Bariumhe metala kaumaha. ʻO nā metala kaumaha e pili ana i nā metala me ka umekaumaha kikoʻī i ʻoi aku ma mua o 4 a 5, ʻoiai he 7 a 8 paha ka nui o ka barium, no laila he metala kaumaha ka barium. Hoʻohana ʻia nā pūhui Barium no ka hana ʻana i ka ʻōmaʻomaʻo i ke ahi, a hiki ke hoʻohana ʻia ka barium metala ma ke ʻano he degassing agent no ka wehe ʻana i ke kinoea mai loko mai o nā paipu māmā a me nā paipu kukuna cathode, a me kahi mea hoʻopau degassing no ka hoʻomaʻemaʻe ʻana i nā metala.
He metala kaumaha anei ka barium?
He metala kaumaha ka Barium.
Ke kumu: E pili ana nā metala kaumaha i nā metala me ka ʻumekaumaha kikoʻī i ʻoi aku ma mua o 4 a 5, ʻoiai he 7 a i ʻole 8 ka nui o ka barium, no laila he metala kaumaha ka barium.
Introduction to Barium: He mea ikaika ka Barium i loko o nā metala honua alkaline, he metala lepo alkaline palupalu me ka luster keʻokeʻo kālā. He ikaika loa nā waiwai kemika, a ʻaʻole i ʻike ʻia ka barium elemental ma ke ʻano. ʻO nā minela maʻamau o ka barium ma ke ʻano he barium sulfate a me ka barium carbonate, ʻaʻole hiki ke hoʻoheheʻe ʻia i ka wai.
Ka hoʻohana ʻana i ka barium: Hoʻohana ʻia nā pūhui Barium e hana i ka ʻōmaʻomaʻo i ke ahi, ametala bariumhiki ke hoʻohana ʻia ma ke ʻano he degassing agent e hoʻoneʻe i ke kinoea mai loko mai o nā paipu māmā a me nā pahu ray cathode, a me kahi mea degassing no ka hoʻomaʻemaʻe ʻana i nā metala.
He aha ke ʻano o ka barium?
ʻO Barium kahi mea kemika me ka hōʻailona kemika Ba.
He nui nā hoʻohana ʻana o Barium, ʻo kekahi o ia mau mea maʻamau:
1 Hoʻohana ʻia nā pūhui Barium e like me nā mea maka a me nā mea hoʻohui i ka ʻoihana. No ka laʻana, hiki ke hoʻohana ʻia nā pūhui barium e hana i nā phosphors kukui, nā mea pale ahi, nā mea hoʻohui, a me nā catalysts.
2. Hiki ke hoʻohanaʻia ka Barium no ka hanaʻana i nā paipu X-ray a hoʻohana nuiʻia i nā lāʻau lapaʻau a me nāʻoihanaʻoihana. ʻO ka paipu X-ray he mea hana e hana ana i nā kukui X no nā noi diagnostic a hoