21 Scandium thiab nws cov kev sim uas nquag siv
Txais tos rau lub ntiaj teb no ntawm cov ntsiab lus uas muaj kev paub tsis meej thiab ntxim nyiam. Niaj hnub no, peb yuav tshawb nrhiav qhov tshwj xeeb ua ke -scandium. Txawm hais tias lub ntsiab lus no yuav tsis tshwm sim hauv peb lub neej niaj hnub, nws ua lub luag haujlwm tseem ceeb hauv kev tshawb fawb thiab kev lag luam.
Scandium, no zoo kawg nkaus lub caij, muaj ntau amazing zog. Nws yog ib tug tswv cuab ntawm lub ntiaj teb tsis tshua muaj keeb tsev neeg. Zoo li lwm yamtsawg ntiaj teb yam, lub atomic qauv ntawm scandium yog tag nrho ntawm paub tsis meej. Nws yog cov qauv atomic tshwj xeeb uas ua rau scandium ua lub luag haujlwm tsis tuaj yeem hloov pauv hauv physics, chemistry thiab cov ntaub ntawv tshawb fawb.
Kev tshawb pom ntawm scandium yog tag nrho ntawm kev sib tw thiab tig thiab kev nyuaj siab. Nws pib xyoo 1841, thaum Swedish chemist LFNilson (1840 ~ 1899) vam tias yuav cais lwm cov ntsiab lus los ntawm kev ua kom huv.erbiumntiaj teb thaum kawm lub teeb hlau. Tom qab 13 zaug ntawm ib nrab decomposition ntawm nitrates, nws thaum kawg tau 3.5g ntawm ntshiabytterbiumntiaj teb. Txawm li cas los xij, nws pom tias qhov hnyav atomic ntawm ytterbium nws tau txais tsis zoo li qhov hnyav atomic ntawm ytterbium muab los ntawm Malinac ua ntej. Lub ntsej muag ntse Nelson pom tau hais tias tej zaum yuav muaj qee qhov sib sib zog nqus hauv nws. Yog li nws txuas ntxiv ua cov ytterbium uas nws tau txais nrog tib txheej txheem. Thaum kawg, thaum tsuas yog ib feem kaum ntawm cov qauv raug tso tseg, qhov ntsuas atomic hnyav poob rau 167.46. Qhov txiaj ntsig no yog ze rau qhov hnyav atomic ntawm yttrium, yog li Nelson hu nws "Scandium".
Txawm hais tias Nelson tau tshawb pom scandium, nws tsis tau nyiam ntau los ntawm cov zej zog kev tshawb fawb vim nws qhov tsis tshua muaj thiab nyuaj rau kev sib cais. Nws tsis yog txog thaum xyoo 19th lig, thaum kev tshawb fawb txog cov ntsiab lus hauv ntiaj teb tsawg dhau los ua ib qho qauv, qhov scandium tau rov tshawb pom thiab kawm.
Yog li, cia peb pib ntawm txoj kev taug kev ntawm kev tshawb nrhiav scandium, txhawm rau nthuav tawm nws qhov tsis paub thiab nkag siab qhov no zoo li qub tab sis qhov tseeb ntxim nyiam.
Daim ntawv thov teb ntawm scandium
Lub cim ntawm scandium yog Sc, thiab nws tus lej atomic yog 21. Cov khoom yog mos, silvery-dawb hloov hlau. Txawm hais tias scandium tsis yog ib qho khoom siv hauv lub ntiaj teb, nws muaj ntau yam tseem ceeb hauv daim ntawv thov, feem ntau hauv cov hauv qab no:
1. Aerospace Kev Lag Luam: Scandium aluminium yog lub teeb yuag, muaj zog siab alloy siv hauv cov qauv dav hlau, cav qhov chaw, thiab kev tsim hluav taws xob hauv kev lag luam aerospace. Qhov sib ntxiv ntawm scandium tuaj yeem txhim kho lub zog thiab corrosion tsis kam ntawm cov hlau thaum txo qhov ntom ntawm cov hlau, ua rau cov khoom siv dav hlau sib zog thiab ruaj khov dua.
