Cerium oxide, Molecular mis yogTus kab khiav, Suav Alias:Cee cerium (IV) oxide, txoj hnyav molecular: 172.11500. Nws tuaj yeem siv ua cov khoom siv polishing, catalyst, catallyst cab kuj (cov roj ntsha electrolyte, roj av tshuab electrolyte, electroceramics, thiab lwm yam
Cov cuab yeej tshuaj
Ntawm qhov kub ntawm 2000 ℃ thiab lub siab ntawm 15 MPa, CineCium (III) oxide tuaj yeem tau txais los ntawm hydrogen txo ntawm cerium oxide. Thaum qhov ntsuas kub yog pub dawb ntawm 2000 ℃, thiab lub siab yog pub dawb ntawm 5 MPa, tus cerium oxide me ntsis daj, liab me ntsis, thiab liab dawb.
Cuab yeej
Cov khoom ntshiab yog cov hmoov hnyav lossis cov khoom siv cubic yog lub teeb xim daj lossis lub xub ntiag los ntawm cov kab ntawm Lanthhanum, Preaseymum, thiab lwm yam).
Density 7.13g / CM3, Melting point 2397 ℃, npau tes plaub hau 3500 ℃ ..
Insoluble hauv dej thiab alkali, me ntsis soluble hauv acid.
Tshuaj lom, nruab nrab tshuaj tuag (nas, qhov ncauj) yog li 1g / kg.
Txuj Ci Ntau Lawm
Cov txheej txheem ntau lawm yog feem ntau oxalic acid kev daws teeb meem, kev ntxuav cov tshuaj lom, thiab hlawv rau ntawm 900 ~ 1000 ℃ los ua cerium oxide.
CECL2 + H2C2O4 + 2NH4OH → Cec2o4 + 2h2o + 2NH4CL
Daim ntawv thov
Oxidizing cov neeg sawv cev. Catalysts rau cov tshuaj tiv thaiv cov organic. Siv sijhawm tsis tshua muaj cov qauv hlau qauv rau kev txheeb xyuas cov hlau. Redox titration tsom xam. Discolored iav. Iav enamel Sunshade. Kub Resistant alloy.
Siv los ua kev ntxiv nyob rau hauv cov iav kev lag luam, raws li cov khoom sib tsoo rau cov iav iav, thiab tseem yog UV resensive tus neeg sawv cev hauv tshuaj pleev ib ce. Nyob rau tam sim no, nws tau raug nthuav mus rau kev sib tsoo ntawm tsom iav, thiab daim duab hlab, ua lub luag haujlwm, hloov pauv ntawm cov iav, thiab nqus ntawm kab hluav taws xob.
Lub ntiaj teb tsawg polishing cuam tshuam
Lub ntiaj teb tsawg polishing hmoov muaj qhov zoo ntawm kev nrawm polishing ceev, siab smanindness, thiab lub neej ntev. Piv nrog cov khaub ncaws hnav tsoos hmoov - hlau liab hmoov, nws tsis yog qhov yooj yim ntawm ib puag ncig thiab yooj yim kom tshem tawm ntawm cov khoom ua kom zoo nkauj. Polishing lub lens nrog cerium oxish polishing hmoov siv ib feeb kom tiav, thaum siv hlau oxishing hmoov siv 30-60 feeb. Yog li ntawd, tsis tshua muaj lub ntiaj teb polishing hmoov muaj qhov zoo ntawm cov tshuaj tsawg, nrawm polishing ceev, thiab siab polishing efficiency. Thiab nws tuaj yeem hloov cov polishing zoo thiab ua haujlwm ib puag ncig. Feem ntau, tsis tshua muaj lub ntiaj teb iav polishing hmoov feem ntau siv cerium nplua nuj oxides. Qhov vim li cas cerium oxide yog qhov ua tau zoo heev rau nws yog vim nws tuaj yeem ib txhij Polish iav los ntawm ob qho kev lom zem thiab kev sib txhuam. Tsis tshua muaj ntiaj teb Cleium polishing hmoov yog dav siv rau cov duab puab polishing, muaj cov koob yees duab ntawm cov khoom siv tsis tshua muaj neeg nyob hauv Suav teb, nrog cov nplai ntau lawm ntawm kaum tons. Baotou Tianjiao Qingmei Tsis tshua muaj hmoov rau cov khoom lag luam, yog tam sim no yog ib xyoo ntau lawm muaj peev xwm ntawm 1200 ntau lawm cov khoom lag luam thiab cov khoom lag luam muag khoom hauv tsev thiab thoob ntiaj teb.
