Yttrium Fluoride

Khoom npe: Yttrium Fluoride

Khoom npe menyuam yaus: yttrium fluoride hmoov, anhydrous yttrium fluoride

Cov tshuaj formula: YF3

CAS Nr: 13709-49-4

EINECS tus lej: 237-257-5

Purity: 99.999%

Qhov tsos: dawb hmoov

Molecular Luj: 145.90

Melting point: 1387 degree

Kub taw tes: 2230 degree

Qhov ceev: 4.01 g / cm3

Solubility: Insoluble nyob rau hauv dej, hardly soluble nyob rau hauv hydrochloric acid, nitric acid thiab sulfuric acid, tab sis soluble nyob rau hauv perchloric acid

Txuj kev tsim khoom: N / A

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

1. Cov txheej txheem tshuaj: Dissolve yttrium oxide nyob rau hauv hydrochloric acid thiab dilute nws mus rau 100 ~ 150g / L (xws li Y2O3), tshav kub cov tshuaj rau 70 ~ 80 degree, thiab ces precipitate nrog 48% hydrofluoric acid. Lub precipitate yog ntxuav, lim, qhuav thiab pulverized, thiab nqus dej kom tau yttrium fluoride.

2. Precipitate yttrium nitrate nrog dej ammonia kom tau yttrium hydroxide. Ntxuav lub precipitate thiab rov ntxiv hydrofluoric acid kom yaj thiab evaporate nws nyob rau hauv ib lub tais platinum;

Qhuav synthesis: Muab ob peb milligrams ntawm Y2O3 rau hauv platinum crucible thiab muab tso rau hauv platinum lub tshuab nqus tsev nqus tsev vacuum, tshem tawm, thiab dhau mus rau qhuav H2 thiab HF tov roj. Qhov kub nce mus txog 700 degree thiab khaws cia rau 2 teev. Txias thiab nqus rov qab kom tshem tawm cov khoom gaseous. Ob peb milligrams ntawm cov khoom yog rhuab mus rau 1400 degree nyob rau hauv lub platinum crucible nrog lub nqus tsev vacuum ntawm 10-5~{7}}mmHg (1mmHg=133.322Pa), ces txias rau 1000 degree ntawm tus nqi. ntawm 2 degree / min, thiab thaum kawg poob sai sai rau chav tsev kub. Tau txais YF3 ib leeg siv lead ua;

Kev sib xyaw ntub dej: Dissolve 5 mus rau 15 mg Y2O3 hauv 4 mL HCl (6 mol / L), ntxiv 6 mol / L ammonia kom txog thaum cov gel zoo li hydroxide tshwm, ntxiv HCl kom paub meej cov tshuaj dua. Cov tshuaj yog muab tso rau hauv ib lub raj yas uas tiv taus HF corrosion, rhuab nyob rau hauv lub boiling dej da dej, thiab 1 mus rau 2 mL ntawm concentrated hydrofluoric acid yog ntxiv. Tom qab cua sov rau 1 teev, centrifuge thiab qhuav ntawm 100 mus rau 150 degree. Cov khoom uas tshwm sim yog rhuab nyob rau hauv lub cub hluav taws xob rau 1 teev (lub tshuab nqus tsev kawm ntawv qib 10-5 ~10-6mmHg) kom txog rau thaum t=1000~ 1400 degree .

Yttrium fluoride yog siv los npaj yttrium hlau thiab nws cov alloys, siv lead ua laser cov ntaub ntawv, up-conversion luminescent cov ntaub ntawv, tshwj xeeb iav, optical fluoride iav fiber, tshuaj sensors thiab biosensors, teeb electrodes thiab tshuaj tsuag cov ntaub ntawv, thiab lwm yam.

Yttrium fluoride, ua cov khoom siv lead ua, tuaj yeem tsim rau hauv zaj duab xis los ntawm thermal evaporation. Tus nqi evaporation yog qhov ruaj khov heev thiab cov pob tshab yog qhov zoo. Nws yog siv nyob rau hauv daim teb ntawm LED zaub.

Tsis tas li ntawd, yttrium fluoride kuj muaj peev xwm siv tau zoo hauv kev lag luam hluav taws xob. Yttrium fluoride doping tuaj yeem txhim kho cov khoom dielectric ntawm barium strontium titanate; yttrium fluoride electron txhaj txheej tuaj yeem txhim kho kev ua haujlwm ntawm OLED li; yttrium fluoride films kuj tau siv dav hauv kev tsim cov tshuaj tiv thaiv kev cuam tshuam ntawm ntau yam substrates.

Yttrium fluoride kuj tseem siv rau hauv microelectronic engraving tshuab lossis lwm lub tshuab plasma etching; yttrium fluoride kuj tseem siv tau los ua cov roj hluav taws xob siab electrolyte txheej, kub roj cell electrode txheej, oxygen rhiab sensor electrolyte txheej, oxygen rhiab sensor electrode txheej.

Cim npe nrov: Tuam Tshoj yttrium fluoride manufacturers, lwm tus neeg