I-Lanthanum carbonate(i-lanthanum carbonate), ifomula yamangqamuzana ye-La2 (CO3) 8H2O, ngokuvamile iqukethe inani elithile lama-molecule amanzi. Kuyi-rhombohedral crystal system, ingasabela ngama-acids amaningi, ukuncibilika okungu-2.38×10-7mol/L emanzini ku-25°C. Ingaboliswa ngokushisa ibe yi-lanthanum trioxide ku-900°C. Ngenqubo yokubola okushisayo, ingakhiqiza i-alkali. In the inqubo ukubola ezishisayo kungaveza alkali.I-Lanthanum carbonateingakhiqizwa nge-alkali metal carbonates ukwakha usawoti oyinkimbinkimbi we-carbonate oncibilikayo emanzini.I-Lanthanum carbonatei-precipitate ingakhiqizwa ngokungeza i-ammonium carbonate eyeqile kancane esixazululweni se-dilute kasawoti we-lanthanum.
Igama Lomkhiqizo:I-Lanthanum carbonate
I-Molecular Formula:I-La2 (CO3) 3
Isisindo se-molecule: 457.85
I-CAS NO. :6487-39-4
Ukubukeka:: Impushana emhlophe noma engenambala, incibilika kalula ku-asidi, ayinamoya.
Isebenzisa:.I-Lanthanum carbonateiyinhlanganisela ye-inorganic eyakhiwa i-lanthanum element ne-carbonate ion. Ibonakala ngokuzinza okuqinile, ukuncibilika okuphansi kanye nezakhiwo zamakhemikhali ezisebenzayo. Embonini, i-lanthanum carbonate ingasetshenziswa kabanzi kuma-ceramics, electronics, imithi kanye neminye imikhakha. Phakathi kwabo, i-lanthanum carbonate idlala indima ebalulekile embonini ye-ceramics, ingasetshenziswa njenge-pigment, i-glaze, izithasiselo zeglasi, njll.; emkhakheni we-electronics, i-lanthanum carbonate ingalungiswa nge-conductivity ephezulu kagesi, ukushisa okuphansi kwe-sintering yezinto ezinamandla, ezifanele ukukhiqizwa kwama-capacitor aphezulu-energy-density, asetshenziselwa ukwakhiwa kwe-ternary catalysts, izithasiselo ze-carbide ezihlanganisiwe; emkhakheni wezokwelapha,i-lanthanum carbonateiyisengezo esivamile emithini, futhi ingasetshenziswa ukwelapha Emkhakheni wezokwelapha,i-lanthanum carbonateiyisengezo esivamile somuthi, esingasetshenziswa ekwelapheni i-hypercalcemia, i-hemolytic uremic syndrome nezinye izifo, futhi ifaneleka ekwelapheni i-hyperphosphatemia ezigulini ezinesifo sezinso sokuphela kwesigaba. Ngamafuphi nje,i-lanthanum carbonateinemisebenzi eminingi futhi isetshenziswa kabanzi embonini yamakhemikhali yesimanje, isayensi yezinto ezibonakalayo, imithi kanye neminye imikhakha.
Ukupakisha: 25, 50/kg, 1000kg/tonne esikhwameni nokwelukiweyo, 25, 50kg/umgqomo in cardboard sigubhu.