2. Tsheb kauj vab thiab cov khoom ua si:Scandium aluminiumNws kuj yog siv los ua tsheb kauj vab, ntaus golf, thiab lwm yam khoom siv ua kis las. Vim nws zoo heev zog thiab lightness,scandium alloytuaj yeem txhim kho kev ua haujlwm ntawm cov khoom siv kis las, txo qhov hnyav, thiab ua kom cov khoom siv tau ntev.
3. Teeb pom kev lag luam:Scandium iodideyog siv los ua ib tug muab tub lim nyob rau hauv high-siv xenon teeb. Cov qij no yog siv hauv kev yees duab, ua yeeb yaj kiab, teeb pom kev zoo, thiab cov khoom siv kho mob vim tias lawv cov yam ntxwv spectral yog ze rau lub hnub ci ntuj.
4. Roj Cells:Scandium aluminiumkuj pom daim ntawv thov nyob rau hauv cov khoom oxide roj hlwb (SOFCs). Hauv cov roj teeb no,scandium-aluminium alloyyog siv los ua cov khoom siv anode, uas muaj kev ua haujlwm siab thiab ruaj khov, pab txhim kho kev ua haujlwm thiab kev ua haujlwm ntawm cov roj hlwb.
5. Kev tshawb fawb tshawb fawb: Scandium yog siv los ua cov khoom siv hauv kev tshawb fawb tshawb fawb. Hauv kev sim nuclear physics thiab particle accelerators, scandium scintillation crystals yog siv los xyuas cov hluav taws xob thiab cov khoom.
6. Lwm yam kev siv: Scandium kuj tseem siv los ua cov khoom siv hluav taws xob kub kub thiab hauv qee qhov tshwj xeeb alloys los txhim kho cov khoom ntawm cov hlau. Vim qhov kev ua tau zoo tshaj ntawm scandium hauv cov txheej txheem anodizing, nws kuj tseem siv los tsim cov khoom siv hluav taws xob rau cov roj teeb lithium thiab lwm yam khoom siv hluav taws xob.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias txawm hais tias nws muaj ntau daim ntawv thov, scandium cov khoom siv thiab siv tau txwv thiab kuj kim vim nws cov txheeb ze tsis tshua muaj, yog li nws cov nqi thiab lwm yam yuav tsum tau ua tib zoo xav thaum siv nws.
Lub cev muaj zog ntawm Scandium Element
1. Atomic Structure: Lub nucleus ntawm scandium muaj 21 protons thiab feem ntau muaj 20 neutrons. Yog li ntawd, nws tus qauv atomic hnyav (tus txheeb ze atomic mass) yog hais txog 44.955908. Nyob rau hauv cov nqe lus ntawm atomic qauv, lub electron configuration ntawm scandium yog 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹ 4s².
2. Lub cev lub cev: Scandium yog khoom nyob rau hauv chav tsev kub thiab muaj ib tug silvery-dawb tsos. Nws lub cev lub cev tuaj yeem hloov pauv nyob ntawm qhov hloov pauv ntawm qhov kub thiab txias.
3. Ceev: Qhov ceev ntawm scandium yog hais txog 2.989 g / cm3. Qhov no kuj tsis tshua muaj ceev ua rau nws ib tug sib sib zog nqus hlau.
4. Melting Point: Lub melting point ntawm scandium yog hais txog 1541 degrees Celsius (2806 degrees Fahrenheit), uas qhia tau hais tias nws muaj ib tug kuj siab melting point. 5. Boiling Point: Scandium muaj qhov kub ntawm 2836 degrees Celsius (5137 degrees Fahrenheit), uas txhais tau hais tias nws yuav tsum tau kub kub kom evaporate.
