Cerium oxide, Molecular formula ndeyeCeO2, Chinese aas:Cerium(IV) oxide, molecular uremu: 172.11500.Inogona kushandiswa seyakakwenenzverwa zvinhu, catalyst, catalyst carrier (mubatsiri), ultraviolet absorber, fuel cell electrolyte, mota exhaust absorber, Electroceramics, etc.
Chemical property
Pakupisa kwe2000 ℃ uye kudzvanywa kwe15 MPa, Cerium(III) oxide inogona kuwanikwa nekuderedzwa kwehydrogen yecerium oxide.Kana tembiricha yakasununguka pa2000 ℃, uye kudzvanywa kwakasununguka pa5 MPa, iyo cerium oxide ishoma yero, yakatsvuka zvishoma, uye pink.
Pfuma yenyama
Zvigadzirwa zvakachena zvichena zvinorema poda kana cubic crystals, nepo zvigadzirwa zvisina kujeka yero kana kunyange pink kusvika kutsvuku tsvuku (nekuda kwekuvapo kwehuwandu hwehuwandu hwelanthanum, praseodymium, nezvimwewo).
Density 7.13g/cm3, kunyungudika 2397 ℃, kuvira poindi 3500 ℃.
Insoluble mumvura uye alkali, zvishoma soluble mu acid.
Toxic, Median lethal dose (gonzo, remuromo) inenge 1g/kg.
Nzira yekugadzira
Nzira yekugadzira cerium oxide inonyanya kunaya kwe oxalic acid, ndiko kuti, kutora cerium chloride kana Cerium nitrate mhinduro seyakabikwa, kugadzirisa iyo Ph kukosha kusvika 2 ne oxalic acid, kuwedzera ammonia kukonzeresa Cerium oxalate, kupisa, kukura, kupatsanura, kugeza. , kuomesa pa110 ℃, uye kupisa pa900 ~ 1000 ℃ kuita cerium oxide.
CeCl2+H2C2O4+2NH4OH → CeC2O4+2H2O+2NH4Cl
Application
Oxidizing agents.Catalysts for Organic reaction.Shandisa zvisingawanzo pasi simbi chiyero samples yekuongorora simbi.Redox titration kuongororwa.Girazi rakasviba.Girazi enamel sunshade.Heat resistant alloy.
Inoshandiswa sechinhu chinowedzera muindasitiri yegirazi, sechinhu chekukuya chegirazi rendiro, uye zvakare sechinhu chinodzivirira UV muzvizoro.Parizvino, yakawedzerwa kusvika pakukuya magirazi, lenzi dzemaziso, uye machubhu emifananidzo, ichiita basa mukubvisa mavara, kujekesa, kutorwa kwegirazi kweUV, uye kutorwa kwetambo dzemagetsi.
Rare earth polishing effect
Rare earth polishing poda ine zvakanakira kukurumidza kupelisha kumhanya, kutsetseka kwepamusoro, uye hupenyu hurefu hwebasa.Kuenzaniswa nehupfu hwechinyakare hwehupfu - simbi tsvuku yehupfu, haina kusvibisa nharaunda uye iri nyore kubvisa kubva pane yakanamatira chinhu.Kupenya lens necerium oxide polishing poda kunotora miniti imwe kuti ipedze, uku kushandisa iron oxide polishing poda kunotora 30-60 maminetsi.Naizvozvo, isingawanzo kupenya ivhu rehupfu rine zvakanakira kuderera dosi, kukurumidza kupenya kumhanyisa, uye nepamusoro kukwenenzvera.Uye inogona kushandura iyo polishing mhando uye yekushanda nharaunda.Kazhinji, isingawanzo girazi yepasi yekupukuta poda inonyanya kushandisa cerium rich oxides.Chikonzero nei cerium oxide iri yakanyatsoshanda yekupolisha komboni imhaka yekuti inogona panguva imwe chete kupukuta girazi kuburikidza nekuora kwekemikari uye kukwesha kwemuchina.Rare earth cerium polishing powder inoshandiswa zvakanyanya kukwenenzvera makamera, lenzi dzekamera, machubhu eterevhizheni, magirazi, nezvimwewo. Parizvino, kune mafekitori akawanda asingawanzo kupesheswa pasi pevhu kuChina, ane chiyero chekugadzira chinodarika matani gumi.Baotou Tianjiao Qingmei Rare Earth Polishing Powder Co., Ltd., mubatanidzwa weSino wekune dzimwe nyika, parizvino ndeimwe yemafekitori akakura asingawanzo kupelisha pasi peupfu muChina, ane huwandu hwekugadzira hwepagore hwematani zana nemazana maviri uye zvigadzirwa zvinotengeswa mukati nekunze.
