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Zamatsenga Zosowa Padziko Lapansi: Lutetium
Lutetium ndi chinthu chosowa padziko lapansi chomwe chili ndi mitengo yokwera, nkhokwe zochepa, komanso ntchito zochepa. Ndiwofewa komanso wosungunuka mu ma asidi osungunuka, ndipo amatha kuchitapo kanthu pang'onopang'ono ndi madzi. Ma isotopu omwe amapezeka mwachilengedwe akuphatikizapo 175Lu ndi theka la moyo wa 2.1 × 10 ^ Zaka 10 zakubadwa β Emitter 176Lu. Amapangidwa ndi kuchepetsa Lu ...Werengani zambiri -
Zamatsenga Zosowa Padziko Lapansi - Praseodymium
Praseodymium ndi chinthu chachitatu chochuluka kwambiri cha lanthanide pa tebulo la periodic la zinthu za mankhwala, ndi kuchuluka kwa 9.5 ppm mu kutumphuka, kutsika kokha kuposa cerium, yttrium, lanthanum, ndi scandium. Ndi chinthu chachisanu chomwe chili chochuluka kwambiri m'mayiko osowa. Koma monga dzina lake, praseodymium ndi ...Werengani zambiri -
Barium ku Bolognite
arium, gawo 56 la tebulo la periodic. Barium hydroxide, barium chloride, barium sulfate… ndizinthu zodziwika bwino m'mabuku aku sekondale. Mu 1602, akatswiri a alchemist akumadzulo anapeza mwala wa Bologna (wotchedwanso "mwala wa dzuwa") umene umatulutsa kuwala. Mwala wamtunduwu uli ndi lum kakang'ono ...Werengani zambiri -
Kodi Cerium oxide ndi chiyani?
Cerium oxide ndi inorganic mankhwala okhala ndi formula CeO2, kuwala chikasu kapena chikasu bulauni wothandiza ufa. Kachulukidwe 7.13g/cm3, malo osungunuka 2397°C, osasungunuka m'madzi ndi zamchere, osungunuka pang'ono mu asidi. Pa kutentha kwa 2000 ° C ndi kuthamanga kwa 15MPa, haidrojeni ingagwiritsidwe ntchito kukonzanso ...Werengani zambiri -
Kugwiritsa ntchito nano cerium oxide mu polima
Nano-ceria imathandizira kukana kukalamba kwa ultraviolet kwa polima. Mapangidwe amagetsi a 4f a nano-CeO2 amakhudzidwa kwambiri ndi kuyamwa kwa kuwala, ndipo gulu loyamwitsa limakhala makamaka m'chigawo cha ultraviolet (200-400nm), chomwe chilibe mayamwidwe owoneka bwino komanso kufalikira kwabwino. Oda...Werengani zambiri -
Kugwiritsa ntchito scandium oxide Sc2O3 ufa
Kugwiritsa ntchito scandium oxide The chemical formula of scandium oxide ndi Sc2O3. Katundu: Cholimba choyera. Ndi ma kiyubiki dongosolo la osowa lapansi sesquioxide. Kachulukidwe 3.864. Malo osungunuka 2403 ℃ 20 ℃. Insoluble m'madzi, sungunuka mu asidi otentha. Amakonzedwa ndi kuwonongeka kwa mchere wa scandium. Zitha kukhala...Werengani zambiri