6. Hluav taws xob conductivity: Scandium yog ib tug zoo conductor ntawm hluav taws xob, nrog tsim nyog hluav taws xob conductivity. Txawm hais tias tsis zoo li cov khoom siv hluav taws xob zoo li tooj liab lossis txhuas, nws tseem muaj txiaj ntsig hauv qee cov ntawv thov tshwj xeeb, xws li electrolytic cells thiab aerospace applications.
7. Thermal Conductivity: Scandium muaj cov thermal conductivity siab, ua rau nws zoo thermal conductor ntawm qhov kub thiab txias. Qhov no muaj txiaj ntsig zoo hauv qee qhov kev siv kub kub.
8. Crystal Structure: Scandium muaj hexagonal kaw-packed siv lead ua qauv, uas txhais tau hais tias nws cov atoms tau ntim rau hauv cov hexagons kaw nyob rau hauv cov siv lead ua.
9. Magnetism: Scandium yog diamagnetic nyob rau hauv chav tsev kub, txhais tau tias nws tsis yog attracted los yog repelled los ntawm magnetic teb. Nws tus cwj pwm sib nqus muaj feem xyuam nrog nws cov qauv hluav taws xob.
10. Radioactivity: Tag nrho cov isotopes ruaj khov ntawm scandium tsis yog xov tooj cua, yog li nws yog cov khoom tsis muaj hluav taws xob.
Scandium yog lub teeb me me, siab-melting-point hlau nrog ntau daim ntawv thov tshwj xeeb, tshwj xeeb hauv kev lag luam aerospace thiab cov ntaub ntawv tshawb fawb. Txawm hais tias nws tsis pom muaj nyob rau hauv cov xwm txheej, nws lub cev muaj zog ua rau nws muaj txiaj ntsig zoo hauv ntau qhov chaw.
Chemical zog ntawm scandium
Scandium yog ib qho kev hloov pauv hlau.
1. Cov qauv Atomic: Scandium cov qauv atomic muaj 21 protons thiab feem ntau muaj txog 20 neutrons. Nws txoj kev teeb tsa hluav taws xob yog 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹ 4s², qhia tias nws muaj ib qho tsis muaj d orbital.
2. Chemical symbol and atomic number: Scandium's chemical symbol is Sc, and its atomic number is 21.
3. Electronegativity: Scandium muaj qhov tsawg electronegativity ntawm 1.36 (raws li Paul electronegativity). Qhov no txhais tau hais tias nws nyiam plam electrons los tsim cov ions zoo.
4. Oxidation xeev: Scandium feem ntau muaj nyob rau hauv lub xeev +3 oxidation, uas txhais tau hais tias nws tau poob peb electrons los ua Sc³⁺ ion. Qhov no yog nws feem ntau oxidation xeev. Txawm hais tias Sc²⁺ thiab Sc⁴⁺ kuj tseem ua tau, lawv tsis ruaj khov thiab tsis tshua muaj.
5. Compounds: Scandium feem ntau tsim cov tebchaw nrog cov ntsiab lus xws li oxygen, sulfur, nitrogen, thiab hydrogen. Qee qhov sib xyaw scandium suav nrogscandium oxide hmoov (Sc2O 3) thiab scandium halides (xws liScandium chloride, ScCl3).
6. Reactivity: Scandium yog cov hlau reactive, tab sis nws oxidizes sai heev nyob rau hauv cov huab cua, tsim ib tug oxide zaj duab xis ntawm scandium oxide, uas tiv thaiv oxidation tshwm sim ntxiv. Qhov no kuj ua rau scandium kuj ruaj khov thiab muaj qee qhov corrosion kuj.
7. Solubility: Scandium dissolves maj mam nyob rau hauv feem ntau acids, tab sis dissolves yooj yim dua nyob rau hauv alkaline tej yam kev mob. Nws yog insoluble hauv dej vim tias nws cov oxide zaj duab xis tiv thaiv ntxiv cov tshuaj tiv thaiv nrog dej molecules.
