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Tus nqi sib txawv ntawm lub ntiaj teb tsis tshua muaj thaum Lub Yim Hli 24, 2023
Khoom npe nqe siab thiab qis Hlau lanthanum (yuan / ton) 25000-27000 - Cerium hlau (yuan / ton) 24000-25000 - Hlau neodymium (yuan / ton) 600000 ~ 605000 - Dysprosium hlau (yuan / Kg) (300 yuan / kg) /Kg) 9500 ~ 9800 - Pr-Nd hlau (yuan / ton) ...Nyeem ntxiv -
Khawv koob Rare Earth Element: Dysprosium
Dysprosium, cim Dy thiab atomic naj npawb 66. Nws yog lub ntiaj teb tsis tshua muaj cov ntsiab lus uas muaj xim hlau. Dysprosium yeej tsis tau pom los ua ib yam khoom hauv qhov xwm txheej, txawm hais tias nws muaj nyob hauv ntau yam minerals xws li yttrium phosphate. Qhov ntau ntawm dysprosium nyob rau hauv lub crust yog 6ppm, uas yog qis dua ...Nyeem ntxiv -
Magical Rare Earth Element: Holmium
Holmium, atomic tooj 67, atomic hnyav 164.93032, lub npe lub npe muab los ntawm qhov chaw yug ntawm tus neeg nrhiav pom. Cov ntsiab lus ntawm holmium nyob rau hauv lub crust yog 0.000115%, thiab nws tshwm sim ua ke nrog rau lwm yam tsawg lub ntiaj teb cov ntsiab lus nyob rau hauv monazite thiab tsawg ntiaj teb minerals. Lub ntuj ruaj khov isotope tsuas yog holmium 1 ...Nyeem ntxiv -
Magical Rare Earth Compound: Lanthanum Oxide
Lanthanum oxide, molecular mis La2O3, molecular hnyav 325.8091. Feem ntau yog siv rau kev tsim precision optical iav thiab optical fibers. Cov khoom siv tshuaj me ntsis soluble hauv dej thiab yooj yim soluble hauv acids los tsim cov ntsev sib xws. Tshaj tawm rau huab cua, nws yooj yim kom nqus cov pa roj carbon diox ...Nyeem ntxiv -
Koj paub ntau npaum li cas txog Lanthanide?
Lanthanide Lanthanide, lanthanid Txhais: Cov ntsiab lus 57 txog 71 nyob rau hauv daim ntawv teev sijhawm. Lub ntsiab lus dav dav rau 15 lub ntsiab lus ntawm lanthanum mus rau lutetium. Qhia ua Ln. Lub valence electron configuration yog 4f0 ~ 145d0 ~ 26s2, teej tug mus rau lub internal hloov caij; Lanthanum tsis muaj 4f electrons yog ...Nyeem ntxiv -
Neodymium caij rau laser fusion li
Neodymium, lub caij 60 ntawm lub sijhawm teem sijhawm. Neodymium yog txuam nrog praseodymium, ob qho tib si yog Lanthanide nrog cov khoom zoo sib xws. Nyob rau hauv 1885, tom qab Swedish chemist Mosander nrhiav tau cov sib tov ntawm lanthanum thiab praseodymium thiab neodymium, Austrians Welsbach ntse sib cais ...Nyeem ntxiv -
Cerium ua rau Rocket propellant roj ntau tus phooj ywg ib puag ncig
Cerium, element 58 ntawm lub sijhawm teem sijhawm. Cerium yog cov hlau tsis tshua muaj ntau tshaj plaws hauv ntiaj teb, thiab nrog rau yav dhau los pom yttrium lub caij, nws qhib qhov rooj rau kev tshawb pom ntawm lwm yam tsis tshua muaj ntiaj teb. Nyob rau hauv 1803, German kws tshawb fawb Klaprott pom ib tug tshiab oxide nyob rau hauv ib tug liab hnyav pob zeb pro ...Nyeem ntxiv -
Magical Rare Earth Compound: Cerium Oxide
Cerium oxide, Molecular mis yog CeO2, Suav alias: Cerium (IV) oxide, molecular hnyav: 172.11500. Nws tuaj yeem siv los ua cov khoom siv polishing, catalyst, catalyst carrier (tus pab), ultraviolet absorber, roj cell electrolyte, automotive pa absorber, Electroceramics, thiab lwm yam Khoom Khoom Ntawm ...Nyeem ntxiv -
Magical Rare Earth Element: Terbium
Terbium belongs rau qeb ntawm hnyav tsis tshua muaj ntiaj teb, nrog ib tug tsawg abundance nyob rau hauv lub ntiaj teb crust ntawm tsuas yog 1.1 ppm. Terbium oxide tso nyiaj tsawg dua 0.01% ntawm tag nrho cov ntiaj teb tsis tshua muaj. Txawm hais tias nyob rau hauv siab yttrium ion hom hnyav tsawg lub ntiaj teb ore nrog cov ntsiab lus siab tshaj plaws ntawm terbium, terbium conte ...Nyeem ntxiv -
Magical Rare Earth Element: Cerium
Cerium yog qhov tsis txaus ntseeg 'tus tij laug' hauv tsev neeg loj ntawm cov ntsiab lus tsis tshua muaj ntiaj teb. Ua ntej, tag nrho cov nplua nuj ntawm cov av tsis tshua muaj nyob rau hauv lub crust yog 238ppm, nrog cerium ntawm 68ppm, accounting rau 28% ntawm tag nrho cov tsawg lub ntiaj teb muaj pes tsawg leeg thiab qeb duas; Thib ob, cerium yog qhov thib ob tsawg ea ...Nyeem ntxiv -
Magical Rare Earth Elements Scandium
Scandium, nrog lub cim cim Sc thiab Atomic tooj ntawm 21, yog yooj yim soluble hauv dej, tuaj yeem cuam tshuam nrog dej kub, thiab yooj yim darkens hauv huab cua. Nws lub ntsiab valence yog +3. Nws yog feem ntau tov nrog gadolinium, erbium, thiab lwm yam ntsiab lus, nrog ib tug tsawg tawm los thiab cov ntsiab lus ntawm kwv yees li 0.0005% nyob rau hauv lub cr ...Nyeem ntxiv -
Lub ntiaj teb tej yam yees siv tsis tshua muaj caij europium
Europium, lub cim yog Eu, thiab tus lej Atomic yog 63. Raws li cov tswv cuab ntawm Lanthanide, europium feem ntau muaj + 3 valence, tab sis oxygen + 2 valence kuj muaj. Muaj tsawg dua cov tebchaw ntawm europium nrog lub xeev valence ntawm +2. Piv nrog rau lwm cov hlau hnyav, europium tsis muaj biologica tseem ceeb ...Nyeem ntxiv