Cov khoom
| ceem, 58c | |
| Atomic naj npawb (Z) | 58 |
| Phase ntawm STP | khov kho |
| Melting point | 1068 K (795 ° C, 1463 ° F) |
| Boiling point | 3716 K (3443 ° C, 6229 ° F) |
| Ceev (ze rt) | 6.770 g / cm3 |
| thaum ua kua (ntawm mp) | 6.55g / cm3 |
| Kub ntawm fusion | 5.46 kJ / mol |
| Kub ntawm vaporization | 398 kJ / mol |
| Molar tshav kub muaj peev xwm | 26.94 J/(mol·K) |
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Cerium (Ce) Oxide
Cerium Oxidetseem hu ua cerium dioxide,Cerium (IV) Oxidelos yog cerium dioxide, yog ib qho oxide ntawm lub ntiaj teb tsis tshua muaj hlau cerium. Nws yog xim daj-dawb hmoov nrog cov tshuaj formula CeO2. Nws yog ib qho khoom lag luam tseem ceeb thiab qhov nruab nrab hauv kev ua kom huv ntawm cov khoom los ntawm cov ores. Cov cuab yeej tshwj xeeb ntawm cov khoom siv no yog nws qhov hloov pauv hloov mus rau qhov tsis-stoichiometric oxide.
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Cerium (III) Carbonate
Cerium (III) Carbonate Ce2 (CO3) 3, yog ntsev tsim los ntawm cerium (III) cations thiab carbonate anions. Nws yog dej insoluble Cerium uas tau yooj yim hloov mus rau lwm cov Cerium tebchaw, xws li oxide los ntawm cua sov (calcin0ation).Carbonate tebchaw kuj muab cov pa roj carbon dioxide thaum kho nrog dilute acids.
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Cerium hydroxide
Cerium (IV) Hydroxide, tseem hu ua ceric hydroxide, yog ib qho dej uas tsis muaj dej tsis muaj crystalline Cerium qhov chaw rau kev siv tau tshaj (pH) ib puag ncig. Nws yog ib qho inorganic compound nrog cov tshuaj formula Ce (OH) 4. Nws yog ib tug yellowish hmoov uas yog insoluble nyob rau hauv dej tab sis soluble nyob rau hauv concentrated acids.
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Cerium (III) Oxalate Hydrate
Cerium (III) Oxalate (Cerous Oxalate) yog inorganic cerium ntsev ntawm oxalic acid, uas yog heev insoluble nyob rau hauv dej thiab hloov mus rau oxide thaum rhuab (calcined). Nws yog dawb crystalline khoom nrog cov tshuaj formula ntawmCe2(C2O4) 3.Nws tuaj yeem tau txais los ntawm cov tshuaj tiv thaiv ntawm oxalic acid nrog cerium (III) chloride.