High Purity Cerium Oxide

Khoom npe: High Purity Cerium Oxide

Khoom npe: cerium dioxide, cerium oxide hmoov, cerium oxide txheem khoom, gadolinium-doped cerium oxide

Cov tshuaj formula: CeO2

CAS Nr: 1306-38-3

EINECS tus lej: 215-150-4

Purity: 3N/4N/5N/6N

Cov tsos mob: lub teeb daj hmoov (morphology thiab particle loj faib tuaj yeem kho raws li cov neeg siv khoom xav tau)

Molecular Luj: 172.12

Melting point: 2397 degree

Kub taw tes: 3500 degree

Qhov ceev: 7.13g / cm3

Solubility: insoluble hauv dej thiab alkali, me ntsis soluble hauv acid

Tus qauv tsim: GB / T 4155-2012

Ntim: nyob rau hauv lub raj mis yas, lined nrog cov hnab yas thiab ntim nrog argon gas rau kev tiv thaiv los yog raws li cov neeg siv khoom

 

 

5N cerium oxide txheem khoom(cov ntsiab lus impurity tuaj yeem kho raws li cov neeg siv khoom xav tau):

CeO2/REO	Ntau dua lossis sib npaug li 99.999%	Tag nrho RE Impurities	Tsawg dua lossis sib npaug li 10 ug / g
Fe	Tsawg dua los yog sib npaug rau 0.5 ug/g	Co	Tsawg dua los yog sib npaug rau 0.1 ug/g
Si	Tsawg dua lossis sib npaug li 2.5 ug / g	Cr	Tsawg dua los yog sib npaug rau 0.1 ug/g
Ca	Tsawg dua los yog sib npaug rau 3.0 ug/g	V	Tsawg dua los yog sib npaug rau 0.1 ug/g
Mg	Tsawg dua los yog sib npaug rau 0.2 ug/g	Zn	Tsawg dua los yog sib npaug rau 0.1 ug/g
Cu	Tsawg dua los yog sib npaug rau 0.1 ug/g	Mn	Tsawg dua los yog sib npaug rau 0.1 ug/g

 

6N ultra-siab purity cerium oxide:

CeO2/REO	Ntau dua lossis sib npaug li 99.9999%	Tag nrho RE Impurities	Tsawg dua los yog sib npaug rau 1.0 ug/g
Fe	Tsawg dua los yog sib npaug rau 0.01 ug/g	Co	Tsawg dua los yog sib npaug rau 0.001 ug/g
Ni	Tsawg dua los yog sib npaug rau 0.01 ug/g	Cr	Tsawg dua los yog sib npaug rau 0.01 ug/g
Ca	Tsawg dua los yog sib npaug rau 0.05 ug/g	V	Tsawg dua los yog sib npaug rau 0.01 ug/g
Mg	Tsawg dua los yog sib npaug rau 0.01 ug/g	Zn	Tsawg dua los yog sib npaug rau 0.01 ug/g
Cu	Tsawg dua los yog sib npaug rau 0.01 ug/g	Mn	Tsawg dua los yog sib npaug rau 0.01 ug/g

 

Ultrafine cerium oxide hmoov(cov ntsiab lus impurity, morphology, particle loj faib tau customized raws li tus neeg yuav tsum tau muaj):

CeO2/REO	Ntau dua lossis sib npaug li 99.9%	Tag nrho RE Impurities	Tsawg dua lossis sib npaug rau 0.1%
D50	Tsawg dua lossis sib npaug li 500nm	L.O.I	Tsawg dua lossis sib npaug rau 0.1%
Fe	Tsawg dua los yog sib npaug rau 0.5 ug/g	Co	Tsawg dua los yog sib npaug rau 0.1 ug/g
Si	Tsawg dua lossis sib npaug li 3.5 ug / g	Cr	Tsawg dua los yog sib npaug rau 0.1 ug/g
Ca	Tsawg dua lossis sib npaug li 4.5 ug / g	V	Tsawg dua los yog sib npaug rau 0.1 ug/g
Mg	Tsawg dua los yog sib npaug rau 0.2 ug/g	Zn	Tsawg dua los yog sib npaug rau 0.1 ug/g
Cu	Tsawg dua los yog sib npaug rau 0.2 ug/g	Mn	Tsawg dua los yog sib npaug rau 0.1 ug/g

 

 

Txoj kev tsim cov cerium oxide feem ntau yog oxalic acid nag lossis daus txoj kev, uas siv cerium chloride los yog cerium nitrate tov raws li raw khoom, kho tus nqi Ph rau 2 nrog oxalic acid, ntxiv ammonia dej rau precipitate cerium oxalate, heats thiab matures, cais, thiab ntxuav nws ntawm 110 degree. Qhuav thiab tom qab ntawd hlawv rau hauv cerium oxide ntawm 900 ~ 1000 degree.

