Mgbakwụnye Ime Anwansi Rare Ụwa: Lanthanum Oxide

Lanthanum oxide,usoro ihe omimiLa2O3, molekụla arọ 325.8091.A na-eji ya eme ihe maka imepụta ezigbo ugegbe anya na eriri anya.

Ihe onwunwe kemịkalụ

Na-agbari ntakịrị n'ime mmiri ma na-agbaze ngwa ngwa na acid iji mepụta nnu kwekọrọ.

N'ịbụ ndị na-ekpuchi ikuku, ọ dị mfe ịnweta carbon dioxide na mmiri, jiri nwayọọ nwayọọ ghọọ lanthanum carbonate.

Na-ere ọkụlanthanum oxidena-ejikọta ya na mmiri iji hapụ nnukwu okpomọkụ.

ihe onwunwe

Ọdịdị na Njirimara: White siri ike ntụ ntụ.

Njupụta: 6.51 g/mL na 25 Celsius

Ebe na-agbaze: 2315 ° C, ebe esi mmiri: 4200 ° C

Solubility: Soluble na acids na ammonium chloride, nke a na-apụghị ịsacha na mmiri na ketones.

Usoro mmepụta

1. Akụrụngwa maka usoro mmịpụta bụ ihe ngwọta nitrate ụwa na-adịghị ahụkebe mgbe mwepụ cerium gasịrị, nke nwere ihe dịka 50% La2O3, ọnụọgụ nke CeO2, 116-7% Pr6O5, na 30% Nd2O3.Ejikọtara ya na Σ A na-ewepụta ihe ngwọta nitrate ụwa na-adịghị ahụkebe na ntinye nke 320-330g/L nke RxOy wee kewapụ ya na ụwa ndị ọzọ na-adịghị ahụkebe site na iji ihe na-anọpụ iche phosphine, dimethyl heptyl methylphosphonate (P350), na P350 kerosene usoro maka 35-38 nkebi. nke mmịpụta.Ihe ngwọta fọdụrụnụ nwere lanthanum ka ejiri amonia mee ka ọ ghara ịdị, were oxalic acid butere ya, wee kpochaa ya ọkụ iji nweta ngwaahịa lanthanum oxide emechara.Ewepụtara na lanthanum phosphate cerium ore ma ọ bụ kwadebere site na ọkụ lanthanum carbonate ma ọ bụ nitrate.Enwere ike nweta ya site na kpo oku na decomposing oxalate nke lanthanum.

2. Tinye La (OH) 3 na platinum crucible, kpọrọ nkụ na 200 ℃, ọkụ na 500 ℃, na decompose n'elu 840 ℃ iji nweta lanthanum oxide.

Ngwa

A na-eji ya eme ihe maka imepụta ezigbo ugegbe anya na eriri anya.A na-ejikwa ya na ụlọ ọrụ eletrọnịkị dị ka seramiiki capacitors na ihe mgbakwunye seramiiki piezoelectric.A na-ejikwa ya dị ka ihe eji eme ihe maka mmepụta nke lanthanum borate na ihe na-eme ka ikewapụ na nnụcha mmanụ.

Ngwa ubi: A na-eji ya eme ihe maka imepụta enyo enyo nke ziri ezi alloy pụrụ iche, bọọdụ eriri anya dị elu, dabara maka ịme igwefoto, igwefoto, anya m microscope, na prisms maka ngwa ngwa anya dị elu.A na-ejikwa ya n'ichepụta seramiiki capacitors, piezoelectric ceramic dopants, na ihe ọkụ ọkụ X-ray dị ka.lanthanum bromidentụ ntụ.Ewepụtara na lanthanum phosphate cerium ore ma ọ bụ nweta site na ọkụ lanthanum carbonate ma ọ bụ nitrate.Enwere ike nweta ya site na kpo oku na decomposing oxalate nke lanthanum.A na-eji ya dị ka ihe na-akpali akpali maka mmeghachi omume dị iche iche, dị ka catalytic oxidation nke carbon monoxide mgbe a na-etinye ya na cadmium oxide, na catalytic hydrogenation nke carbon monoxide na methane mgbe a na-etinye ya na palladium.Lanthanum oxide nke etinyere na lithium oxide ma ọ bụ zirconia (1%) nwere ike iji rụpụta ihe ndọta ferrite.Ọ bụ ihe na-eme ka ọ bụrụ ihe na-arụ ọrụ nke ọma maka njikọ oxidative nke methane iji mepụta ethane na ethylene.A na-eji ya emeziwanye ndabere okpomọkụ na ihe dielectric nke barium titanate (BaTiO3) na strontium titanate (SrTiO3) ferroelectrics, yana imepụta ngwaọrụ fiber optic na enyo anya.