Barium hlau

Barium hlau
Qia, hlau

 
Cov Qauv Txheej Txheem:Ba
【Molecular Qhov hnyav】137.33
[Lub cev nqaij daim tawv thiab tshuaj lom neeg] daj nyiaj dawb cov hlau mos. Tus txheeb ze ceev ceev 3.62, melting point 725 ℃, boiling taw tes 1640 ℃. Lub cev nruab nrab cubic: α = 0.5025nm. Melting tshav kub 7.66KJ / MOL, Vaporization Kub 149.20pa (1050 resist), 1.3kpa (1013Us ω), 1.3kPA (1019 ω) BA2 + muaj lub vojvoog ntawm 0.143nm thiab lub thermal conductivity ntawm 18.4 (25 ℃) w / (min k). Linear expansion coefficient 1.85 × 10-5 m/(M ·℃). Nyob rau ntawm chav tsev kub, nws yooj yim reacts nrog dej kom tso hydrogen roj, uas yog soluble me ntsis hauv dej cawv thiab insoluble hauv benzene.
[Zoo Txheej Txheem]Cov Qauv Siv
【Thov】Dav siv nyob rau hauv Degassing alloys, suav nrog cov txhuas, calcium, cov roj nplaum, qaub, txhuas, txhuas, thiab nickel alloys. Siv los ua cov roj suppressant kom tshem tawm cov roj av uas seem hauv wireless lub tshuab nqus tsev, thiab tseem siv rau hauv cov ntsev tsis muaj roj av.
Txhuas Thermal Txo Txoj Kev: Barium nitrate yog dénived los tsim barium oxide. Cov hmoov nplej nplua txhuas yog siv los ua tus neeg sawv cev txo, thiab cov piv ntawm cov khoom xyaw yog 3bao: 2A1. Barium oxide thiab Aluminium yog thawj ua rau pellets, uas yog tom qab ntawd muab tso rau hauv ib qho tseem thiab rhuab rau kev txiav txim siab distillation ntxuav. Lub purity ntawm lub resulting barium yog 99%.
【Kev Nyab Xeeb】Cov hmoov av yog nquag mus rau kev sib xyaw ua ke ntawm chav tsev thiab tuaj yeem ua rau kev kub ntxhov thiab tawg thaum raug cua sov, nplaim taws, lossis tshuaj lom neeg. Nws yog nquag mus rau dej decomposition thiab reacts ua txhaum nrog cov kua qaub, tso cov roj tso pa tawm uas tuaj yeem raug hluav taws xob. Ntsib fluorine, chlorine, thiab lwm yam tshuaj yuav ua rau cov tshuaj tiv thaiv kev ua phem. Barium hlau reacts nrog dej los ua barium hydroxide, uas muaj cov nyhuv corrosive. Nyob rau tib lub sijhawm, dej-soluble barium sals yog cov tshuaj lom heev. Cov yeeb tshuaj no tej zaum yuav ua rau ib puag ncig, nws raug nquahu kom cia nws nkag mus rau ib puag ncig.
Cov Kev Nyab Xeeb Txoj Cai: Cov tshuaj tua hluav taws hauv kev sib cuag nrog ya raws. 4.3 Chav Kawm 43009. Un. 1400. IMDG code 4332 nplooj, Chav 4.3.
Thaum noj nws los ntawm kev ua yuam kev, haus dej sov kom ntau, ntxuav lub plab, ntxuav lub plab nrog rau 2% mus rau 5% Surrium sulfate daws, thiab nrhiav kev kho mob. Nqus plua plav tuaj yeem ua rau muaj kev lom. Cov neeg mob yuav tsum tau tawm ntawm thaj chaw tsis huv, so, thiab khaws cia sov; Yog tias ua pa nres, ua kev ua pa tam sim ntawd thiab nrhiav kev kho mob. Yuam kev txhaws rau hauv lub qhov muag, yaug nrog dej ntau, nrhiav kev kho mob hauv cov mob hnyav. Cov tawv nqaij hu: yaug nrog dej ua ntej, tom qab ntawd ntxuav nrog xab npum. Yog tias muaj kev kub hnyiab, nrhiav kev kho mob. Tam sim ntawd yaug koj lub qhov ncauj yog noj los ntawm yuam kev thiab nrhiav kom sai nrhiav kev kho mob.
Thaum kov barium, nws yog ib qho tsim nyog los ntxiv dag zog rau kev tiv thaiv kev nyab xeeb kev ntsuas ntawm cov ua haujlwm. Tag nrho cov khib nyiab yuav tsum tau kho nrog ferrous sulfate lossis sodium sulfate los hloov cov ntsev lom rau hauv cov solubility barium solium sulfate.
Cov neeg ua haujlwm yuav tsum hnav cov ntsej muag plua plav plua plav, tshuaj tiv thaiv kev nyab xeeb, thiab hnab looj tes siv roj hmab. Khaws kom deb ntawm cov chaw hluav taws thiab kub, thiab kev haus luam yeeb yog nruj me ntsis txwv nyob hauv chaw ua haujlwm. Siv tawg-muab pov thawj kev pa tawm tshuab thiab khoom siv. Zam kev sib cuag nrog oxidants, acids, thiab cov hauv paus, tshwj xeeb nrog cov dej.
Khaws cia rau hauv kerosene thiab ua kua parsaffin, ntim rau hauv cov iav fwj nrog airtight sealecting, nrog lub zog tso tawm ntawm 1kg ib lub raj mis, thiab tom qab ntawd lub thawv ntoo, thiab tom qab ntawd lub thawv ntoo, thiab tom qab ntawd lub thawv ntoo, thiab tom qab ntawd lub thawv ntoo, thiab tom qab ntawd lub thawv ntoo, thiab tom qab ntawd lub thawv ntoo Yuav tsum muaj cov khoom siv meej "nyob rau hauv kev sib cuag nrog noo noo" daim ntawv lo rau ntawm lub ntim, nrog daim ntawv lo ntawm "lom".
Khaws rau hauv qhov chaw txias, qhuav, thiab ventilated tsis muaj chaw rau khoom. Khaws deb ntawm cov chaw kub thiab hluav taws kub, tiv thaiv noo, thiab tiv thaiv cov thawv puas tsuaj. Tsis txhob nkag rau hauv dej, kua qaub, lossis oxidants. Sib cais los ntawm cov organic teeb meem, combustibles, thiab yooj yim oxidizable tshuaj rau kev cia khoom thiab tsheb thauj mus los, thiab tsis tuaj yeem thauj cov hnub los nag.
Thaum muaj hluav taws, qhuav xuab zeb, hmoov qhuav qhuav lossis ua npuas dej, carbon dinguishon extinguishing tus neeg sawv cev (xws li 1211 extinguishing tus neeg sawv cev) tsis pub.