Iimveliso
Lanthanum, 57La | |
Inombolo yeAtomic (Z) | 57 |
Isigaba kwi-STP | eqinileyo |
Indawo yokunyibilika | 1193 K (920 °C, 1688 °F) |
Indawo yokubilisa | 3737 K (3464 °C, 6267 °F) |
Ubuninzi (kufuphi ne-rt) | 6.162 g/cm3 |
xa ulwelo (kwi mp) | 5.94 g/cm3 |
Ubushushu bomxube | 6.20 kJ/mol |
Ubushushu bomphunga | 400 kJ / mol |
Umthamo wobushushu beMolar | 27.11 J/(mol·K) |
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ILanthanum(La)Oxide
I-Lanthanum oxide, ekwaziwa ngokuba ngumthombo weLanthanum ongenakunyibilika kakhulu we-thermal, yi-inorganic compound equlethe i-rare element yomhlaba i-lanthanum kunye ne-oxygen. Ifanelekile kwiglasi, i-optic kunye ne-ceramic applications, kwaye isetyenziswe kwezinye izinto ze-ferroelectric, kwaye iyindawo yokutya ye-catalysts ethile, phakathi kwezinye izinto.
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ILanthanum carbonate
ILanthanum carbonateyityuwa eyenziwe yi-lanthanum (III) cations kunye ne-carbonate anions kunye ne-chemical formula La2 (CO3)3. I-Lanthanum carbonate isetyenziswe njengento yokuqala kwi-lanthanum chemistry, ngokukodwa ekwenzeni i-oxides edibeneyo.
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ILanthanum(III) iChloride
I-Lanthanum(III) I-Chloride Heptahydrate yeyona ndawo igqwesileyo yamanzi enyibilikayo yecrystalline Lanthanum, eyikhompawundi ye-inorganic kunye ne-formula LaCl3. Yityuwa eqhelekileyo ye-lanthanum esetyenziswa kakhulu kuphando kwaye iyahambelana nekloridi. Yinto eqinileyo emhlophe enyibilikayo kakhulu emanzini nakwi-alcohols.
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ILanthanum Hydroxide
ILanthanum Hydroxidengumthombo we-crystalline weLanthanum onganyibilikiyo wamanzi, onokufumaneka ngokudibanisa i-alkali efana ne-ammonia kwizisombululo ezimanzi ze-lanthanum salts ezifana ne-lanthanum nitrate. Oku kuvelisa ijeli efana nemvula enokomiswa emoyeni. ILanthanum hydroxide ayichaphazeli kakhulu kwizinto zealkaline, kodwa inyibilika kancinane kwisisombululo esineasidi. Isetyenziswa ngokuhambelanayo neendawo eziphezulu (ezisisiseko) ze-pH.
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Lanthanum Hexaboride
Lanthanum Hexaboride (ILaB6,ikwabizwa ngokuba yi-lanthanum boride kunye ne-LaB) yikhemikhali ye-inorganic, i-boride ye-lanthanum. Njengempahla ye-ceramic ephikisayo enendawo yokunyibilika ye-2210 ° C, iLanthanum Boride ayinakunyibilika kakhulu emanzini kunye ne-hydrochloric acid, kwaye iguqulela kwi-oxide xa ishushu (i-calcined). Iisampuli ze-Stoichiometric zinemibala ebomvu-violet, ngelixa i-boron-rich rich (ngaphezulu kwe-LaB6.07) iluhlaza okwesibhakabhaka.Lanthanum Hexaboride(LaB6) iyaziwa ngokuba lukhuni kwayo, amandla omatshini, ukukhutshwa kwe-thermionic, kunye neempawu ezinamandla ze-plasmonic. Kutshanje, kuphuhliswe indlela entsha yokwenziwa kobushushu obuphakathi ukuze idibanise ngqo iLaB6 nanoparticles.