Barium metal

Barium metal
Barium, igwe

 
Usoro nhazi:Ba
【 molekụla arọ】137.33
[Physical and Chemical Properties] Ọdụdọ ọlaọcha ọcha soft metal. Njupụta ikwu 3.62, ebe mgbaze 725 ℃, ebe esi 1640 ℃. Cubic gbadoro ụkwụ n'ahụ: α=0.5025nm. Na-agbaze okpomọkụ 7.66kJ / mol, vaporization okpomọkụ 149.20kJ / mol, uzuoku mgbali 0.00133kpa (629 ℃), 1.33kPa (1050 ℃), 101.3kPa (1640 ℃), resistivity 29.40 Ω. Ba2+ nwere radius nke 0.143nm na a thermal conductivity nke 18.4 (25 ℃) W / (m · K). Ọnụọgụ mgbasawanye Linear 1.85 × 10-5 m/(M · ℃). N'ebe okpomọkụ dị n'ime ụlọ, ọ na-eji mmiri eme ihe n'ụzọ dị mfe iji hapụ hydrogen gas, bụ nke dị ntakịrị soluble na mmanya na-adịghị ike na benzene.
[Ọkọlọtọ dị mma]Ụkpụrụ ntụaka
【 Ngwa】A na-eji ya eme ihe na ihe ndị na-ekpo ọkụ, gụnyere lead, calcium, magnesium, sodium, lithium, aluminum, na nickel alloys. A na-eji ya dị ka ihe na-egbochi gas na-ewepụ ikuku ikuku nke fọdụrụ na tubes ikuku ikuku, ma na-ejikwa ya na-emepụta nnu barium.
Usoro mbelata okpomọkụ nke aluminom: Barium nitrate na-emebi nke ọma iji mepụta barium oxide. A na-eji aluminom dị mma mee ihe dị ka onye na-ebelata ihe, na nha nke ihe oriri bụ 3BaO: 2A1. A na-ebu ụzọ mee Barium oxide na aluminom ka ọ bụrụ pellets, nke a na-etinye ya n'otu ebe ma kpoo ọkụ ruo 1150 ℃ maka mbelata distillation ọcha. Ịdị ọcha nke barium pụtara bụ 99%.
【 Nchekwa】Uzuzu na-enwekarị ọkụ ọkụ na mberede n'ime ụlọ ma nwee ike ibute combustion na mgbawa mgbe ekpughere ya na okpomọkụ, ọkụ, ma ọ bụ mmeghachi omume kemịkal. Ọ na-adịkarị mfe ire ere mmiri ma na-eme ihe ike na acids, na-ahapụ hydrogen gas nke nwere ike ịgbanye site na okpomọkụ nke mmeghachi omume. Ịhụta fluorine, chlorine, na ihe ndị ọzọ nwere ike ime ka mmeghachi omume kemịkal na-eme ihe ike. Iron Barium na-eji mmiri emeghachi omume iji mepụta barium hydroxide, nke nwere mmetụta na-emebi emebi. N'otu oge ahụ, mmiri barium salts na-egbu egbu nke ukwuu. Ihe a nwere ike imebi gburugburu ebe obibi, a na-atụ aro ka ọ ghara ikwe ka ọ banye na gburugburu ebe obibi.
Koodu egwu: ihe na-ere ọkụ na kọntaktị na mmiri. GB 4.3 Klas 43009. UN No. 1400. IMDG CODE 4332 ibe, Klas 4.3.
Mgbe ị na-ewere ya n'amaghị ama, ṅụọ mmiri ọkụ dị ukwuu, mee ka agbọ agbọ, sachaa afọ ya na ngwọta sodium sulfate 2% ruo 5%, mee ka afọ ọsịsa, chọọ nlekọta ahụike. Ikuku uzuzu nwere ike ịkpata nsị. Ekwesịrị ịwepụ ndị ọrịa n'ebe ahụ emetọọ, zuru ike, na-ekpo ọkụ; Ọ bụrụ na iku ume akwụsị, mee ume iku ume ozugbo wee chọọ nlekọta ahụike. Na mberede splashing n'ime anya, itucha na ọtụtụ mmiri, na-achọ ọgwụgwọ na oké ikpe. Mmekọahụ akpụkpọ: Buru ụzọ sachaa mmiri, wee were ncha saa nke ọma. Ọ bụrụ na ọkụ dị, chọọ ọgwụgwọ. Sachaa ọnụ gị ozugbo ma ọ bụrụ na etinyere ya n'amaghị ama ma chọọ ọgwụgwọ ngwa ngwa.
Mgbe ị na-ejikwa barium, ọ dị mkpa iji wusie usoro nchebe nchekwa nke ndị na-arụ ọrụ ike. Ekwesịrị iji ferrous sulfate ma ọ bụ sodium sulfate agwọ ihe mkpofu niile iji gbanwee nnu barium na-egbu egbu ka ọ bụrụ barium sulfate dị ala.
Ndị na-arụ ọrụ kwesịrị iyi ihe mkpuchi uzuzu nzacha nke onwe, enyo nchekwa kemịkalụ, uwe nchebe kemịkal, na uwe rọba. Wepụ n'ebe ọkụ na ọkụ na-esi enweta, machibido ise siga n'ebe ọrụ. Jiri sistemu na akụrụngwa ikuku ikuku na-egbochi mgbawa. Zere kọntaktị na oxidants, acids, na bases, karịsịa na mmiri.
A na-echekwa ya na mmanụ ọkụ na paraffin mmiri mmiri, nke a na-etinye n'ime karama iko nwere mkpuchi ikuku, na-enwekwa nha nha 1kg kwa karama, wee tinye ya n'ime igbe osisi nke ejiri akwa akwa kpuchie. Ekwesịrị inwe akara doro anya "Ihe na-ere ọkụ na kọntaktị na mmiri" na nkwakọ ngwaahịa, yana akara nke abụọ nke "Ihe Na-egbu egbu".
Chekwaa n'ụlọ nkwakọba ihe dị jụụ, kpọrọ nkụ na ikuku ikuku anaghị ere ọkụ. Wepụ okpomọkụ na isi mmalite ọkụ, gbochie mmiri mmiri, ma gbochie mmebi akpa. Abatala na mmiri, acid, ma ọ bụ oxidants. Ekewapụrụ na ihe ndị dị ndụ, ihe ọkụ ọkụ, na ihe ndị nwere ike ime ngwa ngwa maka nchekwa na njem, na enweghị ike ibugharị n'ụbọchị mmiri ozuzo.
Ọ bụrụ na ọkụ na-agba, enwere ike iji ájá kpọrọ nkụ, ntụ ntụ graphite kpọrọ nkụ ma ọ bụ ihe mkpochapụ ntụ ntụ meenyụ ọkụ, a naghị anabata mmiri, ụfụfụ, carbon dioxide ma ọ bụ onye na-emenyụ hydrocarbon halogenated (dị ka onye na-ekpochapụ 1211).