Girazi decolorization
Magirazi ese ane iron oxide, inogona kuunzwa mugirazi kuburikidza neyakagadzirwa, jecha, limestone, uye girazi rakaputsika mugirazi zvinongedzo.Kune marudzi maviri ekuvapo kwayo: imwe ine divalent iron, iyo inoshandura ruvara rwegirazi kuita rima rebhuruu, uye imwe iine trivalent iron, inoshandura ruvara rwegirazi kuita yero.Discoloration ndiyo oxidation yeayoni yesimbi divalent kuita simbi ine trivalent iron, nekuti kusimba kwemavara e-trivalent iron ingori chikamu chimwe chete mugumi cheiyo divalent iron.Wobva wawedzera toner kuti usaite kuti ruvara rwuve rwakajeka ruvara rwegirinhi.
Izvo zvisingawanzo pasi zvinhu zvinoshandiswa kugadzira girazi decolorization zvinonyanya cerium oxide uye neodymium oxide.Kutsiva yechinyakare chena arsenic decolorizing agent ine isingawanzo pasi girazi decolorizing agent haingogadzirise kushanda zvakanaka, asi zvakare inodzivirira kusvibiswa kwewhite arsenic.Cerium oxide inoshandiswa girazi decolorization ine zvakanakira sekugadzikana kwepamusoro-tembiricha kuita, mutengo wakaderera, uye hapana kutorwa kwechiedza chinooneka.
Girazi coloring
Maion epasi asingawanzo ane mavara akatsiga uye akajeka pakupisa kwepamusoro, uye anoshandiswa kusanganisa muzvinhu kugadzira magirazi emavara akasiyana.Kashoma pasi oxides akadai neodymium, praseodymium, erbium, uye cerium yakanakisa girazi colorants.Kana girazi rakajeka rine mavara epasi asingawanzo tora chiedza chinooneka newavelengths kubva pa400 kusvika 700 nanometers, rinoratidza mavara akanaka.Aya magirazi ane mavara anogona kushandiswa kugadzira zviratidzo zvemwenje zvekufamba nendege uye kufamba, dzakasiyana siyana dzekufambisa mota, uye akasiyana emhando yepamusoro-yekupedzisira hunyanzvi hwekushongedza.
Kana neodymium oxide ichiwedzerwa kune sodium karusiyamu girazi uye Lead girazi, ruvara rwegirazi runoenderana nekukora kwegirazi, zviri mukati neodymium uye kusimba kwechiedza sosi.Girazi rakatetepa rakapfava, uye girazi gobvu repepuru.Chiitiko ichi chinonzi neodymium dichroism;Praseodymium oxide inogadzira ruvara rwakasvibira rwakafanana nechromium;Erbium(III) oxide ipingi kana ichishandiswa mugirazi rePhotochromism negirazi rekristaro;Kusanganiswa kwecerium oxide uye titanium dioxide kunoita kuti girazi riyere;Praseodymium oxide uye neodymium oxide inogona kushandiswa praseodymium neodymium girazi dema.
Rare earth clarifier
Kushandisa cerium oxide panzvimbo yechinyakare arsenic oxide segirazi inojekesa mumiriri kubvisa mabhubhu uye kutsvaga zvinhu zvine mavara ane mhedzisiro yakakosha pakugadzirira kwemabhodhoro egirazi asina ruvara.Chigadzirwa chakapedzwa chine chena crystal fluorescence, kujeka kwakanaka, uye yakagadziridzwa simba regirazi uye kudzivirira kupisa.Panguva imwecheteyo, inobvisawo kusvibiswa kwearsenic kune zvakatipoteredza uye girazi.
Mukuwedzera, kuwedzera cerium oxide kune girazi rezuva nezuva, sechivako uye girazi remotokari, girazi rekristaro, rinogona kuderedza kutumirwa kwechiedza che ultraviolet, uye kushandiswa uku kwakasimudzirwa muJapan neUnited States.Nekuvandudzwa kwehupenyu hwehupenyu muChina, pachavawo nemusika wakanaka.Kuwedzera neodymium oxide kugomba regirazi rechubhu yepikicha kunogona kubvisa kupararira kwechiedza chitsvuku uye kuwedzera kujeka.Magirazi anokosha ane zvinyorwa zvisingawanzoitiki pasi rose anosanganisira girazi relanthanum, iyo ine high refractive index uye yakaderera kupararira maitiro, uye inoshandiswa zvakanyanya mukugadzirwa kwema lenses akasiyana-siyana, makamera epamusoro, uye makamera emakamera, kunyanya kune yakakwirira-yakakwirira mifananidzo yemifananidzo;Ce radiation proof girazi, inoshandiswa kuMota girazi uye TV girazi shell;Neodymium girazi rinoshandiswa se laser zvinhu uye ndiyo yakanyanya kunaka zvinhu kune hofori lasers, inonyanya kushandiswa kune inodzorwa Nuclear fusion zvishandiso.
Nguva yekutumira: Jul-06-2023