8. Lanthanide zoo li tshuaj lom neeg: Scandium cov khoom siv tshuaj zoo ib yam li cov lanthanide series (lanthanum, gadolinium nyob rau hauv cov ntshav, neodymium, thiab lwm yam), yog li nws yog qee zaum cais raws li lanthanide zoo li lub caij. Qhov zoo sib xws no feem ntau yog tshwm sim hauv lub vojvoog ionic, cov khoom sib xyaw ua ke thiab qee qhov reactivity.
9. Isotopes: Scandium muaj ntau yam isotopes, tsuas yog qee qhov ruaj khov. Cov isotope ruaj khov tshaj plaws yog Sc-45, uas muaj ib nrab-lub neej ntev thiab tsis muaj xov tooj cua.
Scandium yog ib yam khoom uas tsis tshua muaj, tab sis vim qee yam ntawm nws cov tshuaj lom neeg thiab lub cev muaj zog, nws ua lub luag haujlwm tseem ceeb hauv ntau qhov chaw siv, tshwj xeeb tshaj yog hauv kev lag luam aerospace, cov ntaub ntawv kev tshawb fawb thiab qee qhov kev siv high-tech.
Biological khoom ntawm scandium
Scandium tsis yog ib qho tseem ceeb hauv qhov xwm txheej. Yog li ntawd, nws tsis muaj cov khoom lom hauv cov kab mob. Cov khoom siv roj ntsha feem ntau cuam tshuam nrog kev ua haujlwm lom neeg, lom neeg nqus, metabolism thiab cuam tshuam ntawm cov ntsiab lus ntawm cov kab mob nyob. Txij li thaum scandium tsis yog ib qho tseem ceeb rau lub neej, tsis muaj cov kab mob uas paub tias muaj kev xav tau los yog siv rau scandium.
Cov nyhuv ntawm scandium rau cov kab mob feem ntau cuam tshuam nrog nws cov xov tooj cua. Qee cov isotopes ntawm scandium yog cov xov tooj cua, yog li yog tias tib neeg lub cev lossis lwm yam kab mob raug cuam tshuam los ntawm cov xov tooj cua scandium, nws yuav ua rau muaj kev phom sij txaus ntshai. Qhov xwm txheej no feem ntau tshwm sim hauv cov xwm txheej tshwj xeeb xws li kev tshawb fawb txog kev tshawb fawb txog hluav taws xob, hluav taws xob kho hluav taws xob lossis hluav taws xob nuclear.
Scandium tsis cuam tshuam nrog cov kab mob thiab muaj hluav taws xob txaus ntshai. Yog li ntawd, nws tsis yog ib qho tseem ceeb ntawm cov kab mob.
Scandium yog ib qho tshuaj lom neeg tsawg, thiab nws qhov kev faib tawm hauv qhov xwm txheej kuj txwv. Nov yog cov lus qhia ntxaws ntxaws rau kev faib tawm ntawm scandium hauv qhov xwm txheej:
1. Cov ntsiab lus nyob rau hauv qhov: Scandium muaj nyob rau hauv me me nyob rau hauv lub ntiaj teb lub crust. Qhov nruab nrab cov ntsiab lus nyob rau hauv lub ntiaj teb crust yog hais txog 0.0026 mg / kg (los yog 2.6 qhov chaw ib lab). Qhov no ua rau scandium yog ib qho ntawm cov khoom tsis tshua muaj nyob hauv lub ntiaj teb lub pob zeb.
2. Kev tshawb pom hauv cov zaub mov: Txawm tias nws cov ntsiab lus tsawg, scandium tuaj yeem pom nyob rau hauv qee yam minerals, feem ntau yog cov oxides lossis silicates. Qee cov zaub mov uas muaj scandium suav nrog scandianite thiab dolomite.
