Yintoni iCerium oxide?

I-Cerium oxide yinto engabonakaliyo kunye ne-chemical formula CeO2, i-yellow yellow okanye i-brown encedisa umgubo oncedisayo. Ubuninzi be-7.13g / cm3, indawo yokunyibilika i-2397 ° C, ayinyibiliki emanzini kunye ne-alkali, i-soluble kancinane kwi-asidi. Kwiqondo lobushushu le-2000 ° C kunye noxinzelelo lwe-15MPa, i-hydrogen ingasetyenziselwa ukunciphisa i-cerium oxide ukufumana i-cerium oxide. Xa iqondo lobushushu likhululekile kuma-2000°C kwaye uxinzelelo lukhululekile kwi-5MPa, i-cerium oxide iba bomvu kancinane butyheli, kwaye ipinki. Isetyenziswe njengezinto zokupholisha, i-catalyst, i-catalyst carrier (i-axiliary), i-absorber ye-ultraviolet, i-electrolyte yeeseli ze-fuel, i-absorber exhaust yemoto, i-ceramics ye-elektroniki, njl.
Ulwazi loKhuseleko
Ityuwa yei-cerium oxideizinto ezinqabileyo zomhlaba zinokunciphisa umxholo weprothrombin, zingasebenzi, zithintele ukuveliswa kwe-thrombin, i-precipitate fibrinogen, kunye ne-catalyze ukubola kwe-phosphoric acid compounds. Ubuthi bezinto ezinqabileyo zomhlaba bubuthathaka ngokunyuka kobunzima beathom.
Ukuphefumla uthuli olune-cerium kunokubangela i-pneumoconiosis yomsebenzi, kwaye i-chloride yayo inokonakalisa ulusu kwaye icaphukise i-mucous membranes yamehlo.
Ubuninzi bokugxininiswa obuvumelekileyo: i-cerium oxide 5 mg / m3, i-cerium hydroxide 5 mg / m3, iimaski zegesi kufuneka zigqitywe xa zisebenza, ukukhuselwa okukhethekileyo kufuneka kuqhutywe ukuba kukho i-radioactivity, kwaye uthuli kufuneka luthintelwe ukuba lusasazeke.
indalo
Imveliso ecocekileyo ngumgubo omhlophe onzima okanye i-cubic crystal, kwaye imveliso engcolileyo i-yellow yellow okanye i-pink ukuya kubomvu obomvu (kuba iqulethe i-lanthanum, i-praseodymium, njl.). Phantse ayinyibiliki emanzini kunye neasidi. Ukuxinana okuzalanayo 7.3. Indawo yokunyibilika: 1950°C, iqondo lokubila: 3500°C. I-Toxic, umthamo obulalayo ophakathi (i-rat, ngomlomo) malunga ne-1g / kg.
ivenkile
Gcina kungangeni moya.
Isalathiso soMgangatho
Ukwahlula ngokuhlambuluka: ukuhlambuluka okuphantsi: ukucoceka akukho ngaphezu kwe-99%, ukucoceka okuphezulu: 99.9% ~ 99.99%, ukucoceka okuphezulu ngaphezu kwe-99.999%
Ukwahlula ubungakanani besuntswana: ipowder coarse, micron, submicron, nano
Imiyalelo yoKhuseleko: Imveliso inetyhefu, ayinancasa, ayicaphukisi, ikhuselekile kwaye inokwethenjelwa, izinzile ekusebenzeni, kwaye ayisebenzi ngamanzi kunye nezinto eziphilayo. Yi-ejenti yomgangatho ophezulu wokucacisa iglasi, i-agent ye-decolorizing kunye ne-agent encedisayo yeekhemikhali.
sebenzisa
arhente oxidizing. I-Catalyst ye-organic reactions. Uhlalutyo lwentsimbi kunye nentsimbi njengesampulu esemgangathweni yesinyithi yomhlaba. Uhlalutyo lwe-redox titration. Iglasi yembala. Vitreous enamel opacifier. ialloys ukumelana nobushushu.
Isetyenziswe njengesongezo kwishishini leglasi, njengento yokugaya iglasi yeplate, kwaye njengempembelelo ye-anti-ultraviolet kwi-cosmetics. Yandisiwe yaya kusila iglasi yokubona, ilensi yamehlo, kunye netyhubhu yemifanekiso, kwaye idlala indima yokuguqula umbala, ukucacisa, kunye nokufunxa imitha ye-ultraviolet kunye nemitha ye-electron yeglasi.