Lithium hydride CAS 7580-67-8 99% purity li txo tus neeg sawv cev
Product Description
Lithium hydride yog ib qho dawb dawb mus rau greyish, translucent, tsis muaj ntxhiab tsw los yog hmoov dawb uas darkens sai heev thaum raug lub teeb. Molecular hnyav = 7.95; Specification gravity (H2O: 1) = 0.78; Boiling point = 850 ℃ (decomposes hauv qab BP); Txias / Melting point = 689 ℃; Autoignition kub = 200 ℃. Kev txheeb xyuas qhov phom sij (raws li NFPA-704 M Rating System): Kev Noj Qab Haus Huv 3, Flammability 4, Reactivity 2. Cov khoom siv hluav taws xob uas tuaj yeem tsim cov huab cua los ntawm huab cua uas tuaj yeem tawg ntawm kev sib cuag nrog nplaim taws, cua sov, lossis oxidizers.
Khoom Khoom
Lithium hydride (LiH) yog crystalline ntsev (lub ntsej muag-centered cubic) uas yog dawb nyob rau hauv nws cov ntshiab daim ntawv, Raws li ib tug engineering khoom, nws muaj cov khoom ntawm kev txaus siab nyob rau hauv ntau yam technologies. Piv txwv li, cov ntsiab lus hydrogen siab thiab lub teeb yuag ntawm LiH ua rau nws muaj txiaj ntsig zoo rau neutron shields thiab moderators hauv nuclear fais fab nroj tsuag. Tsis tas li ntawd, qhov kub siab ntawm fusion ua ke nrog lub teeb yuag ua rau LiH tsim nyog rau cov khoom siv hluav taws xob cia rau hnub ci fais fab nroj tsuag ntawm satellites thiab tej zaum yuav siv los ua lub dab dej kub rau kev siv sib txawv. Feem ntau, cov txheej txheem rau kev tsim cov LiH koom nrog kev tuav LiH ntawm qhov kub siab tshaj nws qhov meltingpoint (688 DC). Hom 304L stainless hlau yog siv rau ntau yam txheej txheem tuav molten LiH.
Lithium hydride yog ib hom ionic hydride nrog lithium cations thiab hydride anions. Electrolysis ntawm cov khoom molten ua rau tsim cov lithium hlau ntawm cathode thiab hydrogen ntawm lub anode. Cov tshuaj tiv thaiv lithium hydride-dej, uas ua rau tso tawm cov pa roj hydrogen, kuj yog qhov qhia txog qhov tsis zoo ntawm hydrogen.
Lithium hydride yog ib qho dawb dawb mus rau greyish, translucent, tsis muaj ntxhiab tsw los yog hmoov dawb uas darkens sai heev thaum raug lub teeb. Ntshiab lithium hydride cov ntaub ntawv tsis muaj xim, cubic crystals. Cov khoom lag luam muaj cov cim ntawm impurities, piv txwv li, tsis muaj kev cuam tshuam lithium hlau, thiab yog li lub teeb grey lossis xiav. Lithium hydride yog thermally ruaj khov, yog tib lub ionic hydride uas melts tsis decomposition ntawm atmospheric siab (mp 688 ℃). Hauv kev sib piv rau lwm cov alkali hlau hydrides, lithium hydride yog me ntsis soluble hauv inert polar organic solvents xws li ethers. Nws tsim eutectic sib tov nrog ntau cov ntsev. Lithium hydride ruaj khov hauv huab cua qhuav tab sis ignites ntawm qhov kub thiab txias. Hauv huab cua noo nws yog hydrolyzed exothermically; cov khoom sib cais zoo tuaj yeem ua rau kub hnyiab tau. Thaum kub siab, nws reacts nrog oxygen los tsim lithium oxide, nrog nitrogen los ua lithium nitride thiab hydrogen, thiab nrog carbon dioxide los ua lithium formate.
Daim ntawv thov
Lithium hydride yog siv nyob rau hauv kev tsim cov lithium aluminium hydride thiab silane, raws li ib tug muaj zog txo tus neeg sawv cev, raws li ib tug condensationagent nyob rau hauv cov organic synthesis, raws li ib tug portablesource ntawm hydrogen, thiab raws li ib tug hnyav nuclear shielding khoom. Tam sim no nws tau raug siv los khaws cov thermal zog rau lub tshuab hluav taws xob.
Lithium hydride yog ib qho xiav-dawb siv lead ua uas yog flammable nyob rau hauv noo noo. Siv los ua qhov chaw ntawm cov pa roj hydrogen uas tau tso tawm thaum LiH ntub dej. LiH yog ib qho zoo heev desiccant thiab txo tus neeg sawv cev nrog rau cov ntaub thaiv npog uas tiv thaiv hluav taws xob tsim los ntawm cov tshuaj tiv thaiv nuclear.
Ntim & Cia
Ntim: 100g / tin tau; 500g / tin tau; 1 kg ib tin tau; 20kg ib lub nruas hlau
Cia: Nws tuaj yeem khaws cia rau hauv cov kaus poom hlau nrog lub hau npog rau kev tiv thaiv, lossis hauv cov nruas hlau kom tiv thaiv kev puas tsuaj. Khaws nyob rau hauv ib qho chaw sib cais, txias, qhuav thiab zoo-ventilated qhov chaw, thiab nruj me ntsis txwv tsis pub ya raws. Cov vaj tse yuav tsum muaj qhov cua zoo thiab tsis muaj qhov sib xyaw ua ke ntawm cov pa roj.
Cov ntaub ntawv kev nyab xeeb kev thauj mus los
UN Nr.: 1414
HazardClass: 4.3
PackingGroup: Kuv
HS CODE: 28500090
Specification
| Lub npe | Lithium hydride | ||
| CAS | 7580-67-8 : kuv | ||
| Cov khoom | Txuj | Cov txiaj ntsig | |
| Qhov tshwm sim | Off-dawb crystalline hmoov | Ua raws | |
| Kev ntsuas,% | ≥99 | 99.1 ib | |
| Xaus | Tsim nyog | ||
Pom zoo cov khoom
Lithium hydride CAS 16853-85-3
Lithium Hydroxide Monohydrate
Lithium hydroxide ANHYDROUS
Lithium fluoride