3. Extraction ntawm scandium: Vim nws txwv tsis pub faib nyob rau hauv qhov, nws yog ib qho nyuaj rau extract ntshiab scandium. Feem ntau, scandium tau txais los ntawm cov khoom lag luam ntawm txhuas smelting txheej txheem, raws li nws tshwm sim nrog txhuas hauv bauxite.
4. Geographical faib: Scandium tau faib thoob ntiaj teb, tab sis tsis sib npaug. Qee lub tebchaws xws li Tuam Tshoj, Russia, Norway, Sweden thiab Brazil muaj nplua nuj scandium deposits, thaum lwm cheeb tsam tsis tshua muaj lawv.
Txawm hais tias scandium muaj qee qhov kev faib tawm hauv qhov xwm txheej, nws ua lub luag haujlwm tseem ceeb hauv qee qhov kev siv thev naus laus zis thiab kev lag luam, yog li nws
Extraction thiab Smelting ntawm Scandium Element
Scandium yog cov hlau tsis tshua muaj, thiab nws cov txheej txheem mining thiab extraction yog qhov nyuaj heev. Cov hauv qab no yog cov ncauj lus kom ntxaws qhia txog mining thiab extraction txheej txheem ntawm scandium keeb:
1. Extraction ntawm scandium: Scandium tsis muaj nyob rau hauv nws daim ntawv elemental nyob rau hauv cov xwm, tab sis feem ntau muaj nyob rau hauv kab nyob rau hauv ores. Lub ntsiab scandium ore muaj xws li vanadium scandium ore, zircon ore, thiab yttrium ore. Cov ntsiab lus scandium hauv cov ore no kuj tsawg.
Cov txheej txheem ntawm extracting scandium feem ntau suav nrog cov kauj ruam hauv qab no:
a. Mining: excavating ores muaj scandium.
b. Crushing thiab ore ua: Sib tsoo thiab ua cov ore kom cais cov txiaj ntsig zoo ntawm cov pob zeb pov tseg.
c. Flotation: Los ntawm cov txheej txheem flotation, ores uas muaj scandium raug cais los ntawm lwm yam impurities.
d. Kev tawg thiab txo qis: Scandium hydroxide feem ntau yog yaj thiab tom qab ntawd txo qis rau cov xim hlau scandium los ntawm kev txo tus neeg sawv cev (feem ntau yog txhuas).
e. Electrolytic extraction: Qhov txo qis scandium yog muab rho tawm los ntawm cov txheej txheem electrolytic kom tau txais high-purityscandium hlau.
3. Refining ntawm scandium: Los ntawm ntau cov txheej txheem dissolution thiab crystallization, purity ntawm scandium tuaj yeem txhim kho ntxiv. Ib txoj hauv kev yog cais thiab crystallize scandium tebchaw los ntawm chlorination lossis carbonation txheej txheem kom tau txaishigh-purity scandium.
Nws yuav tsum raug sau tseg tias vim qhov tsis txaus ntawm scandium, cov txheej txheem rho tawm thiab ua kom zoo dua yuav tsum muaj cov khoom siv tshuaj lom neeg zoo heev, thiab feem ntau tsim cov khoom pov tseg thiab cov khoom lag luam. Yog li ntawd, cov mining thiab extraction ntawm scandium keeb yog ib txoj haujlwm nyuaj thiab kim, feem ntau ua ke nrog cov mining thiab extraction txheej txheem ntawm lwm cov ntsiab lus los txhim kho kev lag luam.
Kev txheeb xyuas cov txheej txheem ntawm scandium
1. Atomic absorption spectrometry (AAS): Atomic absorption spectrometry yog ib qho kev siv ntau yam kev soj ntsuam uas siv qhov nqus spectrum ntawm cov wavelengths tshwj xeeb los txiav txim siab qhov concentration ntawm scandium hauv cov qauv. Nws atomizes tus qauv yuav tsum tau kuaj nyob rau hauv ib tug nplaim taws, thiab ces ntsuas qhov nqus siv ntawm scandium nyob rau hauv cov qauv los ntawm ib tug spectrometer. Txoj kev no tsim nyog rau kev tshawb nrhiav cov kab mob siab ntawm scandium.
