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Anatase Titanium Dioxide nta
Mar 12, 2017

Anatase Titanium Dioxidenta
Muaj li ntawmtitanium dioxide, yog ib yam peb cov ntxhia hom, ob tug lwmrutile titaniumore thiab phaj. Anatase lub zog, kev mob ntau lawm thiab siv thiab rutile, thiab nws tus kheej yeej tseem muaj rutile.

Nws originated hauv igneous thiab metamorphic pob zeb nyob rau hauv cov hlab ntsha, feem ntau yog hnyuj hnyo hauv placer deposit, lub zog, ci iab tetragonal siv lead ua, thiab muaj ib tsos kob txawv. Naas ej nervation ore deposits muaj nyob rau ntau qhov chaw hauv lub Alps. Ua anatase ntau sphene weathering, yaig thiab muab nws tus kheej yeej muaj rutile. Los ntawm qhov uas muaj anatase rutile homogeneous illusion (i.e., hloov tej yam khoom muaj tus zoo tib yam) Brazil thiab roob ural detrital deposit yog ib yam thas. Hoob kawm zoo uas muaj ib yam li lwm Fe, Sn, Nb, Ta, etc. Tsis tas li, tseem pom tias cov ntsiab lus hais rare ntiaj teb thiab Y tsev neeg U, Th.

Qauv thiab morphology

Lawv siv lead ua tetragonal, a0 = 0.379 nm, c0 = 0.951 nm; Z = 4. Nyob rau hauv cov 915 ℃ rau rutile. Cov coj lub khob hliav qab, D4h - 4 / MMM (L44L25PC). Lub khob hliav qab xwb zoo li tus siv lead ua zoo, slab, ncej tag. Simplex lub ntsiab: thaum uas tig mus coj c, plaub sab square m, ib, ob chav square khob p, n, q, v e, etc.

Lub zog

Txho liab tseb, dag, ntiav ntsuab, xiav, ntiav ntshav, dawb, ntawd saib yuav luag tsis muaj kob. Striation tsis muaj kob uas kom daj daj. Vaj ntxwv kong ci. Cleaves kiag li. Hardness yog 5.5 6.5. Tus kwv tij ceev 3.82 3.97.

Nyob rau hauv polarizer, daj, daj, xiav, ntsuab, txiv kab ntxwv, daj, xiav, lub teeb ntsuab xim. Ib axis siv lead ua (-). Yam uas me me dub muaj sij hawm deev abnormality, 2 v, tsis = 2.561 2.562, pawg = 2.488 2.489.

Cuam thiab thaum lawv tseem

Anataseyog tsis ruaj tsis khov, hais dua rutile tsawg. Thawj cov neeg mob uas zoo xws li cov rutile. Raws li accessory ntxhia s crystalline pob zeb, los yog ua titanite, ilmenite, titanium magnetite kev hloov ntawm cov khoom muag. Anatase lwm lub zog, muaj mob ntau lawm, thiab siv thiab rutile yog zoo sib xws, tiam sis tsis yog li rutile ruaj khov thiab tshwm sim.


Lwm yam xov xwm

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