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Gadolinium oxide Gadoliniumoxid Gadolinia, 12064-62-9, Gd2O3
2017-08-18 04:09  Visit:187
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Model Number: GK-310 Brand Name: GENPHOAL Key Specifications/Special Features: Oxidgadolinit: 99.99%OxidgadolinitGadolinium (III)oxideGadolinium (III)-oxidGadolinium (III)-oxidGadoliniumoxid
Digadoliniumtrioxid

Gadolinia

Gadoliniumsesquioxide

Gadoliniumtrioxide

CASnumber: 12064-62-9

Pubchem: 159427

Chemspider: 140201 yes

UNII5480D0NHLJ: yes

RTECSnumber: LW4790000

Jmol-3Dimages: image1

Molecularformula: Gd2O3

Molarmass: 362.50g/mol

Appearancewhiteodorlesspowder

Density: 7.407g/cm3(15°C)

7.07g/cm3(25°C)[1]

Meltingpoint:2420°C

Gadoliniumoxideadoptstwostructures
Cubic(cI80,Ia3), number 206)structureissimilartothatofmanganese (III)oxide
Cubicstructurefeaturestwotypesofgadoliniumsites,eachwith coordinationnumberof6butwithdifferentcoordinationgeometries
Secondpolymorphismonoclinic(pearsonsymbolmS30,spacegroupC2/m, number 12)
[2]Atroomtemperature,thecubicstructureismorestable
Phasechangetothemonoclinicstructuretakesplaceat1200°C
Above2100°Ctothemeltingpointat2420°C,ahexagonalphasedominates

Preparationandchemistry

Gadoliniumoxidecanbeformedbythermaldecompositionofthehydroxide,nitrate,carbonate,oroxalates
[3]Gadoliniumoxideformsonthesurfaceofgadoliniummetal
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    Address:Lingdinghu Industrial Zone, Luoyang, Town, Boluo County, Huizhou City, Guangdong Province. China, Huizhou, Guangdong, China (516000)
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