2. Inductively coupled plasma optical emission spectrometry (ICP-OES): Inductively coupled plasma optical emission spectrometry yog ib txoj kev rhiab heev thiab xaiv kev tshuaj ntsuam uas tau siv dav hauv kev tshuaj xyuas ntau yam. Nws atomizes tus qauv thiab tsim cov ntshav, thiab txiav txim siab lub wavelength tshwj xeeb thiab kev siv ntawm scandium emission nyob rau hauv ib spectrometer.
3. Inductively coupled plasma mass spectrometry (ICP-MS): Inductively coupled plasma mass spectrometry yog ib txoj kev rhiab heev thiab muaj kev daws teeb meem siab heev uas siv tau rau kev txiav txim siab isotope ratio thiab kab kawm tsom xam. Nws atomizes tus qauv thiab tsim ib lub plasma, thiab txiav txim siab qhov loj-rau-them piv ntawm scandium nyob rau hauv ib tug loj spectrometer. 4. X-ray fluorescence spectrometry (XRF): X-ray fluorescence spectrometry siv cov fluorescence spectrum generated tom qab tus qauv zoo siab los ntawm X-rays los soj ntsuam cov ntsiab lus ntawm cov khoom. Nws tuaj yeem txiav txim siab sai thiab tsis muaj kev puas tsuaj rau cov ntsiab lus ntawm scandium hauv cov qauv.
5. Direct reading spectrometry: Kuj hu ua photoelectric direct reading spectrometry, nws yog ib qho kev soj ntsuam uas siv los txheeb xyuas cov ntsiab lus ntawm cov ntsiab lus hauv cov qauv.Direct reading spectrometry yog raws li lub hauv paus ntsiab lus ntawm atomic emission spectrometry. Nws siv hluav taws xob kub kub los yog arcs ncaj qha rau vaporize cov ntsiab lus hauv cov qauv los ntawm cov khoom hauv lub xeev thiab emit cov yam ntxwv spectral kab hauv lub xeev zoo siab. Txhua lub ntsiab lus muaj qhov tshwj xeeb emission kab, thiab nws qhov kev siv zog yog proportional rau cov ntsiab lus ntawm lub caij hauv cov qauv. Los ntawm kev ntsuas qhov kev siv ntawm cov yam ntxwv spectral kab, cov ntsiab lus ntawm txhua yam hauv cov qauv tuaj yeem txiav txim siab. Txoj kev no tsuas yog siv rau kev tsom xam ntawm cov hlau thiab alloys, tshwj xeeb tshaj yog nyob rau hauv metallurgy, hlau ua, cov ntaub ntawv science thiab lwm yam kev lag luam.
Cov txheej txheem no tau siv dav hauv chav kuaj thiab kev lag luam rau kev tsom xam ntau thiab kev tswj xyuas zoo ntawm scandium. Kev xaiv ntawm txoj kev tsim nyog yog nyob ntawm cov yam ntxwv xws li hom qauv, yuav tsum tau kuaj xyuas qhov txwv thiab qhov tseeb ntawm kev kuaj pom.
Daim ntawv thov tshwj xeeb ntawm scandium atomic absorption method
Hauv kev ntsuas lub ntsiab lus, atomic absorption spectroscopy muaj qhov raug siab thiab rhiab heev, muab txoj hauv kev zoo rau kev kawm cov khoom siv tshuaj, cov khoom sib xyaw, thiab cov ntsiab lus ntawm cov khoom.
Tom ntej no, peb yuav siv atomic absorption spectroscopy los ntsuas cov ntsiab lus ntawm cov hlau.
