Lanthanum Fluoride
Mashoko mapfupi
Chigadzirwa:Lanthanum Fluoride
Formula:LaF3
Nhamba yeCAS: 13709-38-1
Molecular uremu: 195.90
Kuwanda: 5.936 g/cm3
Kunyungudika: 1493 °C
Kuonekwa: hupfu huchena kana kuti flake
Solubility: Soluble mune yakasimba mineral acids
Kugadzikana: Zviri nyore hygroscopic
Mitauro yakawanda: LanthanFluorid, Fluorure De Lanthane, Fluoruro Del Lantano.
Application:
Lanthanum Fluoride, inonyanya kuiswa mune yakakosha girazi, kurapwa kwemvura uye catalyst, uye zvakare seyakanyanya mbishi zvinhu zvekugadzira Lanthanum Metal. Lanthanum Fluoride (LaF3) chinhu chakakosha chegirazi rinorema Fluoride rinonzi ZBLAN. Iri girazi rine chepamusoro transmittance mu infrared renji uye saka rinoshandiswa kune fiber-optical communication masisitimu. Lanthanum Fluoride inoshandiswa mune phosphor rambi coatings. Yakasanganiswa neEuropium Fluoride, inoshandiswawo mukristal membrane yeFluoride ion-selective electrodes.Lanthanum fluoride inoshandiswa kugadzira scintillators uye isingawanzo pasi crystal laser zvinhu zvinodiwa neazvino zvekurapa mufananidzo wekuratidzira tekinoroji nesainzi yenyukireya. Lanthanum fluoride inoshandiswa kugadzira fluoride girazi optical fiber uye isingawanzo pasi infrared girazi. Lanthanum fluoride inoshandiswa mukugadzira arc rambi kabhoni maelectrodes munzvimbo dzekuvhenekesa. Lanthanum fluoride inoshandiswa mukuongorora kemikari kugadzira fluoride ion selective electrodes.
Tsanangudzo
| La2O3/TREO (% min.) | 99.999 | 99.99 | 99.9 | 99 |
| TREO (% min.) | 81 | 81 | 81 | 81 |
| Rare Earth Impurities | ppm max. | ppm max. | % max. | % max. |
| CeO2/TREO Pr6O11/TREO Nd2O3/TREO Sm2O3/TREO Eu2O3/TREO Gd2O3/TREO Y2O3/TREO | 5 5 2 2 2 2 5 | 50 50 10 10 10 10 50 | 0.05 0.02 0.02 0.01 0.001 0.002 0.01 | 0.5 0.1 0.1 0.1 0.1 0.1 0.1 |
| Zvisina-Rare Earth Impurities | ppm max. | ppm max. | % max. | % max. |
| Fe2O3 SiO2 CaO CoO NiO CuO MnO2 Cr2O3 CdO PbO | 50 50 100 3 3 3 3 3 5 10 | 100 100 100 5 5 3 5 3 5 50 | 0.02 0.05 0.5 | 0.03 0.1 0.5 |
Synthetic nzira
1. Dissolve lanthanum oxide mu hydrochloric acid nemakemikari nzira uye kuderedza kusvika 100-150g / L (yakaverengwa seLa2O3). Pisa mhinduro kusvika 70-80 ℃, uye wozonaya ne48% hydrofluoric acid. Kunaya kunogezwa, kusefa, kuomeswa, kupwanywa, uye vacuum dehydrated kuti uwane lanthanum fluoride.
2. Isa LaCl3 solution ine hydrochloric acid mundiro yeplatinum uye uwedzere 40% hydrofluoric acid. Dururira mvura yakawandisa uye bvisa yakasara yakaoma.
Chitupa:
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