I-Cerium oxide, Ifomula yemolekyuli yiCeO2, isiteketiso sesiTshayina:I-Cerium (IV) i-oxide, ubunzima bemolekyuli: 172.11500. Ingasetyenziswa njengezinto zokupholisha, i-catalyst, catalyst carrier (umncedisi), i-absorber ye-ultraviolet, i-electrolyte yeeseli ze-fuel, i-absorber exhaust yemoto, i-Electroceramics, njl.
Ipropati yekhemikhali
Kwiqondo lokushisa le-2000 ℃ kunye noxinzelelo lwe-MPa eyi-15, i-Cerium (III) i-oxide inokufumaneka ngokunciphisa i-hydrogen ye-cerium oxide. Xa iqondo lobushushu likhululekile kwi-2000 ℃, kwaye uxinzelelo lukhululekile kwi-5 MPa, i-cerium oxide iba tyheli kancinane, ibomvu kancinci, kwaye ipinki.
Izinto eziphathekayo
Iimveliso ezicocekileyo zingumgubo onzima omhlophe okanye iikristale ze-cubic, ngelixa iimveliso ezingacocekanga zikhanya tyheli okanye zipinki ukuya kumdaka obomvu (ngenxa yobukho bemikhondo yelanthanum, praseodymium, njl.njl.).
Uxinaniso 7.13g/cm3, indawo yokunyibilika 2397 ℃, iqondo lokubila 3500 ℃..
Ayinyibiliki emanzini nakwi-alkali, ayinyibiliki kancinane kwiasidi.
Ityhefu, i-Median lethal dose (impuku, ngomlomo) imalunga ne-1g/kg.
Indlela yokuvelisa
Indlela yokuvelisa i-cerium oxide ubukhulu becala i-oxalic acid precipitation, oko kukuthi, ukuthatha isisombululo se-cerium chloride okanye i-Cerium nitrate njengento ekrwada, ukulungisa ixabiso le-Ph kwi-2 nge-oxalic acid, ukongeza i-ammonia ukukhupha i-Cerium oxalate, ukufudumeza, ukuvuthwa, ukwahlula, ukuhlamba. , ukomisa kwi-110 ℃, kunye nokutshisa kwi-900 ~ 1000 ℃ ukuya yenza i-cerium oxide.
CeCl2+H2C2O4+2NH4OH → CeC2O4+2H2O+2NH4Cl
Isicelo
Ii-oxidizing agents. IiCatalysts ze-Organic reaction. Sebenzisa iisampulu zentsimbi ezinqabileyo zomhlaba kuhlalutyo lwentsimbi. Uhlalutyo lwe-redox titration. Iglasi egudileyo. Glass enamel sunshade. Ingxubevange yokumelana nobushushu.
Isetyenziswa njengesongezo kwishishini leglasi, njengento yokugaya iglasi yepleyiti, kunye ne-agent exhathisayo ye-UV kwizinto zokuthambisa. Okwangoku, iye yandiswa ukuya ekusileni iiglasi, iilensi zamehlo, kunye neetyhubhu zemifanekiso, idlala indima ekutshintsheni umbala, ukucaciswa, ukufunxwa kweglasi ye-UV, kunye nokufunxwa kwemigca ye-elektroniki.
Isiphumo sokugudisa umhlaba esinqabileyo
Umgubo wokugudisa umhlaba onqabileyo uneengenelo zesantya sokupholisha ngokukhawuleza, ukuguda okuphezulu, kunye nobomi benkonzo ende. Xa kuthelekiswa nomgubo wendabuko wepolishi - umgubo obomvu wentsimbi, awungcolisi indalo kwaye kulula ukuyisusa kwinto ebambelelayo. Ukupholisha i-lens nge-cerium oxide ipolishi yokupholisha kuthatha umzuzu omnye ukugqiba, ngelixa ukusebenzisa i-iron oxide polishing powder kuthatha imizuzu engama-30-60. Ke ngoko, umgubo onqabileyo wokupolisha umhlaba unezibonelelo zedosi ephantsi, isantya sokupholisha ngokukhawuleza, kunye nempumelelo ephezulu yokupolisha. Kwaye inokutshintsha umgangatho wokupolisha kunye nendawo yokusebenza. Ngokubanzi, iglasi yomhlaba enqabileyo yomgubo wokupolisha ikakhulu isebenzisa i-cerium rich oxides. Isizathu sokuba kutheni i-cerium oxide iyikhompawundi esebenza ngokugqithisileyo yokupholisha kungenxa yokuba inokupholisha iglasi ngaxeshanye kuzo zombini ukubola kweekhemikhali kunye nokukhuhlana koomatshini. Umhlaba onqabileyo we-cerium polishing powder usetyenziswa kakhulu ukupolisha iikhamera, iilensi zekhamera, iityhubhu zikamabonwakude, iindondo, njl.njl I-Baotou Tianjiao Qingmei Rare Earth Polishing Powder Co., Ltd., intsebenziswano yeSino yangaphandle, ngoku yenye yezona fektri zomgubo zokupholisha emhlabeni ezinkulu eTshayina, ezinomthamo wemveliso yonyaka weetoni ezili-1200 kunye neemveliso ezithengiswa ngaphakathi nangaphandle.