Cov kauj ruam tshwj xeeb yog raws li nram no:
Npaj cov qauv mus kuaj. Txhawm rau npaj cov kev daws teeb meem ntawm cov qauv los ntsuas, nws yog ib qho tsim nyog yuav tsum siv cov kua qaub sib xyaw rau kev zom zaub mov txhawm rau txhawm rau txhawm rau ntsuas kev ntsuas tom ntej.
Xaiv qhov haum atomic absorption spectrometer. Xaiv qhov tsim nyog atomic absorption spectrometer raws li cov khoom ntawm cov qauv los kuaj thiab qhov ntau ntawm cov ntsiab lus scandium yuav tsum ntsuas. Kho qhov ntsuas ntawm atomic absorption spectrometer. Kho qhov tsis haum ntawm atomic absorption spectrometer, nrog rau lub teeb ci, atomizer, detector, thiab lwm yam, raws li cov qauv ntsuas thiab ntsuas ntsuas.
Ntsuas qhov nqus ntawm cov khoom scandium. Muab cov qauv coj mus kuaj rau hauv atomizer thiab emit lub teeb hluav taws xob ntawm ib lub wavelength tshwj xeeb los ntawm lub teeb ci. Lub caij scandium yuav tsum tau kuaj yuav nqus cov hluav taws xob hluav taws xob no thiab ua rau lub zog hloov pauv. Ntsuas qhov nqus ntawm cov khoom scandium los ntawm lub tshuab ntes.
Xam cov ntsiab lus ntawm scandium keeb. Xam cov ntsiab lus ntawm scandium keeb raws li absorbance thiab qauv nkhaus.
Hauv kev ua haujlwm tiag tiag, nws yog qhov tsim nyog los xaiv cov kev ntsuas tsim nyog raws li qhov tshwj xeeb xav tau ntawm qhov chaw. Cov txheej txheem no tau siv dav hauv kev tshuaj xyuas thiab tshawb xyuas cov hlau hauv cov chaw sim thiab kev lag luam.
Thaum kawg ntawm peb cov lus qhia dav dav rau scandium, peb cia siab tias cov neeg nyeem tuaj yeem nkag siab tob dua thiab paub txog lub ntsiab lus zoo. Scandium, raws li lub ntsiab lus tseem ceeb hauv lub rooj zaum, tsis tsuas yog ua lub luag haujlwm tseem ceeb hauv kev tshawb fawb, tab sis kuj muaj ntau yam kev siv hauv lub neej txhua hnub thiab lwm yam haujlwm.
Los ntawm kev kawm txog cov khoom, kev siv, kev tshawb pom thiab kev siv scandium hauv kev tshawb fawb thiab thev naus laus zis niaj hnub no, peb tuaj yeem pom qhov tshwj xeeb ntxim nyiam thiab lub peev xwm ntawm lub caij no. Los ntawm cov ntaub ntawv aerospace mus rau roj teeb technology, los ntawm petrochemicals mus rau cov khoom siv kho mob, scandium plays lub luag haujlwm tseem ceeb.
Tau kawg, peb kuj yuav tsum paub tias thaum scandium ua kom yooj yim rau peb lub neej, nws kuj muaj qee qhov kev pheej hmoo. Yog li ntawd, thaum peb xav tau kev txaus siab rau cov txiaj ntsig ntawm scandium, peb kuj yuav tsum tau them sai sai rau kev siv tsim nyog thiab kev siv tus qauv kom tsis txhob muaj teeb meem tshwm sim.Scandium yog ib qho khoom tsim nyog ntawm peb qhov kev kawm tob thiab nkag siab. Hauv kev txhim kho kev tshawb fawb thiab thev naus laus zis yav tom ntej, peb cia siab tias scandium ua si nws cov txiaj ntsig tshwj xeeb hauv ntau thaj chaw thiab ua kom yooj yim dua thiab xav tsis thoob rau peb lub neej.
Post lub sij hawm: Nov-14-2024