Lanthanum oxide, nrog rau cov tshuaj formula La2O3 thiab CAS naj npawb 1312-81-8, yog ib tug compound uas tau attracted xim vim nws ntau yam kev siv nyob rau hauv txawv industries. Txawm li cas los xij, kev txhawj xeeb txog nws qhov muaj peev xwm toxicity tau ua rau kev soj ntsuam ze dua ntawm nws txoj kev nyab xeeb.
Lanthanum oxidefeem ntau yog siv rau hauv kev tsim cov iav kho qhov muag thiab hauv kev tsim cov ceramic capacitors thiab lwm yam khoom siv hluav taws xob. Nws cov khoom tshwj xeeb, xws li siab refractive index thiab qis dispersion, ua rau nws muaj txiaj ntsig zoo hauv kev tsim cov lo ntsiab muag zoo thiab cov khoom siv kho qhov muag. Tsis tas li ntawd, nws yog siv los ua ib qho catalyst hauv kev lag luam roj av thiab ua ib feem hauv kev tsim cov alloys tshwj xeeb.
Txawm hais tias lanthanum oxide tau siv dav, cov lus nug tseem nyob ntawm nws qhov muaj peev xwm toxicity. Cov kev tshawb fawb tau ua los ntsuas nws qhov cuam tshuam rau tib neeg kev noj qab haus huv thiab ib puag ncig. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias thaum lanthanum oxide nws tus kheej tsis suav tias yog tshuaj lom heev, qee qhov kev ceev faj yuav tsum tau ua kom txo qis kev pheej hmoo.
Inhalation ntawmlanthanum oxideplua plav lossis fumes yuav tsum tau zam vim nws yuav ua rau ua pa ua pa. Kev ua pa kom raug thiab siv cov cuab yeej tiv thaiv tus kheej, xws li lub npog ntsej muag, raug pom zoo thaum tuav cov tshuaj no hauv cov hmoov lossis aerosol daim ntawv. Kev sib cuag ntawm daim tawv nqaij nrog lanthanum oxide yuav tsum raug txo kom tsawg thiab yuav tsum tau muab ntxuav kom sai kom tsis txhob muaj qhov tshwm sim.
Hais txog kev cuam tshuam ib puag ncig, kev pov tseg ntawm lanthanum oxide yuav tsum tau tswj xyuas raws li kev tswj hwm kom tsis txhob muaj kev sib kis ntawm cov av thiab dej. Txawm hais tias nws tsis raug cais raws li cov khoom siv phom sij, lub luag haujlwm tuav thiab kev coj ua pov tseg yog qhov tseem ceeb los txo cov kev pheej hmoo rau ib puag ncig.
Nws yog ib qho tseem ceeb rau cov neeg ua hauj lwm nroglanthanum oxidekom nkag siab txog nws cov khoom thiab ua raws li cov lus qhia txog kev nyab xeeb kom txo qis kev noj qab haus huv lossis ib puag ncig. Cov tswv lag luam yuav tsum muab kev cob qhia thiab cov ntaub ntawv tsim nyog ntawm kev tuav pov hwm kev nyab xeeb ntawm qhov chaw no kom ntseeg tau tias muaj kev noj qab haus huv ntawm cov neeg ua haujlwm thiab ib puag ncig ib puag ncig.
Hauv cov ntsiab lus, txawm tiaslanthanum oxideyog ib qho khoom muaj txiaj ntsig nrog ntau yam kev siv hauv kev lag luam, nws yuav tsum tau siv nrog kev ceev faj thiab kev paub txog kev pheej hmoo. Tej yam tshwm sim tsis zoo tuaj yeem txo qis los ntawm kev ua raws li cov txheej txheem kev nyab xeeb thiab cov txheej txheem tuav. Kev tshawb fawb tsis tu ncua thiab saib xyuas lawv cov kev noj qab haus huv thiab kev cuam tshuam ib puag ncig yuav pab kom nkag siab zoo dua lawv txoj kev nyab xeeb thiab tsim cov tswv yim tswj kev pheej hmoo zoo.
Post lub sij hawm: Jun-21-2024