Lanthanide
Lanthanide, lanthanid
Tlhaloso: Lintlha tsa 57 ho isa ho 71 tafoleng ea periodic. Lentsoe le akaretsang la likarolo tse 15 ho tloha ho lanthanum ho ea ho lutetium. E hlalositsoe joalo ka Ln. Sebopeho sa elektronike sa valence ke 4f0 ~ 145d0 ~ 26s2, ea karolo ea phetoho ea ka hare;Lanthanumntle le li-electrone tsa 4f e boetse e qheleloa ka thōko tsamaisong ea lanthanide.
Taeo: Chemistry_ Inorganic chemistry_ Elements le Inorganic chemistry
Mantsoe a amanang: hydrogen sponge Nickel-metal hydride battery
Sehlopha sa likarolo tse 15 tse tšoanang pakeng tsa lanthanum lelutetiumtafoleng ea periodic e bitsoa Lanthanide. Lanthanum ke ntho ea pele ea Lanthanide, e nang le Letšoao la Lik'hemik'hale La le Atomic Nomoro ea 57. Lanthanum ke ntho e bonolo (e ka khaoloa ka ho toba ka thipa), ductile, le tšepe e tšoeu ea silevera e lahleheloang ke khanya ea eona butle-butle ha e le moeeng. Le hoja lanthanum e khetholloa e le ntho e sa tloaelehang ea lefats'e, karolo ea eona e karolong ea 28th, hoo e ka bang ka makhetlo a mararo ho feta ea loto. Lanthanum ha e na chefo e khethehileng 'meleng oa motho, empa e na le ts'ebetso e itseng ea antibacterial.
Metsoako ea Lanthanum e na le ts'ebeliso e fapaneng 'me e sebelisoa haholo ho li-catalysts, li-additives tsa khalase, mabone a carbon arc a mabone a lifoto tsa studio kapa li-projector, likarolo tse khantšang ka li-lighters le litoche, li-tubes tsa cathode ray, li-scintillator, li-electrode tsa GTAW le lihlahisoa tse ling.
E 'ngoe ea lisebelisoa tse sebelisoang bakeng sa anode ea betri ea Nickel-metal hydride ke La (Ni3.6Mn0.4Al0.3Co0.7). Ka lebaka la litšenyehelo tse phahameng tsa ho tlosa Lanthanide e 'ngoe, lanthanum e hloekileng e tla nkeloa sebaka ke tšepe e sa tloaelehang e tsoakiloeng e nang le lanthanum e fetang 50%. Li-sponge alloys tsa haerojene li na le lanthanum, e ka bolokang haeterojene e fihlang makhetlo a 400 nakong ea ho khutlisetsoa morao le ho lokolla matla a mocheso. Ka hona, li-alloys tsa hydrogen sponge li ka sebelisoa mekhoeng ea ho boloka matla.Lanthanum oxideleLanthanum hexaborideli sebelisoa e le lisebelisoa tse chesang tsa cathode ka har'a li-tubes tsa electron vacuum. Kristale ea Lanthanum hexaboride ke khanya e phahameng le mohloli oa nako e telele oa ho chesa elektronike bakeng sa li-microscopes tsa electron le Hall-effect thruster.
Lanthanum trifluoride e sebelisoa joalo ka lebone la lebone la fluorescent, le kopantsoeng leEuropium(III) fluoride,'me e sebelisoa e le filimi ea kristale ea fluoride ion selective electrode. Lanthanum trifluoride hape ke karolo ea bohlokoa ea khalase e boima ea fluoride e bitsoang ZBLAN. E na le phetisetso e ntle haholo mefuteng ea infrared mme e sebelisoa haholo lits'ebetsong tsa puisano tsa fiber optical. Cerium e ommeLanthanum(III) bromideleLanthanum(III) chloridee na le thepa ea khanya e phahameng, tharollo e nepahetseng ea matla le karabelo e potlakileng. Ke lisebelisoa tsa inorganic Scintillator, tse sebelisoang haholo khoebong bakeng sa li-neutron le γ A detector bakeng sa mahlaseli. Khalase e kentsoeng ka Lanthanum oxide e na le index e phahameng ea refractive le dispersion e tlase, hape e ka ntlafatsa khanyetso ea alkali ea khalase. E ka sebelisoa ho etsa likhalase tse khethehileng tsa optical, joalo ka khalase e monyang ea infrared, bakeng sa lik'hamera le lilense tsa telescope. Ho eketsa palo e nyane ea lanthanum ho tšepe ho ka ntlafatsa ho hanyetsa ha eona le ductility, ha ho eketsa lanthanum ho molybdenum ho ka fokotsa boima ba eona le kutloisiso ea liphetoho tsa mocheso. Lanthanum le metsoako e fapa-fapaneng ea likarolo tse ling tse sa tloaelehang tsa lefats'e (li-oxides, chloride, joalo-joalo) ke likaroloana tsa li-catalysts tse sa tšoaneng, tse kang ho senya li-catalysts.
Lanthanum carbonatee amoheloa joalo ka sethethefatsi. Ha hyperphosphatemia e hlaha ka ho hloleha ha renal, ho nka Lanthanum carbonate ho ka laola phosphate serum hore e fihle boemong ba sepheo. Lanthanum modified bentonite e ka tlosa phosphate metsing ho qoba Eutrophication ea metsi a letša. Lihlahisoa tse ngata tse hloekisitsoeng tsa letamo la ho sesa li na le lanthanum e nyenyane, e leng ho tlosa phosphate le ho fokotsa kholo ea algae. Joalo ka Horseradish peroxidase, lanthanum e sebelisoa e le electron dense tracer ho baeloji ea limolek'hule.
Nako ea poso: Aug-01-2023