Iav Decolorization
Txhua lub iav muaj hlau oxide, uas tuaj yeem raug coj mus rau hauv lub khob los ntawm cov ntaub ntawv raw, xuab zeb, limestone, thiab tawg iav hauv cov khoom xyaw iav. Muaj ob daim ntawv ntawm nws lub neej: ib qho yog cov duab sib txawv, uas tig lub khob xim rau hauv cov xim xiav, thiab lwm qhov yog cov xim xim rau hauv daj. Discoloration yog cov oxidation ntawm cov hlau muaj hlau ions rau hauv cov hlau tortent, vim tias cov xim siv hlau tsuas yog ib feem kaum ntawm cov neeg hlau. Tom qab ntawd ntxiv ib toner kom neutralize cov xim rau lub teeb ntsuab ntsuab.
Lub ntiaj teb tsis tshua muaj siv rau lub khob decolorization yog feem ntau cerium oxide thiab neodymium oxide. Hloov cov tsoos dawb arsenic decolorizing tus neeg sawv cev tsis muaj kev sib haum xeeb tsuas yog ua kom muaj kev ua tau zoo, tab sis kuj tseem yuav tsum tsis muaj kuab paug ntawm arsenic dawb. Creium oxide siv rau lub khob decolorization muaj qhov zoo xws li kev ua tau ruaj khov siab, tus nqi qis, thiab tsis muaj nqus ntawm lub teeb.
Khob Xim Iav
Lub ntiaj teb tsawg muaj ruaj khov thiab ci xim ntawm cov cua kub, thiab siv los sib xyaw ua ke rau cov khoom siv los tsim cov tsom iav xim. Tsis tshua muaj lub ntiaj teb Oxides xws li xws li neodymium, preodydymium, erium, thiab cerium yog cov xim zoo nkauj. Thaum pob tshab iav nrog lub ntiaj teb tsis tshua muaj xim ua kom pom lub teeb pom kev zoo ntawm 400 rau 700 nanometers, nws ua rau pom cov xim zoo nkauj. Cov iav xim xim no tuaj yeem siv los ua qhov ntsuas teeb meem rau kev pab thiab tsheb thauj mus los ntau, thiab ntau yam kev ua yeeb yam siab ua yeeb yam siab.
Thaum neodymium oxide yog ntxiv rau sodium calcium iav thiab cov xim ntawm lub khob, cov ntsiab lus ntawm neodymium thiab kev siv ntawm lub teeb ci. Cov iav nyias nyias yog lub teeb liab, thiab tuab iav yog xiav ntshav. Qhov tshwm sim no yog hu ua neodymium dichroism; Oxalium oxide ua cov xim ntsuab zoo ib yam li chromium; Erbium (III) Oxide yog liab dawb thaum siv hauv photochromism iav thiab cov iav siv lead ua; Kev sib xyaw ntawm calexide thiab titanium dioxide ua rau lub khob daj; Cov roj oxide preodymium thiab neodymium oxide tuaj yeem siv rau cov tswv yim duab neodymium dub iav.
Hauv ntiaj teb tsawg kawg nkaus
Siv Cerium oxide tsis siv cov pa oxide ib sab kom tshem cov npuas thiab cov kab muaj xim muaj txiaj ntsig zoo rau kev npaj cov kua txob iav. Cov khoom tiav tau dawb crystal fluorescence, zoo transparency, thiab txhim kho lub tshuab muaj zog thiab cua sov ua kom tsis taus. Nyob rau tib lub sijhawm, nws kuj tshem tawm cov pa phem ntawm arsenic rau ib puag ncig thiab iav.
Ib qho ntxiv, ntxiv cerium oxide rau iav txhua hnub, xws li lub tsev thiab cov iav ua pob, tuaj yeem txo cov iav ulavolet, thiab cov kev siv no tau nce qib hauv Nyiv thiab Asmeskas. Nrog kev txhim kho ntawm lub neej zoo hauv Suav teb, tseem yuav muaj kev lag luam zoo. Ntxiv rau neodymium oxide rau lub iav plhaub ntawm daim duab raj tuaj yeem tshem tawm cov dispersion ntawm lub teeb liab thiab nce qhov tseeb. Cov iav tshwj xeeb uas tsis tshua muaj lub ntiaj teb ntxiv nrog rau cov ntsiab muag ntawm ntau lub ntsiab muag, thiab cov koob yees duab qis dua, tshwj xeeb tshaj yog rau cov cav hluav taws xob siab; CE hluav taws xob pov thawj iav, siv rau lub tsheb iav thiab TV iav plhaub; Neodymium iav yog siv los ua laser khoom thiab yog cov khoom siv zoo tshaj plaws rau cov lasers loj heev, tsuas yog siv rau kev tswj hwm nuclear fusion li lawm
Lub Sijhawm Post: Jul-06-2023