Cerium oxide yog ib yam khoom tsis muaj zog nrog cov tshuaj formula CeO2, lub teeb daj lossis daj xim av auxiliary hmoov.Qhov ceev 7.13g / cm3, melting point 2397 ° C, insoluble nyob rau hauv dej thiab alkali, me ntsis soluble nyob rau hauv acid.Ntawm qhov kub ntawm 2000 ° C thiab lub siab ntawm 15MPa, hydrogen tuaj yeem siv los txo cov cerium oxide kom tau txais cerium oxide.Thaum qhov kub thiab txias yog dawb ntawm 2000 ° C thiab lub siab yog dawb ntawm 5MPa, cerium oxide yog xim daj me ntsis, thiab liab.Nws yog siv los ua cov khoom siv polishing, catalyst, catalyst carrier (auxiliary), ultraviolet absorber, roj cell electrolyte, tsheb tso pa absorber, hluav taws xob ceramics, thiab lwm yam.
Cov ntaub ntawv kev ruaj ntseg
ntsev ntawmcerium oxideCov ntsiab lus tsis tshua muaj hauv ntiaj teb tuaj yeem txo cov ntsiab lus ntawm prothrombin, inactivate nws, inhibit tiam ntawm thrombin, precipitate fibrinogen, thiab catalyze decomposition ntawm phosphoric acid tebchaw.Lub toxicity ntawm lub ntiaj teb tsis tshua muaj cov ntsiab lus tsis muaj zog nrog qhov nce ntawm atomic hnyav.
Kev nqus cov plua plav uas muaj cerium tuaj yeem ua rau muaj kev ua haujlwm pneumoconiosis, thiab nws cov tshuaj chloride tuaj yeem ua rau daim tawv nqaij puas thiab ua rau cov mucous ntawm qhov muag.
Qhov siab tshaj plaws tso cai: cerium oxide 5 mg / m3, cerium hydroxide 5 mg / m3, lub npog ntsej muag roj yuav tsum hnav thaum ua haujlwm, kev tiv thaiv tshwj xeeb yuav tsum tau nqa tawm yog tias muaj hluav taws xob, thiab plua plav yuav tsum tiv thaiv kom tsis txhob tawg.
xwm
Cov khoom ntshiab yog dawb hnyav hmoov los yog cubic siv lead ua, thiab cov khoom tsis huv yog lub teeb daj lossis txawm liab liab rau xim av xim av (vim nws muaj cov kab ntawm lanthanum, praseodymium, thiab lwm yam).Yuav luag insoluble hauv dej thiab acid.Tus txheeb ze ntom ntom 7.3.Melting point: 1950 ° C, boiling point: 3500 ° C.Toxic, qhov nruab nrab ntawm kev ua kom tuag (nas, qhov ncauj) yog li 1g / kg.
khw
Khaws airtight.
Qhov ntsuas zoo
Muab faib los ntawm purity: tsawg purity: purity tsis siab tshaj 99%, siab purity: 99.9% ~ 99.99%, ultra-siab purity saum 99.999%
Muab faib los ntawm particle loj: coarse hmoov, micron, submicron, nano
Cov lus qhia txog kev nyab xeeb: Cov khoom muaj tshuaj lom, tsis qab, tsis ua rau khaus, muaj kev nyab xeeb thiab txhim khu kev qha, ruaj khov hauv kev ua haujlwm, thiab tsis hnov tsw nrog dej thiab organic teeb meem.Nws yog ib tug zoo iav clarifying tus neeg saib xyuas, decolorizing tus neeg saib xyuas thiab tshuaj auxiliary agent.
siv
oxidizing tus neeg sawv cev.Catalyst rau cov tshuaj tiv thaiv organic.Hlau thiab hlau tsom xam raws li lub ntiaj teb tsis tshua muaj hlau qauv qauv.Redox titration tsom xam.Decolorized iav.Vitreous enamel opacifier.tshav kub resistant alloys.
Siv raws li ib tug additive nyob rau hauv lub iav kev lag luam, raws li ib tug sib tsoo khoom rau phaj iav, thiab raws li ib tug anti-ultraviolet nyhuv nyob rau hauv cov tshuaj pleev ib ce.Nws tau nthuav dav mus rau kev sib tsoo ntawm cov iav tsom iav, qhov muag pom lub ntsej muag, thiab lub raj duab, thiab ua lub luag haujlwm ntawm decolorization, nthuav dav, thiab nqus cov hluav taws xob ultraviolet thiab hluav taws xob hluav taws xob ntawm lub iav.
Post lub sij hawm: Dec-14-2022