Lanthanum oxide,foromo ea limolek'huleLa2O3, boima ba molek'hule 325.8091. E sebelisoa haholo ho etsa likhalase tsa optical tse nepahetseng le likhoele tsa optical.
Thepa ea lik'hemik'hale
E qhibiliha hanyenyane metsing 'me e qhibiliha habonolo ka li-acids ho etsa matsoai a tšoanang.
E pepesitsoe moeeng, ho bonolo ho monya carbon dioxide le metsi, butle-butle e fetoha lanthanum carbonate.
Ho tukalanthanum oxidee kopana le metsi ho ntsha mocheso o mongata.
thepa e bonahalang
Ponahalo le thepa: Phofo e tiileng e tšoeu.
Boima: 6.51 g/mL ho 25 ° C
Sebaka se qhibilihang: 2315 ° C, ntlha e belang: 4200 ° C
Solubility: E qhibiliha ka har'a asiti le ammonium chloride, e sa qhibiliheng metsing le ka har'a li-ketone.
Mokhoa oa tlhahiso
1. Lintho tse tala bakeng sa mokhoa oa ho phunya ke tharollo e sa tloaelehang ea nitrate ea lefats'e ka mor'a ho tlosoa ha cerium, e nang le hoo e ka bang 50% La2O3, ho latela palo ea CeO2, 116-7% Pr6O5, le 30% Nd2O3. E kopantsoe ka har'a Σ Tharollo e sa tloaelehang ea nitrate ea lefats'e e nang le motsoako oa 320-330g/L ea RxOy e ile ea ntšoa 'me ea aroloa ho tloha linaheng tse ling tse sa tloaelehang ho sebelisoa motsoako oa phosphine o sa nke lehlakore, dimethyl heptyl methylphosphonate (P350), tsamaisong ea parafine ea P350 bakeng sa mekhahlelo ea 35-38. ya ho ntsha. Tharollo e setseng e nang le lanthanum e ne e sa sebetse ka ammonia, e tšeloa ka oxalic acid, ebe e sefshoa le ho chesoa ho fumana sehlahisoa se felileng sa lanthanum oxide. E ntšitsoe ho lanthanum phosphate cerium ore kapa e lokiselitsoe ka ho chesa lanthanum carbonate kapa nitrate. E ka boela ea fumanoa ka ho futhumatsa le ho senya oxalate ea lanthanum.
2. Beha La (OH) 3 ka platinum crucible, e omeletseng ho 200 ℃, chesa ho 500 ℃, 'me e bola ho feta 840 ℃ ho fumana lanthanum oxide.
Kopo
E sebelisoa haholo ho etsa likhalase tsa optical tse nepahetseng le likhoele tsa optical. E boetse e sebelisoa indastering ea elektroniki joalo ka li-capacitor tsa ceramic le li-additives tsa ceramic tsa piezoelectric. E boetse e sebelisoa e le thepa e tala bakeng sa tlhahiso ea lanthanum borate le e le sesosa sa karohano ea peterole le ho hloekisa.
Sebaka sa kopo: Haholo-holo e sebelisetsoa ho etsa khalase e khethehileng ea alloy precision optical, high refractive optical fiber board, e loketseng ho etsa lik'hamera, lik'hamera, lilense tsa microscope le li-prism bakeng sa lisebelisoa tse tsoetseng pele tsa optical. E boetse e sebelisoa ha ho etsoa li-capacitor tsa ceramic, li-dopants tsa ceramic tsa piezoelectric, le lisebelisoa tse khanyang tsa X-ray tse kang.lanthanum bromidephofo. E ntšitsoe ho lanthanum phosphate cerium ore kapa e fumanoang ka ho chesa lanthanum carbonate kapa nitrate. E ka boela ea fumanoa ka ho futhumatsa le ho senya oxalate ea lanthanum. E sebelisoa e le sesosa sa liketso tse fapaneng, joalo ka catalytic oxidation ea carbon monoxide ha e tšetsoe ka cadmium oxide, le catalytic hydrogenation ea carbon monoxide ho methane ha e tšeloa ka palladium. Lanthanum oxide e kentsoeng ka lithium oxide kapa zirconia (1%) e ka sebelisoa ho etsa limatlase tsa ferrite. Ke sesebelisoa se ikhethileng se ikhethileng bakeng sa ho kopanya oxidative ea methane ho hlahisa ethane le ethylene. E sebelisoa ho ntlafatsa ho itšetleha ka mocheso le thepa ea dielectric ea barium titanate (BaTiO3) le strontium titanate (SrTiO3) ferroelectrics, hammoho le ho etsa lisebelisoa tsa fiber optic le likhalase tsa optical.
Nako ea poso: Aug-08-2023