Ikhiqizwa kanjani:
I-Lanthanum carbonateiyinhlanganisela eyinhloko yokukhiqizwa kwe-lanthanum oxide [1-4]. Ngesimo esiphuthumayo esiphuthumayo sokuvikelwa kwemvelo, i-ammonium bicarbonate, njenge-precipitant yendabuko yokulungiswa kwe-lanthanum carbonate, isetshenziswe kakhulu ekukhiqizeni izimboni [5-7], nakuba inezinzuzo zezindleko eziphansi zokukhiqiza kanye nokuqukethwe okuphansi kokungcola. i-carbonate etholakele. Kodwa-ke, ngenxa ye-eutrophication ye-NH+4 emanzini angcolile ezimbonini, anomthelela omkhulu emvelweni, inani likasawoti we-ammonium elisetshenziswa embonini libekwe phambili izidingo eziqinile. Njengoba omunye precipitants main, sodium carbonate, uma kuqhathaniswa ammonium bicarbonate, ekulungiselelenii-lanthanum carbonate in inqubo yamanzi angcolile ezimbonini ngaphandle ammonia, nitrogen ukungcola, kulula ukubhekana nakho; uma kuqhathaniswa ne-sodium bicarbonate, ukuzivumelanisa nemvelo kunamandla [8~11].I-Lanthanum carbonateene-sodium carbonate njenge-precipitant yokulungiselela i-low-sodium eyivelakancane yomhlaba carbonate ayivamile ukubikwa ezincwadini, okwamukela ukusebenza okungabizi kakhulu, okulula kokuphakelayo kwendlela yemvula, kanye ne-sodium ephansi.i-lanthanum carbonateilungiswa ngokulawula uchungechunge lwezimo zokusabela.
Izinyathelo zokuqapha zokuhambai-lanthanum carbonate: Izimoto zokuthutha kufanele zifakwe izinhlobo ezifanele kanye nenani lempahla yokucisha umlilo kanye nemishini yokwelapha ephuthumayo evuzayo. Akuvunyelwe ngokuphelele ukuxuba nokuthutha ngama-oxidizer namakhemikhali adliwayo. Ipayipi le-exhaust lemoto ethwala impahla idinga ukuhlonyiswa nge-flame retardant. Lapho amaloli athwala amathanga esetshenziselwa ukuthutha, kufanele kufakwe amaketanga angaphansi. Ukuze unciphise ugesi omile okhiqizwa ukudlidliza, kungenzeka ukufaka izihlukanisi zemigodi ethangini. Akuvunyelwe ukulayisha noma ukwehlisa imishini namathuluzi ajwayele ukuba nezinhlansi. Ehlobo ukuthutha ekuseni nakusihlwa kuhle, ohlelweni lokuthutha, ukuvimbela ilanga nemvula kanye nokushisa okuphezulu. Hlala kude nomthombo womlilo, umthombo wokushisa nendawo yokushisa ephezulu ngesikhathi sokuma. Ukuthuthwa komgwaqo kufanele kwenziwe ngokuhambisana nemizila enqunyiwe, futhi akufanele kume ezindaweni zokuhlala nasezindaweni ezinabantu abaningi. Ezokuthutha ngojantshi azivunyelwe eqhweni. Ukuthuthwa kwenqwaba ngemikhumbi yokhuni noma kasimende akuvunyelwe ngokuqinile. Izimpawu nezaziso eziyingozi zizoposwa ezintweni zokuhamba ngokuhambisana nezidingo zokuthutha.
Izinkomba zomzimba namakhemikhali (%).
| I-La2(CO3)33N | I-La2(CO3)34N | I-La2(CO3)35N | |
| I-TREO | 45.00 | 46.00 | 46.00 |
| I-La2O3/TREO | 99.95 | 99.99 | 99.999 |
| Fe2O3 | 0.005 | 0.003 | 0.001 |
| SiO2 | 0.005 | 0.002 | 0.001 |
| I-CaO | 0.005 | 0.001 | 0.001 |
| I-SO42- | 0.050 | 0.010 | 0.010 |
| 0.005 | 0.005 | 0.005 | |
| Cl- | 0.040 | 0.010 | 0.010 |
| 0.005 | 0.003 | 0.003 | |
| Na2O | 0.005 | 0.002 | 0.001 |
| I-PbO | 0.002 | 0.001 | 0.001 |
| Ukuhlolwa kokuncibilika kwe-Acid | cacile | cacile | cacile |
Qaphela: Imikhiqizo ingakhiqizwa futhi ihlanganiswe ngokuya ngokucaciswa komsebenzisi.
Isikhathi sokuthumela: Apr-08-2024