Qhov sib txawv tseem ceeb ntawm cob alt thiab titanium yog nyob rau hauv lawv cov tsos; cob alt yog ib qho nyuaj, lustrous xiav-grey hlau whereas titanium yog silvery grey-dawb hlau.
Ob leeg cob alt thiab titanium yog hlau nyob rau hauv d-block. Lawv feem ntau txawv ntawm ib leeg raws li lawv cov tsos. Txawm li cas los xij, muaj ntau qhov sib txawv ntawm cob alt thiab titanium. Piv txwv li, thaum xav txog cov khoom sib nqus ntawm cov hlau, cob alt yog ferromagnetic thaum titanium yog paramagnetic. Cia peb tham txog qhov sib txawv ntawm lawv.
Cob alt yog dab tsi?
Cob alt yog cov khoom siv tshuaj muaj lub cim Co thiab atomic tooj 27. Nws yog ib qho d-block keeb nyob rau hauv lub sij hawm lub rooj thiab yog hlau. Yog li ntawd, nws tsis tshwm sim raws li ib tug neeg hlau nyob rau hauv lub ntiaj teb crust, es tsis txhob, tshwm sim nyob rau hauv ua ke nrog rau lwm yam. Txawm li cas los xij, peb tuaj yeem tsim cov khoom dawb ntawm cov txheej txheem smelting; Nws yog ib qho nyuaj, lustrous xiav-grey hlau.
Lub atomic loj ntawm lub caij no yog 58.93 amu. Nws nyob hauv lub rooj zaum hauv pawg 9 thiab lub sijhawm 4. Tsis tas li ntawd, peb tuaj yeem faib nws ua cov hlau hloov pauv. Lub teeb tsa hluav taws xob ntawm cov hlau no yog [Ar] 3d7 4s2 Ntawm tus qauv siab thiab kub, nws yog nyob rau hauv lub xeev khoom. Lub melting point thiab boiling point yog 1495 ° C thiab 2927 ° C feem. Qhov feem ntau oxidation xeev ntawm cov hlau no yog +2, +3 thiab +4. Nws cov qauv siv lead ua yog hexagonal kaw-packed qauv.
Daim duab 01: Pom ntawm Cob alt
Ntxiv mus, cob alt yog cov khoom siv ferromagnetic. Nws txhais tau tias nws yog heev attracted rau cov hlau nplaum. Lub ntiajteb txawj nqus tshwj xeeb ntawm cov hlau no yog 8.9, uas yog tus nqi siab heev. Halogens thiab sulfur tuaj yeem tua cov hlau no. Txawm li cas los xij, nws yog cov hlau tsis muaj zog. Peb tuaj yeem tiv thaiv nws ntawm oxidation los ntawm passivating oxide zaj duab xis.
Thaum xav txog kev tsim cov cob alt, peb tuaj yeem siv cov cob alt xws li cob altite, erythrite, glaucodot, thiab skutterudite. Tab sis, feem ntau ntawm cov sij hawm, manufacturers tau txais cov hlau no los ntawm kev txo cov cob alt byproducts ntawm nickel thiab tooj liab mining.
Y Titanium yog dab tsi?
Titanium yog cov khoom siv tshuaj muaj lub cim Ti thiab tus lej atomic 22. Nws yog hlau nyob hauv d block. Nws muaj ib tug silvery grey-dawb metallic tsos. Ntxiv mus, nws yog ib qho kev hloov hlau. Nws muaj lub zog siab piv rau nws qhov ntom ntom. Qhov tseem ceeb tshaj, nws yog corrosion resistant rau dej hiav txwv, aqua regia thiab chlorine.
Tus qauv atomic hnyav yog 47.86 amu. Nws nyob hauv pawg 4 thiab lub sijhawm 4 ntawm lub rooj sib tham. Lub teeb tsa hluav taws xob yog [Ar] 3d 2 4s 2 Nws muaj nyob hauv lub xeev khoom ntawm tus qauv kub thiab siab. Lub melting point thiab boiling point ntawm cov hlau no yog 1668 ° C thiab 3287 ° C feem. Qhov feem ntau thiab ruaj khov oxidation xeev ntawm cov hlau no yog +4.
Daim duab 02: Pom ntawm Titanium
Ntxiv nrog rau qhov tseeb tias nws muaj lub zog siab rau qhov hnyav piv, cov hlau yog qhov zoo nkauj thiab ci ntsa iab. Vim nws qhov siab melting point, titanium yog ib qho tseem ceeb raws li cov khoom siv refractory. Ntxiv mus, nws yog paramagnetic thiab muaj hluav taws xob tsawg thiab thermal conductivity. Peb tuaj yeem pom cov hlau no feem ntau zoo li hauv daim ntawv oxide nyob rau hauv cov pob zeb uas tsis muaj zog thiab hauv cov pob zeb uas tau los ntawm cov pob zeb no. Nws yog qhov thib cuaj tshaj plaws nyob rau hauv lub ntiaj teb crust. Cov minerals uas dais titanium hlau muaj xws li anatase, brookite, ilmenite, perovskite, rutile, thiab titanite.
Qhov txawv ntawm Cob alt thiab Titanium yog dab tsi?
Cob alt yog cov khoom siv tshuaj muaj lub cim Co thiab atomic tooj 27. Ntawm qhov tod tes, titanium yog cov khoom siv tshuaj muaj lub cim Ti thiab atomic tooj 22. Lub atomic loj ntawm lub caij no yog 58.93 amu thaum lub atomic. Qhov loj ntawm titanium yog 47.86 amu. Ntxiv mus, cob alt yog ib qho nyuaj ci xiav-grey hlau tab sis, ntawm qhov tsis sib xws, titanium muaj cov xim grey-dawb xim hlau. Cov infographic hauv qab no nthuav tawm cov ntaub ntawv ntxiv txog qhov sib txawv ntawm cob alt thiab titanium.
Summary – Cob alt vs Titanium
Cob alt thiab titanium yog cov hlau hloov pauv hauv d block ntawm lub sijhawm teem sijhawm. Qhov sib txawv tseem ceeb ntawm cob alt thiab titanium yog nyob rau hauv lawv cov tsos; cob alt yog ib qho nyuaj ci xiav-grey hlau whereas titanium yog silvery grey-dawb hlau.