CeCl2+H2C2O4+2NH4OH →CeC2O4+2H2O+2NH4Cl

 

 

1. Siv nyob rau hauv tsawg lub ntiaj teb polishing neeg sawv cev

Tsis tshua muaj lub ntiaj teb polishing hmoov muaj qhov zoo ntawm cov tshuaj tsawg, ceev polishing ceev thiab siab polishing efficiency. Thiab nws tuaj yeem hloov qhov polishing zoo thiab kev ua haujlwm ib puag ncig. Feem ntau, lub ntiaj teb tsis tshua muaj iav polishing hmoov tsuas yog siv cerium-nplua nuj oxide. Cerium oxide yog ib qho zoo heev polishing compound vim nws muaj peev xwm ib txhij polish iav siv ob qho tib si tshuaj decomposition thiab txhua yam kev sib txhuam. Cerium dioxide feem ntau yog siv rau hauv lens polishing agents, thiab tsis tshua muaj lub ntiaj teb cerium polishing hmoov yog dav siv nyob rau hauv polishing ntawm lub koob yees duab, lub koob yees duab lo ntsiab muag, TV duab raj, spectacle lo ntsiab muag, thiab lwm yam.

 

2. Siv hauv kev lag luam iav

Kev sib xyaw ntawm cerium oxide thiab titanium dioxide ua rau lub khob daj; Thaum cerium oxide yog siv rau iav decolorization, nws muaj qhov zoo ntawm kev ua haujlwm kub kub ruaj khov, tus nqi qis, thiab tsis pom lub teeb pom kev zoo. Cerium oxide yog siv los ua iav clarifier es tsis txhob siv cov tshuaj arsenic oxide los tshem cov npuas thiab cov xim xim. Nws muaj cov txiaj ntsig tseem ceeb hauv kev npaj cov iav tsis muaj xim. Cov khoom tiav lawm muaj cov dawb crystal fluorescence, zoo pob tshab, thiab txhim kho iav lub zog thiab kub ua hauj. Nyob rau tib lub sijhawm, nws kuj tshem tawm cov pa phem arsenic rau ib puag ncig thiab iav. Tsis tas li ntawd, cerium oxide ntxiv rau iav siv hauv cov tsev thiab tsheb kom txo tau qhov kev xa tawm ntawm ultraviolet rays.

 

3. Siv hauv kev tsim cov khoom siv luminescent tsawg hauv ntiaj teb

CeO2 yog ntxiv los ua tus activator rau lub ntiaj teb tsis tshua muaj peb-thawj xim phosphors uas yog cov khoom siv luminescent ntawm lub teeb txuag hluav taws xob, nrog rau cov phosphors siv hauv qhov taw qhia teeb thiab hluav taws xob ntes.

 

4. Catalyst

Cerium oxide yog ib qho zoo heev catalyst uas yuav siv tau nyob rau hauv tsheb purification, organic synthesis thiab lwm yam teb. Cerium oxide muaj cov nyhuv catalytic zoo heev thiab tuaj yeem nce cov tshuaj tiv thaiv thiab kev xaiv. Tsis tas li ntawd, cerium oxide kuj tuaj yeem siv los ua cov khoom siv hauv kev cuam tshuam xws li kev npaj hydrogen thiab kev sib txuas ntawm ammonia.

 

5. Khoom siv roj cell

Gadolinia-Doped Ceria (GDC, Gadolinia-Doped Ceria), tshuaj formula Gd: CeO2, yog ib qho ceramic electrolyte siv nyob rau hauv cov khoom oxide roj hlwb (SOFC). Nws muaj cov qauv cubic thiab qhov ntom ntawm daim ntawv oxidized yog kwv yees li 7.2g / cm3. Nws yog ib qho ntawm cov chav kawm ntawm cerium oxide-doped electrolytes uas muaj ionic conductivity ntau dua thiab ua haujlwm qis dua (<700°C) than the yttria-stabilized zirconia materials most commonly used in SOFCs.

Ntxiv rau SOFC, gadolinium-doped cerium oxide (GDC) kuj tuaj yeem siv rau hauv cov pa oxygen sensors thiab catalytic kho ntawm lub tsheb tso pa.

 

6. Cerium oxide kuj yog cov khoom siv raw rau kev npaj cov khoom siv hlau. Tsis tas li ntawd, high-purity cerium oxide yog siv dav hauv cov khoom siv semiconductor.

 

Cim npe nrov: Tuam Tshoj siab purity cerium oxide manufacturers, lwm tus neeg