21 Scandium thiab nws cov kev siv kev sim ntsuas
Txais tos rau lub ntiaj teb no ntawm cov ntsiab lus tsis meej thiab ntxim nyiam. Niaj hnub no, peb yuav tshawb cov khoom tshwj xeeb ua ke -scandiumCov. Txawm hais tias lub caij no yuav tsis muaj ntau nyob hauv peb lub neej txhua hnub, nws yog lub luag haujlwm tseem ceeb hauv kev tshawb fawb thiab kev lag luam.
Scandium, lub ntsiab lus zoo no, muaj ntau cov khoom lag luam zoo heev. Nws yog ib tug tswvcuab ntawm cov neeg tsis muaj lub ntiaj teb. Zoo li lwm yamTsis tshua muaj ntiaj teb ntsiab lus, cov qauv atomic ntawm scandium yog tag nrho ntawm kev tsis meej. Nws yog cov qauv no piv txwv uas ua rau scandium ua si ib lub luag haujlwm IREplacleable lub luag haujlwm hauv physics, chemistry thiab cov ntaub ntawv tshawb fawb.
Kev tshawb nrhiav ntawm scandium yog tag nrho ntawm cov twists thiab lem thiab kev nyuaj siab. Nws tau pib xyoo 1841, thaum lub Swedish Chemist LFNilson (1840 ~ 1899) Cia siab yuav cais lwm cov ntsiab lus los ntawm kev huvhoob lauglub ntiaj teb thaum kawm cov cuab yeej ua hluav taws xob. Tom qab 13 zaug ntawm ib feem decomposition ntawm nitrates, nws thaum kawg tau 3.5g ntawm ntshiabytterbiumNtiaj teb. Txawm li cas los xij, nws pom tias qhov hnyav atomic hnyav ntawm lub ytterbium qhov hnyav ntawm ytterbium nws tau tsis phim cov atomic ceeb ntawm ytterbium nyhav ntawm malinac ua ntej. Lub ntsej muag ntse nelson pom tau tias tej zaum yuav muaj qee lub teeb ci hauv nws. Yog li nws txuas ntxiv ua kom tiav cov txiv neej nws tau txais nrog cov txheej txheem qub. Thaum kawg, thaum tsuas yog ib-feem ntawm cov qauv tau tawm mus, ntsuas ntsuas atomic hnyav poob mus rau 167.46. Qhov txiaj ntsig no yog ze rau qhov hnyav atomic hnyav ntawm yttrium, yog li Nelson npe nws "scandium".
Txawm hais tias Nelson tau nrhiav pom Scandium, nws tsis nyiam ntau ntau los ntawm lub zej zog science vim nws qhov tsis tshua muaj kev sib cais thiab kev nyuaj hauv kev sib cais. Nws tsis tau txog thaum lub xyoo pua puv 19, thaum tshawb fawb ntawm lub ntiaj teb tsawg ntawm lub ntiaj teb tau los ua ib qho qauv, uas scandium tau rov tshawb dua thiab kawm.
Yog li, cia peb pib ntawm txoj kev taug kev no ntawm kev tshawb nrhiav scandium, kom nkag siab txog qhov no zoo li dog dig tab sis yeej ntxim nyiam.
Daim Ntawv Thov ntawm Scandium
Lub cim ntawm scandium yog sc, thiab nws tus lej atomic naj npawb yog 21. Lub ntsiab yog qhov muag muag, silvery-dawb hloov hlau. Txawm hais tias scandium tsis yog ib qho kev tshwm sim hauv lub ntiaj teb crust, nws muaj ntau daim ntawv thov tseem ceeb, feem ntau yog nyob rau hauv cov nram no:
1. AERPACACE kev lag luam: scandium txhuas yog ib lub teeb yuag, cov kev tsim hluav taws xob siab siv hauv cov dav hlau tsim hauv Aerospace. Qhov sib ntxiv ntawm scandium tuaj yeem txhim kho lub zog thiab corrosion tsis kam ntawm alloy thaum txo cov khoom siv ntom ntom nti, ua rau lub tshuab hluav taws xob sib dua thiab ntau ruaj.
