Iyini i-Cerium oxide?

I-Cerium oxide iwuketshezi olungaphili olunefomula yamakhemikhali i-CeO2, impushana eyisizayo ephuzi ngokukhanyayo noma ephuzi ensundu. Ukuminyana 7.13g/cm3, indawo encibilikayo 2397°C, ayincibiliki emanzini ne-alkali, inyibilika kancane ku-asidi. Ezingeni lokushisa elingu-2000°C kanye nokucindezela kwe-15MPa, i-hydrogen ingasetshenziswa ukunciphisa i-cerium oxide ukuze kutholwe i-cerium oxide. Uma izinga lokushisa likhululekile ku-2000°C futhi ingcindezi imahhala ku-5MPa, i-cerium oxide iba phuzi ngokubomvu, futhi ibomvana. Isetshenziswa njengezinto zokupholisha, i-catalyst, catalyst carrier (isisizi), i-ultraviolet absorber, i-fuel cell electrolyte, i-absorber exhaust yezimoto, i-ceramics kagesi, njll.
Ulwazi Lokuphepha
Usawoti wei-cerium oxideizakhi zomhlaba ezingavamile zinganciphisa okuqukethwe kwe-prothrombin, zikwenze kusebenze, zivimbele ukukhiqizwa kwe-thrombin, i-precipitate fibrinogen, futhi zenze ukubola kwezinhlanganisela ze-phosphoric acid. Ubuthi bezakhi zomhlaba ezingavamile buba buthaka ngokwanda kwesisindo se-athomu.
Ukuhogela uthuli oluqukethe i-cerium kungabangela i-pneumoconiosis yomsebenzi, futhi i-chloride yayo ingalimaza isikhumba futhi icasule ulwelwesi lwamafinyila lwamehlo.
Ukuhlushwa okuphezulu okuvumelekile: i-cerium oxide 5 mg/m3, i-cerium hydroxide 5 mg/m3, imaski yegesi kufanele igqoke lapho isebenza, ukuvikelwa okukhethekile kufanele kwenziwe uma kukhona i-radioactivity, futhi uthuli kufanele luvinjwe ekuhlakazeni.
imvelo
Umkhiqizo ohlanzekile uyimpushana esindayo emhlophe noma i-cubic crystal, futhi umkhiqizo ongcolile uphuzi ngokukhanyayo noma ngisho nopinki kuya kunsundu ngokubomvu (ngoba uqukethe iminonjana ye-lanthanum, i-praseodymium, njll.). Cishe ayincibiliki emanzini ne-asidi. Ukuminyana okuhlobene 7.3. Iphuzu elincibilikayo: 1950°C, indawo abilayo: 3500°C. Inobuthi, umthamo obulalayo omaphakathi (igundane, ngomlomo) cishe u-1g/kg.
isitolo
Ungangeni moya.
Inkomba Yekhwalithi
Ihlukaniswe ngokuhlanzeka: ubumsulwa obuphansi: ubumsulwa abukho ngaphezu kuka-99%, ubumsulwa obuphezulu: 99.9% ~ 99.99%, ubumsulwa obuphezulu bungaphezulu kuka-99.999%
Ihlukaniswe ngosayizi wezinhlayiyana: impushana eqinile, i-micron, i-submicron, i-nano
Imiyalo yokuphepha: Umkhiqizo unobuthi, awunambitheki, awucunuli, uphephile futhi unokwethenjelwa, usebenza ngokuqinile, futhi awuhambisani namanzi nezinto eziphilayo. Kuyi-ejenti yekhwalithi ephezulu yokucacisa ingilazi, i-ejenti yokususa umbala kanye ne-ejenti eyisiza yamakhemikhali.
sebenzisa
i-oxidizing ejenti. I-Catalyst yokusabela kwe-organic. Ukuhlaziywa kwensimbi nensimbi njengesampula elijwayelekile lensimbi yomhlaba. Ukuhlaziywa kwe-redox titration. Ingilazi ekhishwe umbala. I-Vitreous koqweqwe lwawo opacifier. ingxubevange ukumelana nokushisa.
Isetshenziswa njengesengezo embonini yengilazi, njengento yokugaya ingilazi yepuleti, futhi njengomphumela we-anti-ultraviolet ezimonyoni. Inwetshelwe ekugayeni ingilazi yombukwane, ilensi yokubona, neshubhu lesithombe, futhi idlala indima yokukhipha umbala, ukucacisa, nokumuncwa kwemisebe ye-ultraviolet nemisebe ye-electron yengilazi.