Lanthanum Carbonate yog dab tsi thiab nws daim ntawv thov, xim?

Lanthanum carbonate(lanthanum carbonate), molecular mis rau La2 (CO3) 8H2O, feem ntau muaj qee yam dej molecules. Nws yog rhombohedral siv lead ua, tuaj yeem hnov ​​​​mob nrog cov kua qaub ntau, solubility 2.38 × 10-7mol / L hauv dej ntawm 25 ° C. Nws tuaj yeem raug thermally decomposed rau hauv lanthanum trioxide ntawm 900 ° C. Nyob rau hauv tus txheej txheem ntawm thermal decomposition, nws muaj peev xwm tsim alkali. Nyob rau hauv tus txheej txheem ntawm thermal decomposition yuav tsim alkali.Lanthanum carbonatetuaj yeem tsim nrog alkali hlau carbonates los tsim cov dej-soluble carbonate complex ntsev.Lanthanum carbonateprecipitate tuaj yeem tsim tau los ntawm kev ntxiv me ntsis dhau ntawm ammonium carbonate rau dilute tov ntawm soluble lanthanum ntsev.

Khoom npe:Lanthanum Carbonate

Molecular Formula:La2 (CO3) 3

Molecular Luj: 457.85

CAS Nr. :6487-39-4

Qhov tshwm sim:: Dawb los yog xim tsis muaj xim hmoov, yooj yim soluble hauv acid, airtight.

Siv:.Lanthanum carbonateyog ib qho inorganic compound tsim los ntawm lanthanum keeb thiab carbonate ion. Nws yog characterized los ntawm muaj zog stability, tsis tshua muaj solubility thiab active tshuaj zog. Hauv kev lag luam, lanthanum carbonate tuaj yeem siv dav hauv ceramics, electronics, tshuaj thiab lwm yam haujlwm. Ntawm lawv, lanthanum carbonate plays lub luag haujlwm tseem ceeb hauv kev lag luam ceramics, tuaj yeem siv ua xim, glaze, iav additives, thiab lwm yam.; Hauv kev lag luam hluav taws xob, lanthanum carbonate tuaj yeem npaj nrog cov hluav taws xob hluav taws xob siab, qhov kub thiab txias sintering ntawm cov ntaub ntawv muaj zog, tsim nyog rau kev tsim cov khoom siv hluav taws xob siab, siv hauv kev tsim cov ternary catalysts, cemented carbide additives; hauv kev lag luam tshuaj,lanthanum carbonateyog ib qho tshuaj ntxiv rau cov tshuaj, thiab tuaj yeem siv los kho hauv cov tshuaj,lanthanum carbonateyog ib hom tshuaj additive, uas yuav siv tau rau kev kho mob ntawm hypercalcemia, hemolytic uremic syndrome thiab lwm yam kab mob, thiab nws yog haum rau kev kho mob ntawm hyperphosphatemia nyob rau hauv lub kawg-theem lub raum cov neeg mob. Hauv ib lo lus,lanthanum carbonatemuaj ntau txoj haujlwm thiab tau siv dav hauv kev lag luam chemical niaj hnub, khoom siv science, tshuaj thiab lwm yam haujlwm.

Ntim25, 50 / kg, 1000kg / tonne nyob rau hauv woven hnab, 25, 50kg / chim nyob rau hauv cardboard nruas.

Yuav ua li cas:

Lanthanum carbonateyog lub ntsiab compound rau zus tau tej cov lanthanum oxide [1-4]. Nrog rau qhov xwm txheej ceev ntawm kev tiv thaiv ib puag ncig, ammonium bicarbonate, raws li ib txwm ua dej nag rau kev npaj ntawm lanthanum carbonate, tau siv tsuas yog hauv kev tsim khoom lag luam [5-7], txawm hais tias nws muaj qhov zoo ntawm cov nqi qis thiab cov ntsiab lus tsis zoo. ntawm carbonate tau. Txawm li cas los xij, vim yog eutrophication ntawm NH + 4 hauv cov dej khib nyiab hauv kev lag luam, uas muaj kev cuam tshuam ntau dua rau ib puag ncig, cov tshuaj ammonium ntsev siv hauv kev lag luam tau muab tso rau hauv cov kev xav tau nruj dua. Raws li ib tug ntawm cov ntsiab precipitants, sodium carbonate, piv nrog ammonium bicarbonate, nyob rau hauv kev npaj ntawmlanthanum carbonate in cov txheej txheem ntawm cov dej khib nyiab tsis muaj ammonia, nitrogen impurities, yooj yim rau kev daws; piv nrog sodium bicarbonate, hloov mus rau ib puag ncig muaj zog [8 ~ 11].Lanthanum carbonatenrog sodium carbonate raws li precipitant rau kev npaj ntawm low-sodium rare ntiaj teb carbonate yog tsis tshua muaj qhia nyob rau hauv cov ntaub ntawv, uas adopts tus nqi qis, yooj yim ua hauj lwm ntawm lub zoo noj los nag txoj kev, thiab tsawg-sodium.lanthanum carbonateyog npaj los ntawm kev tswj cov txheej txheem ntawm cov tshuaj tiv thaiv.

Kev ceev faj rau kev thauj mus los ntawmlanthanum carbonate: Cov tsheb thauj mus los yuav tsum tau nruab nrog cov khoom tsim nyog thiab ntau ntawm cov khoom siv tua hluav taws thiab cov khoom siv kho mob thaum muaj xwm ceev. Nws yog nruj me ntsis txwv tsis pub sib tov thiab thauj nrog oxidizers thiab edible chemicals. Cov yeeb nkab ntawm lub tsheb thauj khoom yuav tsum tau nruab nrog cov nplaim hluav taws. Thaum cov tsheb thauj khoom siv thauj khoom siv rau kev thauj mus los, cov saw hauv av yuav tsum tau teeb tsa. Txhawm rau txo cov hluav taws xob zoo li qub uas tsim los ntawm kev co, nws tuaj yeem txhim kho qhov sib faib hauv lub tank. Nws yog txwv tsis pub thauj lossis tshem tawm cov cuab yeej siv kho tshuab thiab cov cuab yeej uas ua rau muaj qhov tawg. Nyob rau lub caij ntuj sov thaum sawv ntxov thiab yav tsaus ntuj kev thauj mus los yog qhov zoo, hauv kev thauj mus los, tiv thaiv lub hnub thiab nag thiab kub. Nyob deb ntawm qhov hluav taws kub, qhov hluav taws kub thiab qhov chaw kub kub thaum nres. Kev thauj mus los ntawm txoj kev yuav tsum tau ua raws li txoj hauv kev tau teev tseg, thiab yuav tsum tsis txhob nres hauv thaj chaw nyob thiab thaj chaw muaj neeg coob. Txoj kev tsheb ciav hlau txwv tsis pub skidding. Kev thauj ntau los ntawm cov nkoj ntoo lossis cov cement yog nruj me ntsis txwv. Cov paib phom sij thiab cov ntawv ceeb toom yuav tsum tau muab tso rau ntawm txoj kev tsheb thauj mus los raws li kev thauj mus los.

Lub cev thiab tshuaj ntsuas ntsuas (%).

Lus Cim: Cov khoom tuaj yeem tsim thiab ntim raws li cov neeg siv khoom tshwj xeeb.