Qhov txawv ntawm Titanium thiab tungsten

2024 Tus sau: Alex Aldridge | [email protected]. Kawg hloov kho: 2023-12-17 13:40

Titanium vs Tungsten

Ob leeg, titanium thiab tungsten yog d thaiv cov ntsiab lus. Lawv feem ntau hu ua cov hlau hloov pauv. Ob leeg hlau yog siv los ua cov hniav nyiaj hniav kub vim lawv cov xim, hardness thiab durability.

YTitanium

Titanium yog lub caij nrog tus lej atomic 22 thiab lub cim Ti. Nws yog d block element thiab tam sim no nyob rau hauv 4 ^thlub sijhawm ntawm lub sijhawm teem sijhawm. Kev teeb tsa hluav taws xob ntawm Ti yog 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d² Ti feem ntau tsim cov tebchaw nrog +4 oxidation xeev, tab sis nws tuaj yeem muaj +3 oxidation xeev. Atomic mass ntawm Ti yog txog 48 g mol^-1 Ti yog cov hlau hloov pauv nrog cov xim ci ci. Nws muaj zog tab sis muaj qhov ntom ntom, kuj corrosion resistant thiab ruaj. Nws muaj qhov siab melting point ntawm 1668 ^{o C. Titanium yog paramagnetic thiab muaj hluav taws xob tsawg thiab thermal conductivity. Muaj cov ntshiab Ti yog tsis tshua muaj vim nws yog reactive nrog oxygen. Cov txheej txheej titanium dioxide tsim ua raws li txheej tiv thaiv ntawm Ti thiab tiv thaiv nws los ntawm corrosion. Titanium dioxide muaj txiaj ntsig zoo hauv cov ntawv, xim thiab kev lag luam yas. Los ntawm Ti yog soluble nyob rau hauv concentrated acids, nws yog non-reactive nrog dilute inorganic thiab organic acids.}

Cov khoom ntawm titanium ua rau muaj txiaj ntsig hauv ntau yam kev siv. Txij li nws tsis yooj yim corroded los ntawm seawater, Ti yog siv los ua cov khoom hauv nkoj. Tsis tas li ntawd, lub zog thiab lub teeb yuag tso cai rau Ti siv rau hauv dav hlau, foob pob ua ntxaij, cuaj luaj, thiab lwm yam. Ti yog non-toxic thiab bio tshaj, ua rau nws haum rau biomaterial daim ntaub ntawv. Ti yog cov hlau muaj txiaj ntsig, yog li siv los ua cov hniav nyiaj hniav kub.

Tungsten

Tungsten, uas yog pom los ntawm lub cim W, yog ib qho kev hloov pauv hlau nrog tus lej atomic 74. Nws yog xim dawb xim xim. Nws belongs rau pawg rau thiab lub sij hawm 6 nyob rau hauv lub periodic table. Qhov hnyav molecular ntawm tungsten yog 183.84 g / mol. Kev teeb tsa hluav taws xob ntawm tungsten yog [Xe] 4f¹⁴ 5d⁴ 6s^{2 tungsten qhia oxidation xeev los ntawm -2 txog +6, tab sis feem ntau oxidation xeev yog +6. Tungsten tiv thaiv cov tshuaj tiv thaiv ntawm oxygen, acids thiab alkalis thaum nws nyob rau hauv ntau npaum li cas. Scheelite thiab wolframite yog hom tseem ceeb tshaj plaws ntawm tungsten minerals. Tungsten mines yog nyob rau hauv Suav teb. Tsis tas li ntawd, muaj qee lub tebchaws xws li Russia, Austria, Bolivia, Peru thiab Portugal. Tungsten yog nrov dua rau lawv siv raws li lub teeb filaments. Cov ntsiab lus melting siab heev (3410 ° C) ntawm tungsten tau tso cai rau nws siv hauv qhov muag teev. Qhov tseeb, nws muaj qhov siab tshaj plaws melting point ntawm tag nrho cov ntsiab lus. Nws cov ntsiab lus kub kub kuj yog siab heev piv rau feem ntau lwm cov ntsiab lus. Nws yog hais txog 5660 ° C. Tungsten kuj tseem siv rau hauv kev sib cuag hluav taws xob thiab arc-welding electrodes.}

Qhov txawv ntawm Titanium thiab Tungsten yog dab tsi?

• Atomic naj npawb ntawm Ti yog 22, thiab tus lej atomic ntawm tungsten yog 74.

• Tungsten muaj d electrons ntau dua titanium. Hauv titanium, tsuas muaj 2 d electrons thiab tungsten muaj 24.

• Tungsten hnyav dua Ti.

• Ti nyob rau hauv pab pawg 4 hauv lub rooj sib tham, thiab W nyob hauv pab pawg 6.

• Ti feem ntau tsim cov tebchaw nrog +4 oxidation xeev whereas tungsten moistly forms tebchaw nrog +6 oxidation xeev.

• Tungsten muaj cov ntsiab lus melting ntau dua thiab kub kub piv rau Ti.