Barium yog lub ntiaj teb alkaline hlau, lub thib rau lub caij nyoog ntawm pab pawg IIA nyob rau hauv lub sij hawm lub sij hawm, thiab lub active caij nyob rau hauv lub alkaline ntiaj teb hlau.
1, Cov ntsiab lus faib
Barium, zoo li lwm yam alkaline ntiaj teb hlau, yog faib nyob rau hauv txhua qhov chaw ntawm lub ntiaj teb: cov ntsiab lus nyob rau hauv lub Upper crust yog 0.026%, thaum lub nruab nrab tus nqi nyob rau hauv lub crust yog 0.022%. Barium feem ntau muaj nyob rau hauv daim ntawv ntawm barite, sulfate los yog carbonate.
Lub ntsiab minerals ntawm barium nyob rau hauv cov xwm yog barite (BaSO4) thiab witherite (BaCO3). Barite deposits yog dav faib, nrog loj deposits nyob rau hauv Hunan, Guangxi, Shandong thiab lwm qhov chaw nyob rau hauv Tuam Tshoj.
2 、 Daim ntawv thov teb
1. Muaj kev siv
Nws yog siv los ua barium ntsev, alloys, foob pob hluav taws, nuclear reactors, thiab lwm yam. Nws kuj yog ib qho zoo heev deoxidizer rau refining tooj liab.
Nws yog dav siv nyob rau hauv alloys, xws li txhuas, calcium, magnesium, sodium, lithium, txhuas thiab npib tsib xee.
Barium hlautuaj yeem siv los ua tus neeg saib xyuas degassing rau tshem tawm cov kab hluav taws xob hauv lub tshuab nqus tsev thiab cov duab thaij duab, thiab tus neeg saib xyuas degassing rau refining hlau.
Barium nitrate sib xyaw nrog potassium chlorate, magnesium hmoov thiab rosin tuaj yeem siv los ua cov teeb liab foob pob thiab foob pob hluav taws.
Soluble barium compounds feem ntau yog siv los ua tshuaj tua kab, xws li barium chloride, los tswj ntau hom kab tsuag.
Nws tseem tuaj yeem siv rau kev ua kom zoo brine thiab boiler dej rau electrolytic caustic soda ntau lawm.
Nws kuj yog siv los npaj cov pigments. Textile thiab tawv kev lag luam yog siv los ua mordant thiab rayon matting tus neeg saib xyuas.
2. Kev siv kho mob
Barium sulfate yog ib qho tshuaj pab rau kev kuaj X-ray. Cov hmoov dawb uas tsis muaj ntxhiab tsw thiab tsis hnov tsw, uas tuaj yeem muab qhov zoo sib xws hauv lub cev thaum kuaj X-ray. Kev kho mob barium sulfate tsis nqus rau hauv plab hnyuv thiab tsis muaj kev fab tshuaj. Nws tsis muaj cov kuab tshuaj uas muaj kuab lom xws li barium chloride, barium sulfide thiab barium carbonate. Nws yog tsuas yog siv rau gastrointestinal radiography thiab qee zaus rau lwm lub hom phiaj.
3,Txoj kev npaj
Hauv kev lag luam, kev npaj ntawm barium hlau yog muab faib ua ob kauj ruam: kev npaj ntawm barium oxide thiab cov hlau thermal txo (aluminothermic txo).
Ntawm 1000 ~ 1200 ℃, ob qhov kev cuam tshuam no tuaj yeem tsim tau me me ntawm barium. Yog li ntawd, lub tshuab nqus tsev twj tso kua mis yuav tsum tau siv mus tas li hloov barium vapor los ntawm cov tshuaj tiv thaiv cheeb tsam mus rau condensation cheeb tsam kom cov tshuaj tiv thaiv mus ntxiv mus rau txoj cai. Cov residue tom qab cov tshuaj tiv thaiv yog tshuaj lom thiab tsuas yog muab pov tseg tom qab kev kho mob.