Ukuchithwa kweglasi
Yonke iglasi iqulethe i-iron oxide, enokuthi ingeniswe kwiglasi ngemathiriyeli ekrwada, isanti, i-limestone, kunye neglasi eyaphukileyo kwizithako zeglasi. Kukho iindlela ezimbini zobukho bayo: enye yi-iron divalent, ejika umbala weglasi ube luhlaza okwesibhakabhaka, kwaye enye yintsimbi ene-trivalent, ejika umbala weglasi ube tyheli. Ukutshintsha kombala kukudityaniswa kwee-iron ezidityanisiweyo zibe yintsimbi ene-trivalent, kuba ubukhulu bombala we-iron ene-trivalent sisinye kwishumi kuphela se-divalent iron. Emva koko yongeza i-toner ukuze unciphise umbala kumbala oluhlaza okhanyayo.
Izinto ezinqabileyo zomhlaba ezisetyenziselwa ukubola kweglasi ubukhulu becala ziyicerium oxide kunye neodymium oxide. Ukutshintsha i-agent emhlophe ye-arsenic decolorizing agent kunye ne-ejenti enqabileyo yokususa umbala weglasi yomhlaba ayiphuculi nje ukusebenza kakuhle, kodwa ikwanqanda ukungcoliseka kwe-arsenic emhlophe. I-Cerium oxide esetyenziselwa i-glass decolorization ineenzuzo ezifana nokusebenza okuzinzile kobushushu obuphezulu, ixabiso eliphantsi, kwaye akukho kukhanya okubonakalayo.
Umbala weglasi
Ii-ion zomhlaba ezinqabileyo zinemibala ezinzileyo kunye eqaqambileyo kumaqondo obushushu aphezulu, kwaye zisetyenziselwa ukudibanisa kwizinto ukwenza iiglasi ezinemibala eyahlukeneyo. Iioksidi zomhlaba ezinqabileyo ezifana neodymium, praseodymium, erbium, kunye necerium zezona mibalabala zeglasi ezigqwesileyo. Xa iglasi ecacileyo enemibala enqabileyo yomhlaba ifunxa ukukhanya okubonakalayo kunye namaza obude ukusuka kwi-400 ukuya kwi-700 nanometers, ibonisa imibala emihle. Ezi glasi zinemibala zinokusetyenziselwa ukwenza izibane zezibane zendlela yokuhamba ngenqwelomoya kunye nokuhamba, iimoto ezahlukeneyo zothutho, kunye nemihombiso eyahlukeneyo yobugcisa obuphezulu.
Xa i-neodymium oxide yongezwa kwiglasi ye-sodium ye-calcium kunye ne-Lead glass, umbala weglasi uxhomekeke kubukhulu beglasi, umxholo we-neodymium kunye nobukhulu bomthombo wokukhanya. Iglasi ebhityileyo ipinki ekhanyayo, kwaye iglasi eshinyeneyo ibumfusa. Le nto ibizwa ngokuba yi-neodymium dichroism; I-Praseodymium oxide ivelisa umbala oluhlaza ofana nechromium; I-Erbium(III) oxide ipinki xa isetyenziswa kwiglasi yePhotochromism kunye neglasi yecrystal; Ukudibanisa i-cerium oxide kunye ne-titanium dioxide yenza iglasi ibe tyheli; I-Praseodymium oxide kunye ne-neodymium oxide ingasetyenziselwa i-praseodymium neodymium yeglasi emnyama.
Isicacisi somhlaba esinqabileyo
Ukusebenzisa i-cerium oxide endaweni ye-arsenic oxide yendabuko njenge-agent yeglasi yokucacisa ukususa amaqamza kunye nokulandelela izinto ezinemibala kunempembelelo ebalulekileyo ekulungiseleleni iibhotile zeglasi ezingenambala. Imveliso egqityiweyo ine-crystal fluorescence emhlophe, ukungafihli kakuhle, kunye nokuphuculwa kwamandla eglasi kunye nokumelana nobushushu. Kwangaxeshanye, ikwaphelisa nongcoliseko lwe-arsenic kokusingqongileyo kunye neglasi.
Ukongeza, ukongeza i-cerium oxide kwiglasi yemihla ngemihla, njengeglasi yesakhiwo kunye nemoto, iglasi yekristale, inokunciphisa ukuhanjiswa kokukhanya kwe-ultraviolet, kwaye oku kusetyenziswa kuye kwakhuthazwa eJapan nase-United States. Ngokuphuculwa komgangatho wobomi eTshayina, kuya kubakho imarike elungileyo. Ukongeza i-neodymium oxide kwigobolondo yeglasi yetyhubhu yemifanekiso kunokuphelisa ukusasazwa kokukhanya okubomvu kunye nokwandisa ukucaca. Iiglasi ezikhethekileyo ezinezongezo zomhlaba ezinqabileyo ziquka i-lanthanum glass, ene-index ephezulu ye-refractive index kunye neempawu ezisezantsi ze-dispersion, kwaye isetyenziswa ngokubanzi ekwenzeni iilensi ezahlukeneyo, iikhamera eziphambili, kunye neekhamera zekhamera, ngokukodwa kwizixhobo zokufota eziphakamileyo; Iglasi yobungqina bemitha yeCe, esetyenziselwa iglasi yeMoto kunye neqokobhe leglasi yeTV; Iglasi yeNeodymium isetyenziswa njengemathiriyeli yelaser kwaye yeyona nto ifanelekileyo kwiilaser ezinkulu, ikakhulu ezisetyenziselwa izixhobo ezilawulwayo zeNyukliya
Ixesha lokuposa: Jul-06-2023