Taw qhia
Cov ntsiab lus ntawmbariumnyob rau hauv lub ntiaj teb crust yog 0.05%. Feem ntau cov ntxhia hauv cov xwm txheej yog barite (barium sulfate) thiab witherite (barium carbonate). Barium yog dav siv hauv electronics, ceramics, tshuaj, roj av thiab lwm yam kev lag luam.
Breif qhia txog Barium hlau granules
| Khoom npe | Barium hlau granules |
| Cas | 7440-39-3 : kuv |
| Purity | 0.999 ib |
| Formula | Ba |
| Loj | 20-50mm,-20mm (hauv qab cov roj ntxhia) |
| Melting point | 725 ° C (lit.) |
| Boiling point | 1640 ° C (lit.) |
| Qhov ntom | 3.6 g / mL ntawm 25 ° C (lit.) |
| Cia temp | thaj chaw tsis muaj dej |
| Daim ntawv | rod pieces, chunks, granules |
| Specific Gravity | 3.51 ib |
| Xim | Nyiaj-grey |
| Kev tiv thaiv | 50.0 μΩ-cm, 20 ° C |
1.Electronics Kev Lag Luam
Ib qho tseem ceeb ntawm kev siv barium yog raws li ib tug getter kom tshem tawm cov kab gases los ntawm lub tshuab nqus tsev raj thiab cov duab raj. Nws yog siv nyob rau hauv lub xeev ntawm evaporative getter zaj duab xis, thiab nws txoj haujlwm yog los tsim cov tshuaj lom neeg nrog cov pa ib puag ncig hauv lub cuab yeej los tiv thaiv cov oxide cathode hauv ntau lub raj hluav taws xob los ntawm kev cuam tshuam nrog cov pa phem thiab kev ua haujlwm tsis zoo.
Barium aluminium nickel getter yog ib qho evaporative getter, uas yog dav siv nyob rau hauv ntau lub hwj chim kis tau tus mob, oscillator hlab, lub koob yees duab raj, daim duab tubes, hnub ci collector raj thiab lwm yam khoom siv. Qee cov duab raj siv nitrided barium aluminium getters, uas tso tawm ntau cov nitrogen hauv cov tshuaj tiv thaiv evaporative exothermic. Thaum ib tug loj npaum li cas ntawm barium evaporates, vim muaj kev sib tsoo nrog nitrogen molecules, lub getter barium zaj duab xis tsis ua raws li lub screen los yog duab ntxoov ntxoo daim npog qhov ncauj tab sis sib sau ua ke nyob ib ncig ntawm lub raj caj dab, uas tsis tau tsuas yog muaj zoo getter kev ua tau zoo, tab sis kuj txhim kho lub brightness ntawm. qhov screen.
2.Kev lag luam ceramic
Barium carbonate tuaj yeem siv los ua cov lauj kaub tais diav. Thaum barium carbonate muaj nyob rau hauv glaze, nws yuav tsim liab thiab ntshav.
Barium titanate yog lub hauv paus matrix raw khoom ntawm titanate series hluav taws xob ceramics thiab yog lub npe hu ua tus ncej ntawm kev lag luam hluav taws xob ceramics. Barium titanate muaj siab dielectric tas li, tsis tshua muaj dielectric poob, zoo heev ferroelectric, piezoelectric, siab tsis kam thiab rwb thaiv tsev zog, thiab yog dav siv nyob rau hauv ceramic rhiab Cheebtsam, tshwj xeeb tshaj yog zoo kub coefficient thermistors (PTC), multilayer ceramic capacitors (MLCCS), thermoelectric ntsiab, piezoelectric ceramics, sonar, infrared radiation detection ntsiab, siv lead ua ceramic capacitors, electro-optical zaub panels, nco cov ntaub ntawv, polymer-based composite cov ntaub ntawv thiab txheej.
3.Fireworks kev lag luam
Barium ntsev (xws li barium nitrate) hlawv nrog cov xim ntsuab-daj thiab feem ntau yog siv los ua cov foob pob hluav taws thiab flares. Cov foob pob hluav taws dawb peb pom qee zaum ua nrog barium oxide.
4.Oil Extraction
Baryte hmoov, tseem hu ua natural barium sulfate, feem ntau yog siv los ua tus neeg sawv cev hnyav rau cov roj thiab roj av drilling av nkos. Ntxiv cov hmoov barite rau cov av nkos tuaj yeem ua rau cov av nkos tshwj xeeb, sib npaug ntawm qhov hnyav ntawm cov av nkos nrog cov roj av hauv av thiab cov roj siab, thiab yog li tiv thaiv kev sib tsoo.
5. Kev tswj kab tsuag
Barium carbonate yog hmoov dawb uas yog insoluble hauv dej tab sis soluble hauv acid. Nws yog tshuaj lom thiab feem ntau siv los ua tshuaj lom nas. Barium carbonate tuaj yeem hnov mob nrog hydrochloric acid hauv cov kua txiv hmab txiv ntoo kom tso tawm cov tshuaj lom barium ions, ua rau muaj tshuaj lom. Yog li ntawd, peb yuav tsum tsis txhob muaj kev tsis sib haum xeeb hauv lub neej niaj hnub.
6. Kev kho mob kev lag luam
Barium sulfate yog cov hmoov dawb uas tsis muaj ntxhiab thiab tsis qab qab uas tsis yog soluble hauv dej lossis hauv cov kua qaub lossis alkali, yog li nws tsis tsim cov tshuaj lom barium ions. Nws feem ntau yog siv los ua cov tshuaj pab rau kev kuaj X-ray rau kev kuaj mob plab, feem ntau hu ua "barium noj imaging".
Kev kuaj hluav taws xob siv barium sulfate feem ntau vim tias nws tuaj yeem nqus X-rays hauv plab hnyuv kom nws loj hlob. Nws tsis muaj cov tshuaj pharmacological nws tus kheej thiab yuav cia li tawm ntawm lub cev tom qab noj.
Cov kev siv no qhia tau hais tias versatility ntawmbarium hlauthiab nws qhov tseem ceeb hauv kev lag luam, tshwj xeeb tshaj yog nyob rau hauv electronics thiab chemical industries. Qhov tshwj xeeb lub cev thiab tshuaj lom neeg ntawm barium hlau ua rau nws ua lub luag haujlwm tseem ceeb hauv ntau qhov kev lag luam.
Post lub sij hawm: Jan-06-2025