2. Cov kauj vab thiab khoom siv kis las:Scandium aluminiumKuj yog siv los ua lub tsheb kauj vab, cov pab pawg ntaus pob, thiab lwm yam khoom siv kis las. Vim nws lub zog zoo tshaj plaws thiab lub teeb pom kev zoo,scandium alloytuaj yeem txhim kho kev ua tau zoo ntawm cov cuab yeej ua si, txo qhov hnyav, thiab nce qhov tsis ntev ntawm cov khoom siv.
3. Kev lag luam teeb pom kev zoo:Scandium iodideyog siv los ua ib tug muab tub lim rau hauv kev siv Xenon teeb. Xws li cov qhov muag teev tau siv rau hauv kev yees duab, kev ua yeeb yaj kiab, thiab cov khoom siv kho mob vim tias lawv cov yam ntxwv zoo heev vim tias lawv cov kev kho mob zoo nkauj heev rau lub hnub ci ntsa iab.
4. Roj hlwb:Scandium aluminiumKuj pom cov ntawv thov hauv cov roj av oxide (sofcs). Hauv cov roj teeb no,Scandium-Alloy Alloyyog siv los ua anode cov khoom, uas muaj cov haujlwm zoo thiab ruaj khov, kev pab txhim kho kev ua haujlwm tau zoo thiab ua tau zoo ntawm cov roj hlwb.
5. Kev tshawb fawb kev tshawb fawb: scandium yog siv los ua cov khoom siv ntes hauv kev tshawb fawb. Hauv nuclear physy kev sim thiab cov particle accelerators, scandium scintillation muaju yog siv los ntes hluav taws xob thiab cov ncuav.
6. Lwm cov ntaub ntawv thov: Scandium tseem siv ua qhov siab-superconductor thiab hauv qee cov tshwj xeeb los txhim kho cov khoom ntawm cov alloy. Vim kev ua haujlwm zoo dua ntawm scandium hauv cov txheej txheem anodizing, nws tseem siv rau hauv cov ntaub ntawv electrode thiab lwm yam khoom siv hluav taws xob thiab lwm yam khoom siv hluav taws xob.
Nws yog ib qho tseem ceeb kom nco ntsoov tias txawm tias nws muaj ntau cov ntawv thov, scandium kev tsim khoom thiab siv tau yog tias nws tus nqi txheeb ze, yog li nws tus nqi xav tau kom zoo siab thaum siv nws.
Lub cev cov khoom ntawm scandium caij
1. Atomic qauv: lub nucleus ntawm scandium muaj 21 protons thiab feem ntau muaj 20 tus neeg tsis muaj 20 leej. Yog li ntawd, nws cov qauv atomic hnyav (tus txheeb ze atomic mass) yog li 44.955908. Nyob rau hauv cov nqe lus ntawm atom cov qauv, hluav taws xob kev teeb tsa ntawm scandium yog 1s² 2s² 2p⁶ 2p⁶ 3p⁶ 3s².
2. Lub Xeev Lub Xeev: Scandium yog muaj nyob ntawm chav tsev kub thiab muaj silvery-dawb tsos. Nws lub xeev lub cev tuaj yeem hloov pauv raws li cov kev hloov pauv kub thiab siab.
3. Qwj: Lub ntom ntom ntawm scandium yog hais txog 2.989 g / cm3. Qhov no kuj yog qhov ntom ntom ntom nti ua rau nws lub teeb yuag.
4. Melting taw tes: lub ntsiab lus melting ntawm scandium yog hais txog 1541 degrees CelsiusSit Fahrenheit), uas qhia tau tias nws muaj lub siab yaj siab. 5. Kev npau npau: Scandium muaj qhov cub npau npau ntawm 2836 degrees Celsius (5137 degrees Fahrenheit), uas txhais tau tias nws yuav tsum muaj qhov kub kom ua rau yaj.
