Metala Barium

Metala Barium
Barium, metala

 
Kumu hoʻolālā:Ba
【 Kaumaha Molekala 】137.33
[Nā ʻano kino a me ke kino] metala ʻulaʻula keʻokeʻo keʻokeʻo. ʻO ka mānoanoa pili 3.62, kahi heheʻe 725 ℃, kahi paila 1640 ℃. Cubic i waena o ke kino: α=0.5025nm. Heehee wela 7.66kJ/mol, vaporization wela 149.20kJ/mol, mahu kaomi 0.00133kpa (629 ℃), 1.33kPa (1050 ℃), 101.3kPa (1640 ℃), resistivity 29.4u Ω· 1. electronegativity Loaʻa iā Ba2+ kahi radius o 0.143nm a me kahi conductivity wela o 18.4 (25 ℃) W/(m · K). Ka helu hoʻonui laina 1.85 × 10-5 m/(M · ℃). Ma ka lumi wela, hiki ke hana me ka wai e hoʻokuʻu i ke kinoea hydrogen, hiki ke hoʻoheheʻe iki i ka waiʻona a hiki ʻole ke hoʻoheheʻe ʻia i loko o benzene.
[Nā Kūlana Kūlana]Nā Kūlana Kūlana
【 Noi】Hoʻohana nui ʻia i nā ʻāpana degassing, me ke alakaʻi, calcium, magnesium, sodium, lithium, aluminika, a me nā nickel alloys. Hoʻohana ʻia e like me ka suppressant kinoea no ka wehe ʻana i nā ʻano kinoea i koe i loko o nā paipu uila uila, a hoʻohana pū ʻia i ka hana ʻana i nā paʻakai barium.
ʻO ke ala hoʻemi wela alumini: Hoʻoheheʻe ʻia ka barium nitrate e hana i ka barium oxide. Hoʻohana ʻia ka alumini huaʻai maikaʻi ma ke ʻano he mea hoʻohaʻahaʻa, a ʻo ka ratio o nā mea ʻai ʻo 3BaO: 2A1. Hana mua ʻia ka Barium oxide a me ka alumini i nā pellets, a laila waiho ʻia i loko o kahi mālie a hoʻomehana ʻia i 1150 ℃ no ka hoʻohaʻahaʻa ʻana i ka hoʻomaʻemaʻe distillation. ʻO ka maʻemaʻe o ka barium hopena he 99%.
【 Palekana 】Hiki i ka lepo ke hoʻopau wale i ka wela o ka lumi a hiki ke hoʻohūhū a pahū ke ʻike ʻia i ka wela, ke ahi, a i ʻole ka hopena kemika. Hiki ke hoʻoheheʻe ʻia i ka wai a hana ikaika me nā ʻakika, e hoʻokuʻu ana i ke kinoea hydrogen hiki ke puhi ʻia e ka wela o ka hopena. ʻO ka loaʻa ʻana o ka fluorine, chlorine, a me nā mea ʻē aʻe hiki ke hoʻoulu i nā hopena kemika. Hoʻopili ka metala Barium me ka wai e hana i ka barium hydroxide, nona ka hopena ʻino. I ka manawa like, he mea ʻawaʻawa nā paʻakai barium hiki ke hoʻoheheʻe ʻia i ka wai. He mea ʻino paha kēia mea i ke kaiapuni, ʻōlelo ʻia ʻaʻole e hoʻokuʻu i ke kaiapuni.
Code pōʻino: ʻO ka mea hiki ke hoʻā ʻia e pili ana me ka wai. GB 4.3 Papa 43009. UN Helu 1400. IMDG CODE 4332 aoao, Papa 4.3.
I ka lawe hewa ʻana, inu i ka wai mehana, hoʻoulu i ka luaʻi, holoi i ka ʻōpū me ka 2% a 5% sodium sulfate solution, hoʻoulu i ka maʻi maʻi, a ʻimi i ka lāʻau lapaʻau. ʻO ka hoʻohu ʻana i ka lepo hiki ke make. Pono e lawe ʻia ka poʻe maʻi ma waho o ka wahi i haumia, hoʻomaha, a mālama ʻia i ka mahana; Inā pau ka hanu, e hana koke i ka hanu ʻana a e ʻimi i ka lāʻau lapaʻau. ʻO ka paʻiʻana i nā maka, holoi me ka wai nui, eʻimi i ka lāʻau lapaʻau i nā hihia koʻikoʻi. Pili i ka ʻili: Holoi mua me ka wai, a laila holoi pono me ke kopa. Inā he kuni, e ʻimi i ka lāʻau lapaʻau. Holoi koke i kou waha inā komo hewa ʻoe a e ʻimi koke i ka lāʻau lapaʻau.
I ka lawelawe ʻana i ka barium, pono e hoʻoikaika i nā ana palekana palekana o nā mea hana. Pono e mālama ʻia nā ʻōpala a pau me ka ferrous sulfate a i ʻole ka sodium sulfate e hoʻololi i nā paʻakai barium ʻona i loko o ka barium sulfate haʻahaʻa.
Pono nā mea hoʻohana e hoʻokomo i nā maka lepo kānana ponoʻī, nā maka aniani palekana, nā lole pale kemika, a me nā mīkina lima. E hoʻokaʻawale i nā kumu o ke ahi a me ka wela, a pāpā loa ʻia ka puhi paka ma kahi hana. E hoʻohana i nā ʻōnaehana hoʻoheheʻe pahū a me nā mea hana. E hōʻalo i ka hoʻopili ʻana me nā mea ʻokiʻoki, nā waikawa, a me nā kumu, ʻoi loa me ka wai.
Mālama ʻia i loko o ka ʻaila a me ka paraffin wai, i hoʻopaʻa ʻia i loko o nā ʻōmole aniani me ka hoʻopaʻa paʻa ʻana i ka ea, me ka paona ʻupena o 1kg no ka ʻōmole, a laila hoʻopaʻa ʻia i loko o nā pahu lāʻau i hoʻopaʻa ʻia me ka padding. Pono e loaʻa kahi lepili "Flammable Items in Contact with Moisture" ma ka pahu, me ka lepili lua o "Toxic Substances".
E kūʻai i loko o kahi hale kūʻai maʻalili, maloʻo, a me ka puka makani ʻole. E mālama i nā kumu wela a me ke ahi, pale i ka makū, a pale i ka pōʻino o ka pahu. Mai hoʻopili i ka wai, ka waikawa, a i ʻole nā ​​mea ʻokiʻoki. Hoʻokaʻawale ʻia mai nā mea olaola, nā mea puhi ahi, a me nā mea maʻalahi hiki ke oxidizable no ka mālama ʻana a me ka lawe ʻana, a ʻaʻole hiki ke lawe ʻia i nā lā ua.
I ka hihia o ke ahi, hiki ke hoʻohana ʻia ke one maloʻo, ka pauka graphite maloʻo a i ʻole ka pauka pauka maloʻo e kinai i ke ahi, a ʻaʻole ʻae ʻia ka wai, foam, carbon dioxide a i ʻole halogenated hydrocarbon extinguishing agent (e like me 1211 extinguishing agent).