Barium zitsulo

Barium zitsulo
Barium, zitsulo

 
Zomangamanga:Ba
【Kulemera kwa thupi】137.33
[Zinthu Zakuthupi ndi Zamankhwala] Chitsulo chofewa chasiliva chachikasu. Kachulukidwe wachibale 3.62, kusungunuka mfundo 725 ℃, kuwira mfundo 1640 ℃. Thupi lapakati kiyubiki: α=0.5025nm. Kusungunuka kutentha 7.66kJ/mol, vaporization kutentha 149.20kJ/mol, nthunzi kuthamanga 0.00133kpa (629 ℃), 1.33kPa (1050 ℃), 101.3kPa (1640 ℃), resistivity 0.2 Ω2. Ba2 + ili ndi radius ya 0.143nm ndi matenthedwe matenthedwe a 18.4 (25 ℃) W/(m · K). Linear kufutukula koyefite 1.85 × 10-5 m/(M ·℃). Kutentha kwa chipinda, imakhudzidwa mosavuta ndi madzi kutulutsa mpweya wa haidrojeni, womwe umasungunuka pang'ono mu mowa komanso wosasungunuka mu benzene.
[Makhalidwe Abwino]Miyezo Yothandizira
【Kufunsira】Amagwiritsidwa ntchito kwambiri popanga ma alloys otulutsa, kuphatikiza lead, calcium, magnesium, sodium, lithiamu, aluminium, ndi nickel alloys. Amagwiritsidwa ntchito ngati chopondereza gasi kuchotsa mpweya wotsalira mu machubu opanda zingwe, komanso amagwiritsidwa ntchito popanga mchere wa barium.
Njira yochepetsera matenthedwe a aluminiyamu: Barium nitrate imawola kuti ipange barium oxide. Fine grained aluminiyamu amagwiritsidwa ntchito ngati kuchepetsa, ndipo chiŵerengero cha zosakaniza ndi 3BaO: 2A1. Barium oxide ndi aluminiyamu amapangidwa koyamba kukhala ma pellets, omwe kenako amaikidwa mubata ndi kutentha mpaka 1150 ℃ kuti achepetse kuyeretsa distillation. Kuyera kwa barium chifukwa chake ndi 99%.
【Chitetezo】Fumbi limakonda kuyaka mwachisawawa pa kutentha kwa firiji ndipo limatha kuyaka ndi kuphulika likakumana ndi kutentha, malawi, kapena zinthu zina. Imakonda kuwonongeka kwa madzi ndipo imachita mwamphamvu ndi zidulo, kutulutsa mpweya wa haidrojeni womwe ukhoza kuyatsidwa ndi kutentha kwa zomwe zimachitika. Kukumana ndi fluorine, chlorine, ndi zinthu zina kungayambitse chiwawa chamankhwala. Chitsulo cha Barium chimachita ndi madzi kupanga barium hydroxide, yomwe imakhala ndi mphamvu yowononga. Panthawi imodzimodziyo, mchere wa barium wosungunuka m'madzi ndi poizoni kwambiri. Izi zitha kukhala zovulaza chilengedwe, tikulimbikitsidwa kuti zisalowe m'chilengedwe.
Khodi yangozi: Chinthu choyaka chokhudzana ndi chinyezi. GB 4.3 Kalasi 43009. UN No. 1400. IMDG KODI 4332 tsamba, Kalasi 4.3.
Mukamwa molakwika, imwani madzi ofunda ambiri, yambitsani kusanza, sambani m'mimba ndi 2% mpaka 5% sodium sulfate solution, kuyambitsa kutsekula m'mimba, ndikupita kuchipatala. Kupuma fumbi kungayambitse poizoni. Odwala ayenera kuchotsedwa m'dera loipitsidwa, kupumula, ndi kutentha; Ngati kupuma kwasiya, nthawi yomweyo perekani kupuma kochita kupanga ndikupita kuchipatala. Mwangozi kuwaza m'maso, muzimutsuka ndi madzi ambiri, funani chithandizo chamankhwala pakavuta kwambiri. Kukhudza khungu: Yambani ndi madzi kaye, kenaka muzitsuka bwino ndi sopo. Ngati wapsa, pitani kuchipatala. Nthawi yomweyo muzimutsuka mkamwa mwanu ngati mwamwedwa molakwika ndikupita kuchipatala mwachangu.
Mukamagwira barium, ndikofunikira kulimbitsa chitetezo cha ogwira ntchito. Zinyalala zonse ziyenera kuthiridwa ndi ferrous sulphate kapena sodium sulphate kuti mutembenuzire mchere wapoizoni wa barium kukhala otsika sungunuka barium sulphate.
Ogwiritsa ntchito ayenera kuvala zotchingira fumbi zodzipangira okha, magalasi oteteza mankhwala, zovala zoteteza mankhwala, ndi magolovesi a rabala. Khalani kutali ndi magwero a moto ndi kutentha, ndipo kusuta ndikoletsedwa kwambiri kuntchito. Gwiritsani ntchito makina opumira ndi mpweya wosaphulika. Pewani kukhudzana ndi okosijeni, zidulo, ndi maziko, makamaka ndi madzi.
Kusungidwa mu palafini ndi parafini wamadzimadzi, wopakidwa m'mabotolo agalasi otsekedwa ndi mpweya, ndi ukonde wolemera 1kg pa botolo, kenaka amawunikiridwa m'mabokosi amatabwa okhala ndi padding. Pazopaka pake payenera kukhala zolembedwa zomveka bwino za "Zinthu Zoyaka Zoyaka Zogwirizana ndi Chinyezi", zokhala ndi "Toxic Substances".
Sungani m'malo ozizira, owuma, ndi mpweya wabwino wosayaka. Khalani kutali ndi kutentha ndi moto, pewani chinyezi, ndipo pewani kuwonongeka kwa chidebe. Osakumana ndi madzi, asidi, kapena oxidant. Olekanitsidwa ndi zinthu zachilengedwe, zoyaka, komanso zinthu zomwe zimatha okosijeni mosavuta kuti zisungidwe ndi kunyamulidwa, ndipo sizinganyamulidwe pamasiku amvula.
Pakakhala moto, mchenga wouma, ufa wowuma wa graphite kapena chozimitsira moto wouma ukhoza kugwiritsidwa ntchito kuzimitsa moto, ndipo madzi, thovu, carbon dioxide kapena halogenated hydrocarbon extinguishing agent (monga 1211 chozimitsa chozimitsa) sichiloledwa.