6. Hluav Taws Xob Zoo: Scandium yog tus neeg coj ua zoo ntawm hluav taws xob, nrog hluav taws xob tsim nyog siv hluav taws xob. Thaum tsis zoo li cov khoom siv tooj liab zoo li tooj liab lossis txhuas, nws tseem muaj txiaj ntsig hauv cov ntawv thov tshwj xeeb, xws li cov ntawv thov electrolytic thiab aerospace.
7. Thermal Conductivity: Scandium muaj qhov siab tshaj plaws thermal conductivity, ua rau nws tus neeg saib xyuas thermal zoo thaum muaj kub. Qhov no muaj txiaj ntsig hauv qee cov ntawv thov kev kub siab-ntsuas kub.
8. Crystal qauv: scandium muaj hexagonal kaw-ntim cov crystal qauv, uas txhais tau tias nws cov atoms tau ntim rau hauv cov chaw hexagons hauv lub siv lead ua.
9. Magnetism: scandium yog diamis ntawm chav tsev kub, txhais tau tias nws tsis nyiam lossis rov qab los ntawm cov hlau nplaum teb. Nws cov cwj pwm sib nqus yog cuam tshuam nrog nws cov qauv hluav taws xob.
10. Xov tooj cua: Txhua qhov ruaj khov isotopes ntawm scandium tsis yog roractive, yog li nws yog lub caij tsis yog xov tooj cua.
Scandium yog lub teeb ci, siab-melting-point hlau nrog ntau daim ntawv thov tshwj xeeb, tshwj xeeb hauv kev lag luam hauv aerospace thiab cov ntaub ntawv kev tshawb fawb. Txawm hais tias nws tsis tshua pom nyob rau hauv qhov xwm, nws cov khoom siv lub cev ua rau nws tsis zoo rau hauv ntau qhov chaw.
Tshuaj lom neeg cov khoom ntawm scandium
Scandium yog kev hloov cov hlau ntoo.
1. Atomic qauv: scandium cov qauv atomic muaj 21 cov protons thiab feem ntau yog 20 yam. Nws lub tshuab hluav taws xob yog 1s² 2s² 2p⁶ 2p⁶ 3p⁶ 3P⁶ 3S² 3S², qhia tias nws muaj ib qho tsis tau ua ib qho tsis ua haujlwm.
2. Tshuaj lom neeg lub cim thiab tus lej atomic: scandium tus cim chemical yog sc, thiab nws tus lej atomic naj npawb yog 21.
3. ElectroneGativity: Scandium muaj qhov tsis tshua muaj electronegativity ntawm txog 1.36 (raws li Paul electroneGativity). Qhov no txhais tau hais tias nws nyhav poob rau cov hluav taws xob los ua kom zoo ions.
4. Oxidation State: Scandium feem ntau muaj nyob rau hauv lub xeev +3 oxidation, uas txhais tau tias nws tau poob peb lub tshuab hluav taws xob los ua cov scil⁺ ion. Qhov no yog nws lub xeev oxidation feem ntau. Txawm hais tias Sc²⁺ thiab SCT kuj ua tau, lawv tsis muaj qhov ruaj khov thiab tsis tshua muaj.
5. Qhov sib txuas lus: Scandium tsuas yog tsim cov khoom sib txuas nrog cov khoom xws li cov pa oxygen, leej faj, nitrogen, thiab hydrogen, thiab hydrogen, thiab hydrogen, thiab hydrogen, thiab hydrogen. Qee qhov kev ntsuas scandium sib txuas nrogScandium oxide (Sc2o3) thiab scandium halides (xws liScandium chloride, SCCL3).
