Qhov sib txawv tseem ceeb ntawm scandium thiab titanium yog tias scandium yog hlau heev, hos titanium yog hlau muaj zog heev.
Titanium yog cov hlau uas paub zoo tshaj plaws rau nws lub zog. Qee cov alloys ntawm titanium tuaj yeem muaj zog li hlau. Txawm hais tias scandium yog cov hlau muaj zog, nws tsis muaj zog li titanium.
Scandium yog dab tsi?
Scandium yog cov khoom siv tshuaj lom neeg muaj cov cim tshuaj Sc thiab tus lej atomic 21. Nws yog cov xim dawb-dawb xim hlau uas muaj nyob rau hauv d block ntawm lub sijhawm ntawm cov ntsiab lus. Peb tuaj yeem faib nws raws li lub ntiaj teb tsis tshua muaj. Nws yog ib yam khoom nyob rau hauv chav tsev kub thiab siab, muaj siab melting thiab boiling ntsiab lus. Tsis tas li ntawd, peb tuaj yeem soj ntsuam scandium hauv ntau qhov tso nyiaj tsawg-lub ntiaj teb thiab uranium tebchaw. Txawm li cas los xij, cov hlau no tau muab rho tawm los ntawm hom mines hauv ob peb mines hauv ntiaj teb; Yog li ntawd, nws muaj qhov muaj tsawg, thiab muaj teeb meem hauv kev npaj cov hlau nplaum scandium.
Lub ntuj tshwm sim ntawm scandium tuaj yeem muab ua thawj zaug. Nws muaj hexagonal kaw-packed siv lead ua qauv. Nws yog ib tug paramagnetic hlau thiab muaj npe tom qab Scandinavia, qhov chaw nrhiav tau los ntawm Lar Fredrik Nilson nyob rau hauv 1879.
Daim duab 01: Scandium Hlau
Scandium zoo nkaus li cov hlau mos uas muaj xim zoo nkauj. Nws tuaj yeem tsim cov xim daj lossis pinkish pov tseg thaum raug oxidation los ntawm huab cua. Tsis tas li ntawd, cov hlau no muaj kev cuam tshuam rau huab cua thiab tuaj yeem yaj maj mam hauv dilute acids. Txawm li cas los xij, scandium tsis hnov mob nrog 1: 1 sib xyaw ntawm nitric acid thiab hydrofluoric acid. Qhov no feem ntau yog los ntawm kev tsim cov txheej txheem passive impermeable.
Cov cation loj tsim los ntawm scandium yog +3 cation. Cov cation no muaj cov khoom zoo sib xws rau yttrium ions es tsis yog txhuas ions. Yog li, peb tuaj yeem faib cov hlau no ua cov tshuaj lanthanide zoo li. Cov oxides thiab hydroxides uas ua los ntawm cov hlau no feem ntau yog amphoteric. Tsis tas li ntawd, nws tsim halides, pseudohalides, organic derivatives, thiab qee qhov tsis tshua muaj oxidation xeev ib yam nkaus.
Thaum xav txog cov ntawv thov ntawm scandium, nws feem ntau yog siv rau kev tsim khoom ntawm scandium-aluminium alloy rau me me aerospace kev lag luam feem ntau lawm. Ntxiv mus, lub xov tooj cua isotope ntawm scandium (Sc-46) yog qhov tseem ceeb hauv cov roj refineries ua tus neeg saib xyuas.
Y Titanium yog dab tsi?
Titanium yog cov khoom siv tshuaj muaj lub cim Ti thiab tus lej atomic 22. Nws yog ib qho d thaiv lub caij, thiab peb tuaj yeem categorize nws li hlau. Titanium muaj ib tug silvery grey-dawb hlau zoo li. Tsis tas li ntawd, nws yog ib qho kev hloov hlau. Titanium muaj lub zog siab piv rau nws qhov ntom ntom. Qhov tseem ceeb tshaj, nws tiv taus corrosion thaum raug dej hiav txwv, aqua regia, thiab chlorine.
Daim duab 02: Titanium Hlau
Rau titanium hlau, tus qauv atomic hnyav yog 47.86 amu. Nws yog nyob rau hauv pawg 4 thiab lub sij hawm 4 ntawm lub periodic table. Kev teeb tsa hluav taws xob ntawm titanium yog [Ar] 3d2 4s2. Cov hlau no muaj nyob rau hauv cov khoom-lub xeev ntawm tus qauv kub thiab siab. Tsis tas li ntawd, 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.
Ntxiv rau qhov muaj lub zog-rau-hnyav piv, titanium hlau yog qhov zoo nkauj thiab ci ntsa iab. Nyob ntawm nws qhov siab melting point, cov hlau no yog ib qho tseem ceeb raws li cov khoom siv refractory. Tsis tas li ntawd, titanium yog paramagnetic thiab muaj hluav taws xob tsawg thiab thermal conductivity. Peb tuaj yeem pom titanium hlau, feem ntau yog titanium oxide, nyob rau hauv feem ntau cov pob zeb uas tsis muaj zog thiab hauv cov pob zeb uas tau los ntawm cov pob zeb no. Tsis tas li ntawd, titanium yog qhov thib cuaj tshaj plaws nyob rau hauv lub ntiaj teb crust. Titanium hlau feem ntau tshwm sim xws li anatase, brookite, ilmenite, perovskite, rutile, thiab titanite.
Qhov txawv ntawm Scandium thiab Titanium yog dab tsi?
Titanium yog cov hlau uas paub zoo tshaj plaws rau nws lub zog. Qee cov alloys ntawm titanium tuaj yeem muaj zog li hlau. Txawm hais tias scandium yog cov hlau muaj zog, nws tsis muaj zog li titanium. Yog li ntawd, qhov sib txawv tseem ceeb ntawm scandium thiab titanium yog lawv lub zog.
Cov hauv qab no infographic nthuav tawm qhov sib txawv ntawm scandium thiab titanium hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Scandium vs Titanium
Scandium thiab titanium yog cov khoom siv hlau tseem ceeb uas peb tuaj yeem pom ib txwm muaj raws li qee qhov tso nyiaj. Qhov sib txawv tseem ceeb ntawm scandium thiab titanium tuaj yeem muab tau raws li qhov scandium yog lub teeb heev thiab tsis muaj zog hlau, qhov titanium yog cov hlau muaj zog heev.