4,Kev ntsuas kev nyab xeeb
1. Kev phom sij rau kev noj qab haus huv
Barium tsis yog ib qho tseem ceeb rau tib neeg, tab sis yog ib qho tshuaj lom. Kev noj cov tshuaj barium soluble yuav ua rau muaj tshuaj lom barium. Piv txwv tias qhov hnyav nruab nrab ntawm tus neeg laus yog 70kg, tag nrho cov barium hauv nws lub cev yog li 16mg. Tom qab noj cov ntsev barium los ntawm kev yuam kev, nws yuav yaj los ntawm dej thiab lub plab acid, uas tau ua rau muaj ntau yam xwm txheej lom thiab qee tus neeg tuag.
Cov tsos mob ntawm tus kab mob barium ntsev lom: barium ntsev lom feem ntau yog tshwm sim raws li gastrointestinal irritation thiab hypokalemia syndrome, xws li xeev siab, ntuav, mob plab, raws plab, quadriplegia, myocardial kev koom tes, ua pa nqaij tuag tes tuag taw, thiab lwm yam. Cov neeg mob no tau yooj yim misdiagnos. Cov tsos mob ntawm plab hnyuv xws li ntuav, mob plab, raws plab, thiab lwm yam, thiab tau yooj yim misdiagnosed raws li cov zaub mov lom nyob rau hauv cov ntaub ntawv ntawm cov kab mob sib sau ua ke, thiab mob gastroenteritis nyob rau hauv cov ntaub ntawv ntawm ib tug kab mob.
2. Kev tiv thaiv kev phom sij
Kev kho mob xwm txheej ceev
Cais thaj chaw muaj kab mob thiab txwv kev nkag mus. Txiav tawm qhov hluav taws kub. Nws raug pom zoo tias cov neeg ua haujlwm kho mob thaum muaj xwm txheej ceev hnav tus kheej-priming lim plua plav daim npog qhov ncauj thiab cov khaub ncaws tiv thaiv hluav taws. Tsis txhob tiv tauj cov xau ncaj qha. Cov dej xau me me: tsis txhob nce cov plua plav thiab sau rau hauv lub thawv qhuav, huv si thiab npog nrog lub duav huv. Hloov rov siv dua. Cov dej xau ntau: npog nrog ntaub yas thiab canvas kom txo tau ya. Siv cov cuab yeej tsis muaj teeb meem los hloov thiab rov ua dua tshiab.
3. Kev tiv thaiv
Kev tiv thaiv kab mob ua pa: Feem ntau, tsis tas yuav tsum muaj kev tiv thaiv tshwj xeeb, tab sis nws raug nquahu kom hnav lub ntsej muag lub ntsej muag lub ntsej muag plua plav hauv qhov xwm txheej tshwj xeeb.
Kev tiv thaiv qhov muag: hnav tshuaj tiv thaiv tsom iav.
Kev tiv thaiv lub cev: hnav khaub ncaws tiv thaiv tshuaj.
Kev tiv thaiv tes: hnav hnab looj tes roj hmab.
Lwm tus: txwv tsis pub haus luam yeeb ntawm qhov chaw ua haujlwm. Ua tib zoo saib xyuas tus kheej.
5、 Kev khaws cia thiab kev thauj mus los
Khaws nyob rau hauv ib lub warehouse txias thiab ventilated. Khaws kom deb ntawm qhov hluav taws kub thiab qhov chaw kub. Tus txheeb ze humidity yog khaws cia qis dua 75%. Lub pob yuav tsum raug kaw thiab yuav tsum tsis txhob sib cuag nrog huab cua. Nws yuav tsum tau muab cais los ntawm oxidants, acids, alkalis, thiab lwm yam, thiab yuav tsum tsis txhob tov. Cov khoom tawg-pov thawj teeb pom kev zoo thiab qhov cua tshuab yuav tsum tau txais. Nws yog txwv tsis pub siv cov cuab yeej siv tshuab thiab cov cuab yeej uas yooj yim los tsim cov txim taws. Lub chaw cia khoom yuav tsum tau nruab nrog cov ntaub ntawv tsim nyog kom muaj cov dej xau.
Post lub sij hawm: Mar-13-2023