Dab tsi yog tungsten hexafluoride siv rau?
Tungsten hexafluoride yog ib qho tsis muaj kob, tshuaj lom thiab cov roj toxic nrog qhov ntom ntawm kwv yees li 13 g / l, uas yog hais txog 11 zaug lub ntom ntawm huab cua thiab ib qho ntawm cov roj av. Nyob rau hauv kev lag luam semiconduct, tungsten hexafluoride yog siv nyob rau hauv cov tshuaj vapor deposition (CVD) ua rau tso cov hlau tungsten hlau. Qhov tso tawm cov yeeb yaj kiab tungsten tuaj yeem siv los ua cov kev sib tshuam ntawm qhov sib tshuam ntawm qhov thiab tiv toj rau lub qhov, thiab muaj cov yam ntxwv ntawm kev tawm tsam qis thiab muaj peev xwm siab. Tungsten Hexafluoride tseem siv tshuaj etching, ntshav etching thiab lwm yam txheej txheem.
Dab tsi yog qhov densest tsis muaj tshuaj lom?
Qhov densest tsis muaj tshuaj lom roj yog Argon (AR) nrog lub ntom ntom ntawm 1.7845 g / l. Argon yog cov roj nyob hauv plab, tsis muaj xim thiab tsw ntxhiab, thiab tsis yooj yim hnov nrog lwm cov tshuaj. Argon roj yog tsuas yog siv nyob rau hauv cov kev tiv thaiv roj, hlau vuam, hlau txiav, laser thiab lwm daim teb.
Puas yog tungsten muaj zog dua titanium?
Tungsten thiab titanium yog ob qho tib neeg cov ntsiab lus nrog cov ntsiab lus zoo thiab lub zog. Lub ntsiab lus melting ntawm tungsten yog 3422 ° C thiab lub zog yog 500 mpa, thaum lub zog melting ntawm titanium yog 1668 ° C thiab lub zog yog 434 MPA. Yog li ntawd, tungsten muaj zog dua titanium.
Yuav ua li cas lom neeg yog tungsten hexafluoride?
Tungsten hexafluoride Yog cov pa roj lom heev uas tuaj yeem ua rau muaj kev puas tsuaj loj rau tib neeg lub cev yog nqus tau. Lub LD50 ntawm tungsten hexafluoride yog 5.6 mg, uas yog, nqus tau ntawm lub cev nyhav ib phaus yuav ua rau 50% tus nqi tuag. Tungsten Hexafluoride tuaj yeem ua rau ua pa tawm, ua rau cov tsos mob xws li hnoos, hauv siab nruj, thiab dyspnea. Cov mob hnyav tuaj yeem ua rau cov ntsws tswj edema, ua pa kom ua pa thiab kev tuag.
Puas yog tungsten xeb?
Tungsten yuav tsis xeb. Tungsten yog cov hlau txuas ntxiv uas tsis yog qhov tsis yooj yim nrog cov pa oxygen. Yog li ntawd, tungsten yuav tsis xeb ntawm qhov kub thiab txias.
Acid Corrode Tungsten?
Acids tuaj yeem corrode tungsten, tab sis ntawm tus nqi qeeb qeeb. Muaj zog acids xws li muaj cov sulfuric acid thiab concentrated hydrochloric acid tuaj yeem corrode tungsten, tab sis nws siv sijhawm ntev. Cov kua qaub tsis muaj zog xws li dilute sulphuric acid thiab dilute hydrolic acid muaj lub zog corrosion tsis muaj zog rau tungsten.
