Lithium hydride CAS 7580-67-8 99% chiyero ngati chochepetsera
Mafotokozedwe Akatundu
Lithium hydride ndi ufa wolimba kapena woyera womwe umakhala woyera pang'ono mpaka imvi, wowala, wopanda fungo, womwe umakhala wakuda msanga ukakumana ndi kuwala. Kulemera kwa molekyulu = 7.95; Mphamvu yokoka (H2O:1)=0.78; Malo otentha = 850℃ (amawola pansi pa BP); Malo ozizira/osungunuka = 689℃; Kutentha kwa Autoignition = 200℃. Kuzindikira Zoopsa (kutengera NFPA-704 M Rating System): Health 3, Flammability 4, Reactivity 2. Cholimba choyaka chomwe chingapange mitambo ya fumbi yomwe ingaphulike ikakhudzana ndi lawi, kutentha, kapena oxidizers.
Katundu wa Zogulitsa
Lithium hydride (LiH) ndi mchere wa kristalo (wokhala ndi nkhope yozungulira) womwe ndi woyera mu mawonekedwe ake oyera. Monga chinthu chaukadaulo, uli ndi mawonekedwe ofunikira muukadaulo wambiri. Mwachitsanzo, kuchuluka kwa haidrojeni ndi kulemera kochepa kwa LiH kumapangitsa kuti ikhale yothandiza pa zishango za neutron ndi zowongolera m'mafakitale amagetsi a nyukiliya. Kuphatikiza apo, kutentha kwakukulu kwa fusion pamodzi ndi kulemera kopepuka kumapangitsa LiH kukhala yoyenera kusungira kutentha kwa mafakitale amagetsi a dzuwa pa ma satellite ndipo ingagwiritsidwe ntchito ngati chotenthetsera kutentha pazinthu zosiyanasiyana. Nthawi zambiri, njira zopangira LiH zimaphatikizapo kusamalira LiH pamalo otentha kuposa momwe imasungunuka (688 DC). Chitsulo chosapanga dzimbiri cha mtundu wa 304L chimagwiritsidwa ntchito pazinthu zambiri zogwirira ntchito zogwirira LiH yosungunuka.
Lithium hydride ndi ionic hydride yodziwika bwino yokhala ndi lithiamu cations ndi hydride anions. Kusungunuka kwa electrolysis ya zinthu zosungunuka kumapangitsa kuti chitsulo cha lithiamu chipangidwe pa cathode ndi hydrogen pa anode. Lithium hydride-water reaction, yomwe imapangitsa kuti mpweya wa hydrogen utuluke, imasonyezanso kuti hydrogen ili ndi negative charge.
Lithium hydride ndi ufa wolimba kapena woyera womwe umakhala woyera pang'ono, wowala, wopanda fungo, womwe umakhala wakuda msanga ukakumana ndi kuwala. Lithium hydride yoyera imapanga makhiristo opanda mtundu, a cubic. Chogulitsachi chimakhala ndi zotsalira za zonyansa, mwachitsanzo, chitsulo cha lithiamu chosakhudzidwa, ndipo chifukwa chake chimakhala chakuda kapena chabuluu. Lithium hydride ndi yokhazikika kwambiri pa kutentha, kukhala hydride yokhayo ya ionic yomwe imasungunuka popanda kuwonongeka pa kuthamanga kwa mpweya (mp 688 ℃). Mosiyana ndi ma hydride ena a alkali metal, lithium hydride imasungunuka pang'ono mu zosungunulira za polar monga ethers. Imapanga zosakaniza za eutectic ndi mchere wambiri. Lithium hydride ndi yokhazikika mumlengalenga wouma koma imayaka kutentha kwambiri. Mumlengalenga wonyowa imasungunuka ndi hydrolyzed exothermically; zinthu zogawanika bwino zimatha kuyaka zokha. Pa kutentha kwakukulu, imachita ndi mpweya kuti ipange lithium oxide, ndi nayitrogeni kuti ipange lithium nitride ndi hydrogen, komanso ndi carbon dioxide kuti ipange lithium formate.
Kugwiritsa ntchito
Lithium hydride imagwiritsidwa ntchito popanga lithiamu aluminiyamu hydride ndi silane, ngati chochepetsera champhamvu, ngati chowonjezera kukhuthala mu kapangidwe ka organic, ngati gwero lonyamulika la haidrojeni, komanso ngati chinthu chopepuka choteteza nyukiliya. Tsopano ikugwiritsidwa ntchito kusungira mphamvu ya kutentha kwa makina amagetsi amlengalenga.
Lithium hydride ndi kristalo woyera ngati buluu womwe umayaka mosavuta mukakhala ndi chinyezi. Umagwiritsidwa ntchito ngati gwero la mpweya wa haidrojeni womwe umatuluka LiH ikanyowa. LiH ndi desiccant yabwino kwambiri komanso chochepetsera kutentha komanso chishango chomwe chimateteza ku kuwala komwe kumachitika chifukwa cha zochita za nyukiliya.
Kulongedza ndi Kusunga
Kulongedza: 100g/chitini; 500g/chitini; 1kg pa chitini; 20kg pa chitini chilichonse
Kusungira: Ikhoza kusungidwa m'zitini zachitsulo zokhala ndi chivundikiro chakunja kuti chitetezedwe, kapena m'madiramu achitsulo kuti isawonongeke ndi makina. Sungani pamalo ena, ozizira, ouma komanso opatsa mpweya wabwino, ndipo pewani chinyezi kwambiri. Nyumba ziyenera kukhala ndi mpweya wabwino komanso zopanda mpweya wambiri.
Zambiri zokhudza mayendedwe
Nambala ya UN: 1414
Gulu la Hazard: 4.3
Gulu Lolongedza: I
HS CODE: 28500090
Kufotokozera
| Dzina | Lithiamu hydride | ||
| CAS | 7580-67-8 | ||
| Zinthu | Muyezo | Zotsatira | |
| Maonekedwe | Ufa woyera wa kristalo | Kutsatira | |
| Kuyesa, % | ≥99 | 99.1 | |
| Mapeto | Woyenerera | ||
