Barium icyuma

Barium icyuma
Barium, icyuma

 
Inzira yuburyo:Ba
Weight Ibiro bya molekuline】137.33
[Ibintu bifatika na chimique] Ifeza yumuhondo yera icyuma cyoroshye. Ubucucike bugereranije 3.62, gushonga ingingo 725 ℃, ingingo itetse 1640 ℃. Umubiri ushingiye kubic: α = 0.5025nm. Gushonga ubushyuhe 7.66kJ / mol, ubushyuhe bwumuyaga 149.20kJ / mol, umuvuduko wumuyaga 0.00133kpa (629 ℃), 1.33kPa (1050 ℃), 101.3kPa (1640 ℃), kurwanya 29.4u Ω · cm, electronegativite 1.02. Ba2 + ifite radiyo 0.143nm hamwe nubushyuhe bwumuriro wa 18.4 (25 ℃) W / (m · K). Coefficient yo kwagura umurongo 1.85 × 10-5 m / (M · ℃). Ku bushyuhe bwicyumba, byoroshye gufata amazi kugirango irekure gaze ya hydrogène, ikabura gake muri alcool kandi idashonga muri benzene.
[Ubuziranenge]Ibipimo ngenderwaho
Gusaba】Ikoreshwa cyane mugutesha agaciro amavuta, harimo gurş, calcium, magnesium, sodium, lithium, aluminium, na nikel. Ikoreshwa nka suppressant ya gaz kugirango ikureho imyuka ya gaze isigaye mumiyoboro ya vacuum idafite umugozi, kandi ikoreshwa no kubyara umunyu wa barium.
Uburyo bwo kugabanya ubushyuhe bwa aluminium: Nitrat ya Barium irabora cyane kugirango itange oxyde ya barium. Aluminium nziza yuzuye ikoreshwa nkibintu bigabanya, kandi igipimo cyibigize ni 3BaO: 2A1. Barium oxyde na aluminiyumu banza bikozwe muri pellet, hanyuma bigashyirwa mubituje hanyuma bigashyuha kugeza kuri 1150 ℃ kugirango bigabanye kweza. Ubuziranenge bwa barium yavuyemo ni 99%.
Umutekano】Umukungugu ukunze gutwikwa bidatinze ku bushyuhe bwicyumba kandi birashobora gutera gutwikwa no guturika mugihe uhuye nubushyuhe, umuriro, cyangwa imiti. Ikunda kwangirika kwamazi kandi igakora cyane na acide, ikarekura gaze ya hydrogène ishobora gutwikwa nubushyuhe bwa reaction. Guhura na fluor, chlorine, nibindi bintu bishobora gutera imiti ikaze. Ibyuma bya Barium bifata amazi kugirango bibeho hydroxide ya barium, igira ingaruka mbi. Muri icyo gihe, imyunyu ngugu ya barium umunyu ni uburozi cyane. Iyi ngingo irashobora kwangiza ibidukikije, birasabwa kutayireka ngo yinjire mubidukikije.
Kode ya Hazard: Ibintu byaka umuriro uhuye nubushuhe. GB 4.3 Icyiciro 43009. UN No 1400. Kode ya IMDG 4332 page, Icyiciro 4.3.
Mugihe ubifata nabi, unywe amazi menshi ashyushye, utume kuruka, koza igifu ukoresheje sodium sulfate ya 2% kugeza 5%, bitera impiswi, hanyuma ushakire kwa muganga. Guhumeka umukungugu birashobora gutera uburozi. Abarwayi bagomba kuvanwa ahantu handuye, kuruhuka, no gushyuha; Niba guhumeka bihagaze, hita ukora guhumeka neza hanyuma ushakire kwa muganga. Ku bw'impanuka kumeneka mumaso, kwoza amazi menshi, kwivuza mugihe gikomeye. Guhuza uruhu: Banza ukarabe n'amazi, hanyuma ukarabe neza n'isabune. Niba hari ibicanwa, shaka kwivuza. Ako kanya kwoza umunwa niba winjiye mu makosa hanyuma wihutire kwivuza.
Iyo ukoresha barium, birakenewe gushimangira ingamba zo kurinda umutekano wabakoresha. Imyanda yose igomba gutunganyirizwa hamwe na sulfate ferrous cyangwa sodium sulfate kugirango ihindure imyunyu yuburozi ya barium sulfate nkeya ya barium sulfate.
Abakora bagomba kwambara masike yungurura umukungugu, amadarubindi yumutekano yimiti, imyenda ikingira imiti, hamwe na gants ya rubber. Irinde inkomoko yumuriro nubushyuhe, kandi birabujijwe kunywa itabi mukazi. Koresha sisitemu yo guhumeka n'ibikoresho. Irinde guhura na okiside, acide, na base, cyane cyane namazi.
Ubitswe muri kerosene na paraffine y'amazi, bipfunyika mu macupa y'ibirahure bifunze umuyaga mwinshi, hamwe n'uburemere bwa kg 1 kuri buri gacupa, hanyuma ukibanda mu dusanduku twibiti twometseho padi. Hagomba kubaho ikirango cyumvikana "Ibintu byaka umuriro bihuye nubushuhe" kumupaki, hamwe na label ya kabiri ya "Uburozi".
Ubike mububiko bukonje, bwumye, kandi buhumeka butabikwa. Irinde ubushyuhe n’umuriro, wirinde ubushuhe, kandi wirinde kwangirika kwa kontineri. Ntukajye uhura n'amazi, aside, cyangwa okiside. Bitandukanijwe nibintu kama, ibicanwa, nibintu byoroshye okiside yo kubika no gutwara, kandi ntibishobora gutwarwa muminsi yimvura.
Mugihe habaye umuriro, umucanga wumye, ifu ya grafite yumye cyangwa kuzimya ifu yumye irashobora gukoreshwa mukuzimya umuriro, kandi amazi, ifuro, karuboni ya dioxyde de carbone cyangwa hydrocarubone yo kuzimya (nka 1211 yo kuzimya) ntibyemewe.