6. Ashivity: Scandium yog qhov sib thooj ntawm cov hlau, tab sis nws oxidizes ceev nrawm hauv scandium oxide, uas txwv tsis pub oxidation ntxiv oxidation. Qhov no tseem ua rau scandium kuj ruaj khov kuj ruaj khov thiab muaj qee qhov corrosion tsis kam.
7. Solubility: Scandium tshem tawm maj mam nyob rau hauv feem ntau cov acids, tab sis yaj yooj yim dua nyob rau hauv alkaline tej yam kev mob. Nws yog insoluble nyob rau hauv dej vim tias nws oxide zaj duab xis tiv thaiv kev ntsuas ntau ntxiv nrog cov roj av lwg me me.
8. Lanthhana-xws li tshuaj lom neeg: scandium cov tshuaj lom neeg zoo ib yam li cov ntawm Lanthanide series (lus qhia, gadolinium, neodymium, etc.), yog li nws yog qee zaum tau cais ua cov ntoo uas zoo li ib yam. Qhov kev sib thooj no yog feem ntau tshwm sim hauv Ionic Radius, cov khoom sib xyaw thiab qee qhov kev pheej hmoo.
9. isotopes: scandium muaj ntau isotopes, tsuas yog qee qhov uas nyob ruaj khov. Qhov ruaj khov yog ruaj khov isotope yog sc-45, uas muaj lub neej ntev-lub neej thiab tsis yog reporactive.
Scandium yog qhov tsawg dua cov khoom lag luam, tab sis qee yam ntawm nws cov khoom siv lub cev, tshwj xeeb tshaj plaws hauv ib qho chaw thov lub cev, tshwj xeeb tshaj yog nyob rau hauv ntau qhov chaw thov, cov ntaub ntawv kev kawm thiab qee cov ntawv thov siab.
Kev mob biological ntawm scandium
Scandium tsis yog ib qho kev tshwm sim hauv xwm. Yog li ntawd, nws tsis muaj cov khoom muaj roj ntsha hauv cov muaj sia. Cov Khoom Siv Hluav Taws Xob feem ntau muaj cov kev ua haujlwm roj ntsha, kev nqus roj ntsha, nqus pa, cov metabolism, cov metabolism thiab kev cuam tshuam ntawm cov khoom muaj sia. Txij li thaum scandium tsis yog ib qho tseem ceeb rau lub neej, tsis muaj kev paub cov muaj sia muaj kev xav tau kev xav tau lossis siv rau scandium.
Cov nyhuv ntawm scandium ntawm cov muaj sia yog feem ntau cuam tshuam nrog nws lub tshuab luam ntawv. Qee qhov isotopes ntawm scandium yog riporactive, yog li yog tias tib neeg lub cev lossis lwm yam kev muaj sia tau raug rau hluav taws xob scandium, nws yuav ua rau hluav taws xob txaus ntshai. Qhov xwm txheej no feem ntau tshwm sim hauv cov xwm txheej tshwj xeeb xws li kev tshawb fawb nuclear science, radiotheraper lossis kev huam yuaj nuclear.
Scandium tsis cuam tshuam nrog cov kab mob muaj sia thiab muaj kev phom sij hluav taws xob. Yog li ntawd, nws tsis yog ib qho tseem ceeb hauv kev muaj sia.
Scandium yog qhov tsis tshua muaj tshuaj lom neeg tshuaj, thiab nws cov kev faib tawm nyob rau hauv qhov yog tsawg tsawg. Ntawm no yog cov lus qhia ntxaws ntxaws rau kev faib tawm scandium hauv xwm:
1. Cov ntsiab lus hauv xwm: Scandium muaj nyob rau hauv cov nyiaj tsawg hauv lub ntiaj teb crust. Cov ntsiab lus nruab nrab hauv lub ntiaj teb crust yog li 0.0026 mg / kg (lossis 2.6 feem ib lab). Qhov no ua rau scandium ib ntawm cov neeg rov qab ntawm cov neeg Rarer hauv lub ntiaj teb crust.
