Iimveliso
ILanthanum
Izithethantonye:Lanthanum
Ipropati yeMichiza yeLanthanum
● Inkangeleko/Umbala:oqina
● Indawo ekunyibilika kuyo: 920 °C(lit.)
● Indawo yokubila:3464 °C(lit.)
● PSA:0.00000
● Ubuninzi: 6.19 g/mL ku-25 °C(lit.)
● I-LogP: 0.00000
● I-Hydrogen Bond Donor Bala:0
● I-Hydrogen Bond Accepter Bala:0
● Ubalo lweBond eJikelekayo:0
● Kanye Ubunzima:138.906363
● Ukubala kweAthom Enzima:1
● Ukuntsonkotha:0
Ulwazi oluKhuselekileyo
● IiPictogram:
F,
T
● Iikhowudi zeeNgozi:F,T
Iluncedo
Iiklasi zeMichiza:Izinyithi -> Iintsimbi ezinqabileyo zomhlaba
I-Canonical SMILES:[La]
Iimvavanyo zeklinikhi zakutsha nje:I-Truncal Ultrasound eKhokelwe yi-Anesthesia yeNgingqi yoMtyalo kunye noHlaziyo lwe-Automatic Implantable Cardioverter Defibrillators (AICDs) kunye nePacemakers kwiZigulana zaBantwana.
Uvavanyo lweklinikhi lwakutsha nje lwe-NIPH:Ukusebenza kunye nokhuseleko lwe-sucroferric oxyhydroxide kwizigulane ze-hemodialysis
Intshayelelo eneenkcukacha
ILanthanumsisiqalelo sekhemikhali esinophawu uLa kunye nenombolo yeathomu engu-57. Yeqela lezinto ezaziwa ngokuba zii-lanthanides, eziluluhlu lweziqalelo ezili-15 zetsimbi ezibekwe kwitafile yeperiodiyo engaphantsi kweentsimbi zotshintsho.
ILanthanum yafunyanwa okokuqala ngo-1839 ngusokhemisti waseSweden uCarl Gustaf Mosander xa wayeyihlukanisa ne-cerium nitrate. Igama layo livela kwigama lesiGrike elithi "lanthanein," elithetha "ukulala efihliweyo" njengoko i-lanthanum ihlala ifunyenwe idibene nezinye izinto kwiiminerali ezahlukeneyo.
Ngendlela ecocekileyo, i-lanthanum yintsimbi ethambileyo, emhlophe-emhlophe esebenza kakhulu kwaye ifakwe i-oxidized ngokulula emoyeni. Yenye yezinto ezincinci zelanthanide kodwa ixhaphake kakhulu kunezinto ezifana negolide okanye iplatinam.
ILanthanum ifumaneka ikakhulu kwiminerali efana ne-monazite kunye ne-bastnäsite, equlethe umxube wezinto ezinqabileyo zomhlaba.
I-Lanthanum ineempawu ezininzi eziphawulekayo ezenza ukuba zibe luncedo kwizicelo ezahlukeneyo. Inomlinganiselo ophezulu wokunyibilika kwaye inokumelana namaqondo obushushu aphezulu, nto leyo eyenza ukuba ifaneleke ukusetyenziswa kwizibane eziphezulu zekhabhoni ze-arc zeprojektha bhanyabhanya, izibane zestudio, kunye nezinye izicelo ezifuna imithombo yokukhanya okukhulu. Ikwasetyenziselwa ukuveliswa kweetyhubhu ze-cathode ray (CRTs) koomabonakude kunye nabahloli bekhompyutha.
Ukongezelela, i-lanthanum isetyenziswa kwintsimi ye-catalysis, apho inokuphucula umsebenzi wezinto ezithile ezisetyenziselwa ukuphendulwa kweekhemikhali. Ikwafumene izicelo ekuveliseni iibhetri zemoto zombane ezixutyiweyo, iilensi ze-optical, kunye nesongezo kwiglasi kunye nezixhobo ze-ceramic ukuphucula amandla abo kunye nokuchasana nokuqhekeka.
