ngaphantsi1

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)
  • ILanthanum(La)Oxide

    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.

  • ILanthanum carbonate

    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.

  • ILanthanum(III) iChloride

    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.

  • ILanthanum Hydroxide

    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.

  • Lanthanum Hexaboride

    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.