2. Tshawb pom hauv cov zaub mov: txawm hais tias nws cov ntsiab lus tsis muaj kev txwv, scandium tuaj yeem pom hauv qee cov minerals, feem ntau yog nyob rau hauv daim ntawv ntawm oxides lossis silicates. Qee cov zaub mov muaj cov tshuaj scandium muaj xws li scandianite thiab dolomite.
3. Extraction ntawm Scandium: Vim nws qhov kev faib tawm tsawg heev hauv xwm, nws yog qhov nyuaj rau extract cov ntshiab scandium scandium. Feem ntau, scandium yog tau los ua bormeproduct ntawm txhuas smelting txheej txheem, raws li nws tshwm sim nrog txhuas hauv Bauxite.
4. Kev faib tawm: scandium yog muab faib rau hauv lub ntiaj teb, tab sis tusyees. Qee lub tebchaws xws li Tuam Tshoj, Russia, Norway, Sweden thiab Brazil muaj cov nyiaj tso tawm kev nplua nuj scandium, thaum lwm thaj tsam tsis tshua muaj lawv.
Txawm hais tias scandium muaj kev faib tawm tsawg nyob rau hauv qhov, nws ua lub luag haujlwm tseem ceeb hauv qee cov ntawv siv high-tech thiab kev lag luam, yog li nws
Extraction thiab smattting ntawm scandium caij
Scandium yog qhov tsis tshua muaj hlau ntoo, thiab nws cov tsuas thiab cov txheej txheem rho tawm yog qhov nyuaj heev. Hauv qab no yog cov lus qhia ntxaws ntxaws mus rau txoj kev tsuas thiab cov txheej txheem rho tawm ntawm Scandium lub caij:
1. Extraction ntawm Scandium: Scandium tsis muaj nyob rau hauv nws cov lus cog tseg hauv xwm, tab sis feem ntau muaj nyob rau hauv cov nyiaj hauv ores. Lub ntsiab scandium ores suav nrog vanadium scandium tshuaj ore, zircon ore, thiab yttrium ore. Cov ntsiab lus scandium nyob rau hauv cov ores no yog tsawg.
Cov txheej txheem ntawm kev rho tawm scandium feem ntau koom nrog cov kauj ruam hauv qab no:
a. Tsuas yog: khawb cov ores muaj scandium.
b. Crushing thiab iss processing: crushing thiab ua cov ees cais pab pawg muaj txiaj ntsig pab tau cov ntaub khib nyiab.
c. Flotation: Los ntawm cov flotation cov txheej txheem, ores muaj scandium yog sib cais los ntawm lwm cov impurities.
d. Kev tshem tawm thiab txo qis: Scandiumide feem ntau yog cov feem ntau yaj thiab tom qab ntawd txo mus rau nws yog tus neeg sawv cev txo qis (feem ntau yog txhuas).
e. Electrolytic extraction: Cov kev txo scandium yog rho tawm los ntawm cov txheej txheem electrolytic kom tau txais cov txheej txheem ntauscandium hlau.
3. Kev ua kom dawb huv ntawm scandium: los ntawm ntau ntau qhov kev sib tham thiab crystallization txheej txheem, kev coj dawb huv tuaj yeem txhim kho ntxiv. Ib txoj kev sib cais yog cais thiab crystallize scandium tebchaw los ntawm chlorination lossis carbonation cov txheej txheem kom tausiab-purity scandiumCov.
Nws yuav tsum tau sau tseg tias vim yog qhov tsis txaus ntseeg ntawm scandium, extraction thiab refrapact cov txheej txheem tshuaj enjection, thiab feem ntau tsim kom muaj kev pov tseg ntau thiab cov khoom lag luam. Yog li ntawd, qhov kev txiav tawm thiab rho tawm ntawm scandium lub ntsiab yog ib qhov project nyuaj, feem ntau ua ke nrog kev txiav tawm thiab cov txheej txheem rho tawm los txhim kho kev lag luam kev lag luam.
