Cov khoom
| Lanthanum, 57La | |
| Tus lej atomic (Z) | 57 |
| Theem ntawm STP | khov kho |
| Qhov kub yaj | 1193 K (920 °C, 1688 °F) |
| Kub taw tes | 3737 K (3464 °C, 6267 °F) |
| Qhov Ceev (nyob ze rt) | 6.162 g/cm3 |
| thaum kua (ntawm mp) | 5.94 g/cm3 |
| Kub ntawm kev sib xyaw | 6.20 kJ/mol |
| Kub ntawm kev ua pa | 400 kJ/mol |
| Lub peev xwm cua sov Molar | 27.11 J/(mol·K) |
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Lanthanum Hexaboride
Lanthanum Hexaboride (LaB6,tseem hu ua lanthanum boride thiab LaB) yog ib qho tshuaj inorganic, ib qho boride ntawm lanthanum. Raws li cov khoom siv ceramic refractory uas muaj lub ntsiab lus yaj ntawm 2210 ° C, Lanthanum Boride tsis yaj hauv dej thiab hydrochloric acid, thiab hloov mus rau oxide thaum cua sov (calcined). Cov qauv Stoichiometric yog xim ntshav-violet, thaum cov boron-nplua nuj (saum toj no LaB6.07) yog xiav.Lanthanum Hexaboride(LaB6) paub txog nws qhov nyuaj, lub zog kho tshuab, thermionic emission, thiab cov khoom plasmonic muaj zog. Tsis ntev los no, ib txoj kev tsim khoom siv kub nruab nrab tau tsim los ncaj qha synthesize LaB6 nanoparticles.
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Lanthanum (La) Oxide
Lanthanum Oxide, tseem hu ua qhov chaw Lanthanum uas tsis yaj tau thermally ruaj khov, yog ib qho inorganic compound uas muaj cov khoom tsis tshua muaj lanthanum thiab oxygen. Nws yog qhov tsim nyog rau iav, optic thiab ceramic daim ntawv thov, thiab siv rau hauv qee cov ntaub ntawv ferroelectric, thiab yog cov khoom noj rau qee cov catalysts, ntawm lwm yam kev siv.
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Lanthanum Carbonate
Lanthanum Carbonateyog ib qho ntsev uas tsim los ntawm lanthanum (III) cations thiab carbonate anions nrog cov tshuaj formula La2 (CO3) 3. Lanthanum carbonate yog siv ua cov khoom pib hauv lanthanum chemistry, tshwj xeeb tshaj yog hauv kev tsim cov oxides sib xyaw.
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Lanthanum (III) Chloride
Lanthanum (III) Chloride Heptahydrate yog ib qho khoom siv crystalline Lanthanum uas yaj tau zoo heev hauv dej, uas yog ib qho inorganic compound nrog cov mis LaCl3. Nws yog ib qho ntsev ntawm lanthanum uas feem ntau siv rau hauv kev tshawb fawb thiab sib xws nrog chlorides. Nws yog ib qho khoom dawb uas yaj tau zoo heev hauv dej thiab cawv.
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Lanthanum Hydroxide
Lanthanum Hydroxideyog ib qho chaw Lanthanum crystalline uas tsis yaj hauv dej, uas tuaj yeem tau los ntawm kev ntxiv cov alkali xws li ammonia rau cov kua dej ntawm lanthanum ntsev xws li lanthanum nitrate. Qhov no tsim cov gel-zoo li precipitate uas tuaj yeem ziab hauv huab cua. Lanthanum hydroxide tsis tshua muaj zog nrog cov tshuaj alkaline, tab sis nws yaj me ntsis hauv cov kua qaub. Nws siv tau nrog cov chaw pH siab dua (yooj yim).