Bariumyog hlau hnyav. Cov hlau hnyav xa mus rau cov hlau uas muaj lub ntiajteb txawj nqus ntau dua 4 txog 5, thiab lub ntiajteb txawj nqus ntawm barium yog li 7 lossis 8, yog li barium yog cov hlau hnyav. Barium tebchaw yog siv los ua cov xim ntsuab hauv cov foob pob hluav taws, thiab hlau barium tuaj yeem siv los ua tus neeg sawv cev degassing kom tshem tawm cov kab hluav taws xob hauv lub tshuab nqus tsev thiab cov kab hluav taws xob cathode, thiab ua tus neeg sawv cev degassing rau refining hlau.
1 Puas yog barium yog hlau hnyav?Barium yog hlau hnyav. Yog vim li cas: Cov hlau hnyav yog hais txog cov hlau uas muaj lub ntiajteb txawj nqus ntau dua 4 txog 5, thiab lub ntiajteb txawj nqus ntawm barium yog li 7 lossis 8, yog li barium yog cov hlau hnyav. Taw qhia rau barium: Barium yog ib qho tseem ceeb hauv alkaline ntiaj teb hlau. Nws yog ib tug mos alkaline ntiaj teb hlau nrog ib tug silvery dawb luster. Cov khoom siv tshuaj muaj zog heev, thiab barium tsis tau pom nyob rau hauv qhov xwm txheej. Cov minerals ntau tshaj plaws ntawm barium nyob rau hauv cov xwm yog barium sulfate thiab barium carbonate, ob qho tib si uas yog insoluble nyob rau hauv dej. Kev siv barium: Barium compounds yog siv los ua ntsuab hauv cov foob pob hluav taws, thiabbarium hlauNws tuaj yeem siv los ua tus neeg saib xyuas degassing kom tshem tawm cov kab hluav taws xob hauv lub tshuab nqus tsev thiab cov kab hluav taws xob cathode, thiab tus neeg saib xyuas degassing rau kev ua kom zoo hlau.
2 Dab tsi yog siv barium? Bariumyog cov khoom siv tshuaj nrog lub cim tshuaj Ba. Barium muaj ntau yam kev siv, thiab cov hauv qab no yog qee qhov kev siv:
1. Barium compounds yog siv los ua raw khoom thiab additives hauv kev lag luam. Piv txwv li, barium compounds tuaj yeem siv los ua teeb pom kev zoo phosphors, nplaim hluav taws xob, cov khoom siv ntxiv thiab cov catalysts.
2. Barium tuaj yeem siv los ua X-ray raj, uas yog siv dav hauv kev kho mob thiab kev lag luam. X-ray raj yog ib qho khoom siv uas tsim cov X-rays rau kev kuaj mob thiab kev kuaj xyuas.
3. Barium-lead iav yog cov khoom siv kho qhov muag iav uas feem ntau siv los ua cov cuab yeej kho qhov muag, tsom iav, thiab cov tsom iav tsom iav, thiab lwm yam.
4. Barium yog siv los ua cov khoom siv ntxiv thiab cov khoom siv alloy hauv kev tsim roj teeb. Nws tuaj yeem txhim kho roj teeb kev ua haujlwm thiab khaws cia lub zog.
5. Barium compounds kuj tseem siv los ua cov khoom xws li tshuaj tua kab, ceramics, thiab cov ntaub nplaum sib nqus.
6. Barium compounds kuj tseem siv tau los tswj cov kab tsuag thiab cov nroj tsuag hauv cov nyom thiab orchards.Thov nco ntsoov tias barium yog ib qho tshuaj lom, yog li koj yuav tsum tau ceev faj thaum siv thiab tuav cov tshuaj barium, thiab ua raws li kev ntsuas kev nyab xeeb thiab kev coj ua zoo.
3 Barium ion precipitate nrog dab tsi?Barium ions precipitate nrog carbonate ions, sulfate ions, thiab sulfite ions. Barium yog ib qho alkaline ntiaj teb hlau hlau, ib lub caij nyob rau hauv lub thib rau lub sij hawm ntawm pab pawg neeg IIA nyob rau hauv lub periodic rooj, ib tug active caij ntawm alkaline ntiaj teb hlau, thiab ib tug mos alkaline ntiaj teb hlau nrog ib tug silvery-dawb luster.Vim hais tias barium yog tshuaj lom neeg heev, barium yeej tsis tau pom nyob rau hauv qhov xwm txheej. Cov minerals ntau tshaj plaws ntawm barium nyob rau hauv cov xwm yog barite (barium sulfate) thiab witherite (barium carbonate), ob qho tib si uas yog insoluble nyob rau hauv dej. Barium tau lees paub tias yog lub ntsiab lus tshiab hauv xyoo 1774, tab sis nws tsis raug cais raws li cov khoom siv hlau kom txog thaum tsis ntev tom qab kev tsim hluav taws xob hauv xyoo 1808. 4 Cov khoom ntawm barium Barium yog cov khoom siv hlau, silvery dawb, thiab emits daj-ntsuab nplaim thaum kub. Barium ntsev yog siv los ua cov xim dawb qib siab. Hlau barium yog ib qho zoo heev deoxidizer thaum lub sij hawm tooj liab refining: noj mov (ib txoj hauv kev kuaj xyuas qee yam kab mob ntawm txoj hlab pas thiab plab hnyuv. Tom qab tus neeg mob siv barium sulfate, X-ray fluoroscopy los yog filming). Qhov ceev 3.51 g / cm3. Melting point 725 ℃. Kub taw tes 1640 ℃. Valence +2. Ionization zog 5.212 electron volts. Cov khoom siv tshuaj muaj zog heev thiab tuaj yeem hnov mob nrog feem ntau tsis yog hlau. Hlawv ntawm qhov kub thiab txias hauv cov pa yuav tsim barium peroxide. Nws yooj yim oxidized thiab tuaj yeem hnov mob nrog dej los tsim hydroxide thiab hydrogen. Nws dissolves nyob rau hauv acid los ua ntsev. Barium ntsev yog tshuaj lom tsuas yog barium sulfate. Kev txiav txim hlau ua haujlwm yog nruab nrab ntawm potassium thiab sodium.
Post lub sij hawm: Nov-04-2024