Nrhiav kev kuaj pom ntawm scandium
1. Atomic nqus tau spectrometry (AAS): atomic nqus cov qauv uas siv cov wavelengths kom txiav txim siab cov kev ntsuas ntawm cov qauv. Nws atomizing cov hnoos qeev kom raug sim nyob rau hauv cov nplaim taws, thiab tom qab ntawd ntsuas qhov kev nqus kev nqus ntawm cov qauv los ntawm kev ua piv txwv. Hom no yog tsim nyog rau kev kuaj pom ntawm cov kab ua kom pom tseeb ntawm scandium.
2. Kev txuas hniav kho qhov muag kho kho qhov muag kho qhov muag kho kho qhov muag kho tshiab Nws atomizing cov qauv thiab ua cov ntshav, thiab txiav txim siab cov nthwv dej tshwj xeeb thiab kev siv tshuaj tsw qab ntawm lub tshuab hluav taws xob.
3. Txoj kev sib txuas ntshav ntau heev (ICP-ms): inductiving txuas ntxiv thiab kev txiav txim siab siab thiab kev txheeb xyuas kev txheeb xyuas qhov tseeb thiab lw kev txheeb xyuas keeb kwm. Nws atomizing cov qauv thiab ua cov ntshav, thiab txiav txim siab qhov loj-rau-them piv ntawm scandium nyob rau hauv lub loj spectrometer. 4. X-ay fluorescence spectrometry (XRF): X-Tshav Fluorescence Spectrometry siv cov qauv fluorescence tau zoo siab los ntawm x-rays los tshawb xyuas cov ntsiab lus ntawm cov ntsiab lus ntawm cov ntsiab lus. Nws tuaj yeem sai thiab tsis muaj kev puas tsuaj txiav txim siab cov ntsiab lus ntawm scandium hauv cov qauv.
5. Kev nyeem ntawv ncaj qha rau kev nyeem ntawv tshwj xeeb Nws siv hluav taws xob hluav taws xob siab lossis arcs kom ncaj ncaj qha vaporize cov khoom hauv cov kab hauv lub xeev thiab emit cov xeeb ceem cov kab lus pom hauv lub xeev zoo siab. Txhua lub ntsiab lus muaj cov kab emission txawv, thiab nws qhov kev siv yog ib feem ntawm cov ntsiab lus ntawm lub caij hauv cov qauv. Los ntsuas qhov kev siv ntawm cov yam ntxwv zoo li no, cov ntsiab lus ntawm txhua lub ntsiab hauv cov qauv tuaj yeem txiav txim siab tuaj yeem txiav txim siab tuaj yeem txiav txim siab tuaj yeem txiav txim siab tuaj yeem txiav txim siab. Txoj kev no yog siv rau kev sib sau tshuaj ntawm cov hlau thiab alloys, tshwj xeeb tshaj yog nyob rau hauv metallurgy, hlau ua, cov ntaub ntawv kev tshawb fawb thiab lwm thaj teb.
Cov hau kev no tau siv dav hauv chav kuaj thiab kev lag luam rau kev txheeb xyuas kom ntau thiab kev tswj hwm zoo ntawm scandium. Cov kev xaiv ntawm cov qauv tsim nyog yog nyob ntawm yam xws li hom qauv qauv xws li hom qauv qauv xws li cov qauv kuaj pom thiab kev tshuaj xyuas qhov tseeb.
Daim Ntawv Thov Tshwj Xeeb ntawm Scandium atomic haum txoj kev
Nyob rau hauv kev ntsuas khoom nyob rau hauv kev ntsuas me me, atomic nqus spectroscopy muaj qhov tseeb thiab rhiab, muab txhais tau tias muaj cov tshuaj lom neeg, thiab cov ntsiab lus sib xyaw.
