Lithium hydroxide (LiOH, CAS 1310-65-2) yog ib qho inorganic compound tau los ntawm reacting lithium carbonate nrog calcium hydroxide. Nws yog ib lub hauv paus muaj zog uas zoo li cov dawb crystalline khoom thiab yog tsim nyob rau hauv anhydrous thiab monohydrate cov ntaub ntawv. Lithium hydroxide yog qhov zoo tshaj plaws lub npe hu ua tus precursor rau lithium hydroxide siv nyob rau hauv roj teeb cathode cov ntaub ntawv thiab raws li raw khoom rau lithium stearate greases, tab sis nws kuj pab nyob rau hauv cov pa roj carbon dioxide nqus, ceramics, thiab pH tswj. Kab lus no suav nrog nws tus kheej, cov khoom siv lub cev, cov ntawv thov tseem ceeb, thiab kev txiav txim siab tuav.
Lithium Hydroxide yog dab tsi?
Lithium hydroxide yog hydroxide ntsev ntawm lithium, nrog rau cov mis LiOH. Industrially, nws yog tsim los ntawm metathesis ntawm lithium carbonate nrog calcium hydroxide, los yog electrolysis ntawm lithium chloride daws. Cov khoom lag luam feem ntau yog monohydrate LiOH-H2O, uas tuaj yeem ua rau lub cev tsis muaj dej. Vim hais tias lithium hydroxide yog lub hauv paus muaj zog, nws reacts nrog cov kua qaub, acidic gases, thiab fatty acids, uas yog lub hauv paus rau ntau yam ntawm nws cov kev lag luam siv. Nws yog muab rau hauv cov qib xws li cov khoom siv rau roj ntau lawm rau roj teeb - cov khoom siv qib nrog nruj tswj tsis pub dhau kev txwv.
Physical thiab Chemical Properties
| Khoom | Tus nqi |
|---|---|
| CAS nr | 1310-65-2 |
| Tshuaj formula | LiOH |
| Molecular hnyav | 23.95 g / mol |
| Qhov ntom | Txog 1.46 g / cm3 |
| Melting point | Txog 462 degree |
| Boiling point | Txog 924 degree |
| Solubility | Soluble hauv dej, me ntsis soluble hauv ethanol |
| Qhov tshwm sim | Dawb crystalline khoom |
Kev siv loj ntawm Lithium hydroxide
Cov ntaub ntawv roj teeb: ib qho tseem ceeb ua ntej rau nickel- cov khoom siv cathode nplua nuj xws li NMC thiab NCA siv hauv lithium- ion roj teeb.
Lubricating greases: reacts nrog stearic thiab lwm yam fatty acids los tsim lithium soaps, lub hauv paus ntawm siab -kev ua tau zoo ntau- lub hom phiaj roj.
Cov pa roj carbon dioxide txhuam: absorbs CO2 nyob rau hauv qhov chaw kaw xws li lub dav hlau, submarines, thiab lub tshuab ua pa.
Ceramics thiab iav: txo qis melting kub thiab txhim kho cov khoom hauv tshwj xeeb ceramic thiab iav formulations.
pH tswj thiab kev kho dej: neutralizes acids thiab kho alkalinity hauv cov txheej txheem ntws.
Chemical synthesis: ib qhov chaw ntawm lithium ions rau zus tau tej cov lithium ntsev thiab organic lithium tebchaw.
Lithium Hydroxide Monohydrate vs Anhydrous
Daim ntawv monohydrate, LiOH-H2O, yog qib kev lag luam tshaj plaws thiab yooj yim rau kev ua haujlwm vim nws tsis muaj plua plav thiab ruaj khov dua hauv kev cia. Daim ntawv anhydrous, LiOH, muaj lithium cov ntsiab lus siab dua rau ib chav tsev loj thiab nyiam qhov twg cov dej qhia yuav tsum tau txo qis, xws li hauv qee lub roj teeb thiab cov txheej txheem tshuaj tshwj xeeb. Cov ntawv qhia tshwj xeeb hais txog qhov kev ntsuam xyuas, dej cov ntsiab lus, thiab cov khoom tsis huv rau txhua qib, thiab cov neeg yuav khoom yuav tsum sib phim cov qib rau daim ntawv thov uas yuav tsum tau ua ntau dua li kev kho ob hom kev sib hloov.
Kev nyab xeeb thiab kev txiav txim siab
Lithium hydroxide yog corrosive. Nws tuaj yeem ua rau tawv nqaij kub hnyiab, qhov muag puas, thiab ua pa ua pa yog tias nqus tau plua plav lossis pos huab, yog li hnav hnab looj tes tiv thaiv, tsom iav, thiab tiv thaiv ua pa thaum tuav hmoov. Ua haujlwm nyob rau hauv qhov chaw cua thiab tsis txhob tsim cov plua plav. Lithium hydroxide absorbs noo noo thiab carbon dioxide los ntawm huab cua, yog li khaws cia rau hauv cov thawv kaw nruj nreem rau hauv qhov chaw qhuav, kom deb ntawm cov kua qaub thiab dej - cov ntaub ntawv reactive. Nyob rau hauv rooj plaub ntawm daim tawv nqaij los yog qhov muag, yaug kom huv si nrog dej thiab nrhiav kev kho mob. Xa mus rau daim ntawv qhia kev nyab xeeb rau qib tshwj xeeb ua ntej siv.
Cov lus nug nquag
CAS tus lej rau lithium hydroxide yog dab tsi?
CAS tus naj npawb rau anhydrous lithium hydroxide yog 1310-65-2. Daim ntawv monohydrate, LiOH-H2O, muaj nws tus lej CAS thiab yuav tsum raug txheeb xyuas nyias thaum xaj.
Puas yog lithium hydroxide zoo ib yam li lithium carbonate?
Tsis yog. Lithium hydroxide (LiOH) yog lub hauv paus muaj zog, thaum lithium carbonate (Li2CO3) yog ntsev ntawm carbonic acid. Lawv yog cov sib txuas sib txawv nrog cov khoom sib txawv, thiab lithium hydroxide feem ntau yog tsim los ntawm lithium carbonate.
Dab tsi yog lithium hydroxide siv rau hauv cov roj teeb?
Lithium hydroxide yog siv los tsim cov khoom siv high -nickel cathode xws li NMC thiab NCA, uas txhim kho lub zog ceev thiab kev ua tau zoo ntawm lithium- ion roj teeb rau lub tsheb hluav taws xob thiab lub zog cia.
Puas yog lithium hydroxide txaus ntshai?
Lithium hydroxide yog corrosive thiab tuaj yeem hlawv tawv nqaij, qhov muag, thiab cov ntaub so ntswg ua pa. Nrog rau cov txheej txheem PPE, qhov cua, thiab kev tuav, nws tuaj yeem siv tau zoo hauv cov txheej txheem kev lag luam.
Dab tsi yog qhov txawv ntawm LiOH thiab LiOH-H2O?
LiOH yog anhydrous lithium hydroxide, thaum LiOH-H2O yog cov monohydrate uas muaj ib qho dej ntawm crystallization. Cov monohydrate yog daim ntawv ua lag luam ntau dua thiab yooj yim rau kev ua lag luam.
Lithium hydroxide ua li cas?
Lithium hydroxide feem ntau yog tsim los ntawm reacting lithium carbonate nrog calcium hydroxide, los yog electrolysis ntawm lithium chloride daws. Cov khoom yog crystallized, purified, thiab qhuav mus rau qib yuav tsum tau.
