Kodi Cerium oxide ndi chiyani?

Cerium oxide ndi inorganic mankhwala okhala ndi formula CeO2, kuwala chikasu kapena chikasu bulauni wothandiza ufa. Kachulukidwe 7.13g/cm3, malo osungunuka 2397°C, osasungunuka m'madzi ndi zamchere, osungunuka pang'ono mu asidi. Pa kutentha kwa 2000 ° C ndi kuthamanga kwa 15MPa, haidrojeni ingagwiritsidwe ntchito kuchepetsa cerium oxide kuti mupeze cerium oxide. Kutentha kukakhala kopanda 2000 ° C ndipo kukakamiza kumakhala kwaulere pa 5MPa, cerium oxide imakhala yofiira pang'ono, ndi pinki. Amagwiritsidwa ntchito ngati zinthu zopukutira, chothandizira, chonyamulira chothandizira (chothandizira), chotsitsa cha ultraviolet, electrolyte yama cell cell, chotsitsa chamoto, zoumba zamagetsi, etc.
Information Security
Mchere wacerium oxideZosowa zapadziko lapansi zimatha kuchepetsa zomwe zili mu prothrombin, kuyimitsa, kuletsa m'badwo wa thrombin, precipitate fibrinogen, ndikuyambitsa kuwonongeka kwa mankhwala a phosphoric acid. Kawopsedwe wa zinthu zosowa zapadziko lapansi zimafowoka ndi kuchuluka kwa kulemera kwa atomiki.
Kukoka fumbi lokhala ndi cerium kungayambitse pneumoconiosis, ndipo chloride yake imatha kuwononga khungu ndikukwiyitsa ma mucous nembanemba m'maso.
Pazipita zololeka ndende: cerium okusayidi 5 mg/m3, cerium hydroxide 5 mg/m3, mpweya masks ayenera kuvala pamene ntchito, chitetezo chapadera ayenera kuchitidwa ngati pali radioactivity, ndi fumbi ayenera kupewedwa kumwazikana.
chilengedwe
Chopangidwa choyera ndi ufa woyera wolemera kapena cubic crystal, ndipo zonyansa zimakhala zachikasu kapena pinki mpaka zofiira zofiira (chifukwa zimakhala ndi lanthanum, praseodymium, etc.). Pafupifupi osasungunuka m'madzi ndi asidi. Kachulukidwe Wachibale 7.3. Malo osungunuka: 1950°C, malo otentha: 3500°C. Poizoni, mlingo wakupha wapakatikati (khoswe, pakamwa) ndi pafupifupi 1g/kg.
sitolo
Khalani ndi mpweya.
Quality Index
Kugawanika ndi chiyero: chiyero chochepa: chiyero sichiposa 99%, chiyero chachikulu: 99.9% ~ 99.99%, chiyero chapamwamba pamwamba pa 99.999%
Amagawidwa ndi kukula kwa tinthu: ufa wobiriwira, micron, submicron, nano
Malangizo achitetezo: Chogulitsacho ndi chapoizoni, chopanda pake, chosakwiyitsa, chotetezeka komanso chodalirika, chokhazikika pakuchita, ndipo sichimakhudzidwa ndi madzi ndi zinthu zachilengedwe. Ndi magalasi apamwamba kwambiri owunikira, decolorizing agent ndi mankhwala othandizira.
ntchito
oxidizing wothandizira. Chothandizira ma organic reaction. Kusanthula kwachitsulo ndi chitsulo ngati zitsanzo zamtundu wosowa padziko lapansi. Kusanthula kwa redox titration. galasi decolorized. Vitreous enamel opacifier. zosakaniza kutentha zosagwira.
Amagwiritsidwa ntchito ngati chowonjezera mumakampani agalasi, monga chopangira magalasi a mbale, komanso ngati anti-ultraviolet mu zodzoladzola. Yakulitsidwa mpaka pakugaya magalasi owonera, ma lens owoneka bwino, ndi chubu lachithunzi, ndipo imagwira ntchito ya decolorization, kumveketsa bwino, ndi kuyamwa kwa cheza cha ultraviolet ndi ma elekitironi a galasi.