Tom ntej no, peb yuav siv atomic nqus tau spectroscopy los ntsuas cov ntsiab lus ntawm hlau keeb.
Cov kauj ruam tshwj xeeb yog raws li hauv qab no:
Npaj cov qauv coj mus kuaj. Txhawm rau npaj ib qho kev daws teeb meem ntawm cov qauv ntsuas kom ntsuas, nws yog feem ntau tsim nyog siv cov kua qaub sib xyaw kom yooj yim rau kev ntsuas kev ntsuas mus tom ntej.
Xaiv ib qho tsim nyog atomic nqus spectrometer. Xaiv ib qho tsim nyog atomic nqus hluav taws xob raws li cov khoom ntawm cov hnoos qeev kom kuaj thiab ntau yam ntawm scandium cov ntsiab lus yuav tsum ntsuas. Kho cov kev ntsuas ntawm cov atomic nqus spectrometer. Kho cov kev ntsuas ntawm cov atomic nqus spectrometer, suav nrog lub teeb ci, atomizer, ntsuas, raws li cov qauv xeem thiab ntsuas.
Ntsuas cov nqus ntawm scandium caij. Tso cov qauv kom raug sim rau hauv atomizer thiab emit teeb hluav taws xob ntawm ib lub nthwv dej tshwj xeeb los ntawm lub teeb ci. Lub sijhawm scandium yog kev sim yuav nqus cov hluav taws xob hluav taws xob hluav taws xob hloov kho hluav taws xob. Ntsuas cov nqus ntawm Scandium caij los ntawm ib qho ntes.
Laij cov ntsiab lus ntawm scandium caij. Laij cov ntsiab lus ntawm Scandium ntsiab raws li kev nqus thiab nkhaus txheem txheem.
Hauv kev ua haujlwm tiag tiag, nws yog ib qho tsim nyog los xaiv ntsuas ntsuas ntsuas ntsuas ntsuas ntsuas raws li cov kev xav tau ntawm lub xaib. Cov hau kev no tau siv dav hauv kev tshuaj xyuas thiab kuaj pom ntawm cov hlau hauv chaw soj ntsuam thiab kev lag luam.
Thaum kawg ntawm peb qhov kev qhia ua kom zoo rau scandium, peb cia siab tias cov nyeem tuaj yeem muaj kev nkag siab tob thiab kev paub ntawm lub ntsiab lus zoo no. Scandium, raws li ib qho tseem ceeb hauv lub rooj ntu, tsis tsuas yog ua lub luag haujlwm tseem ceeb hauv kev tshawb fawb, tab sis kuj tseem muaj ntau cov ntawv thov hauv lub neej txhua hnub thiab lwm thaj teb.
Los ntawm kev kawm cov khoom, siv, kev tshawb nrhiav kev tshawb xyuas cov txheej txheem thiab cov ntawv thov ntawm Scandium kev nthuav dav thiab ntxim nyiam thiab muaj peev xwm ntawm cov khoom no. Los ntawm Aerospace cov ntaub ntawv rau roj teeb thev naus laus zis, los ntawm Petrochemicals rau cov cuab yeej kho mob, scandium ua si lub luag haujlwm tseem ceeb.
Tau kawg, peb kuj yuav tsum paub tias thaum scandium nqa tau yooj yim rau peb lub neej, nws kuj muaj qee qhov kev pheej hmoo. Yog li ntawd, thaum peb yuav tsum txaus siab rau cov txiaj ntsig ntawm scandium, peb kuj yuav tsum tau ua kom tsis txhob muaj teeb meem Hauv kev txhim kho yav tom ntej kev tshawb fawb thiab thev naus laus zis, peb cia siab tias scandium ua si zoo dua cov teb kom yooj yim dua thiab coj kev yooj yim dua rau peb lub neej.
Lub Sijhawm Post: Nov-14-2024