Iikhompawundi zeLanthanum zisetyenziselwa amayeza ngokunjalo. Ngokomzekelo, iLanthanum carbonate inokumiselwa njenge-phosphate binder ukunceda ukulawula amanqanaba aphezulu e-phosphate egazini lezigulane ezinesifo sezintso. Isebenza ngokubophelela kwi-phosphate kwindlela yokugaya, ukuthintela ukufunxa kwayo egazini.
Ngokubanzi, i-lanthanum yinto eguquguqukayo enoluhlu lwezicelo kumashishini afana nokukhanyisa, i-electronics, i-catalysis, isayensi yezinto eziphathekayo, kunye neyeza. Iimpawu zayo ezizodwa kunye nokusebenza kwakhona kuyenza ixabiseke kwiinkalo ezahlukeneyo zobuchwepheshe kunye nezesayensi.
Isicelo
ILanthanum inezicelo ezininzi kumashishini ahlukeneyo ngenxa yeempawu zayo ezizodwa:
Ukukhanyisa:I-Lanthanum isetyenziselwa ukuveliswa kwezibane ze-carbon arc, ezisetyenziswa kwiiprojekti zefilimu, ukukhanya kwe-studio, kunye nezibane zokukhangela. Ezi zibane zivelisa ukukhanya okukhanyayo, okunamandla, okwenza ukuba zilungele izicelo ezifuna ukukhanya okuphezulu.
I-Electronics:I-Lanthanum isetyenziselwa ukuveliswa kweetyhubhu ze-cathode ray (CRTs) kumabonakude kunye nabahloli bekhompyutha. IiCRT zisebenzisa i-electron beam ukwenza imifanekiso kwiscreen, kwaye i-lanthanum iqeshwe kwi-electron gun yezi zixhobo.
Iibhetri:I-Lanthanum isetyenziselwa ukuveliswa kweebhetri ze-nickel-metal hydride (NiMH), ezisetyenziswa ngokuqhelekileyo kwiimoto zombane ezixubileyo (HEVs). I-alloys ye-Lanthanum-nickel iyingxenye ye-electrode engalunganga yebhetri, igalelo ekusebenzeni kwayo kunye namandla.
Amehlo:I-Lanthanum isetyenziselwa ukuveliswa kweelensi ezikhethekileyo kunye neeglasi. Inokuphucula isalathiso se-refractive kunye ne-dispersion properties ezi zixhobo, zibenze zibe luncedo kwizicelo ezifana nekhamera yekhamera kunye neteleskopu.
IiCatalyst zeMoto:I-Lanthanum isetyenziswe njenge-catalyst kwiinkqubo zokukhupha izithuthi. Inceda ukuguqula ukukhutshwa okuyingozi, njenge-nitrogen oxides (NOx), i-carbon monoxide (CO), kunye ne-hydrocarbons (HC), kwizinto ezinobungozi obungaphantsi.
Iglasi kunye neCeramics:I-Lanthanum oxide isetyenziselwa ukongeza kwimveliso yeglasi kunye nezixhobo ze-ceramic. Inika ubushushu obugqwesileyo kunye neempawu zokuxhathisa ukothuka, ukwenza iimveliso zokugqibela zomelele ngakumbi kwaye zingabinangozi yokonakala.
Usetyenziso lwamayeza:Iikhompawundi zeLanthanum, ezifana ne-lanthanum carbonate, zisetyenziselwa amayeza njengezibophelelo ze-phosphate kunyango lwezigulane ezinezintso ezingapheliyo. Ezi ngxube zibophelela kwi-phosphate kwindlela yokugaya, ikhusela ukufunxa kwayo egazini.
Isinyithi: I-Lanthanum inokongezwa kwii-alloys ezithile ukuphucula amandla abo kunye nokuchasana nokushisa okuphezulu. Isetyenziselwa ukuveliswa kweentsimbi ezikhethekileyo kunye ne-alloys kwizicelo ezifana ne-aerospace kunye neenjini eziphezulu zokusebenza.
Le yimizekelo embalwa yezicelo ze-lanthanum. Iipropathi zayo ezizodwa ziyenza ixabiseke kumashishini ahlukeneyo, inegalelo kwinkqubela phambili yetekhnoloji, amandla, i-optics, kunye nokhathalelo lwempilo.
