers
Linear Formula | Hf |
MDL Number | PAB 00011032 |
EC No. | 231-166-4 |
Beilstein/Reaxys No. | N/A |
Pubchem CID | 23986 |
IUPAC npe | hafnium |
SMILES | [Hf] |
InchI ID nkag mus | InChI=1S/Hf |
InchI Key | VBJZVLUMGGDVMO-UHFFFAOYSA-N |
Hafnium Crystal Bars Cov Khoom (Theoretical)
Molecular Luj | 178.49 |
Qhov tshwm sim | Nyiaj |
Melting Point | 2227 degree |
Boiling Point | 4 602 o ua |
Qhov ntom | 13.31 g/m |
Solubility hauv H2O | N/A |
Hluav taws xob Resistivity | 35.1 microhm-cm @ 25 degree |
Electronegativity | 1.3 Pauling |
Kub ntawm Vaporization | 155 K-Cal / gm atom ntawm 4602 degree |
Poisson tus ratio | 0.37 |
Tshwj xeeb kub | 0.035 Cal/g/K @ 25 degree |
Tensile zog | N/A |
Thermal conductivity | 0.230 W/cm/K @ 298.2 K |
Thermal Expansion | (25 degree) 5.9 µm·m-1·K-1 |
Vickers Hardness | 1760 MPa |
Young's Modulus | 78gp ua |
Cim npe nrov: Hafnium Crystal Bar, Tuam Tshoj, lwm tus neeg, yuav, muag, ua nyob rau hauv Suav teb
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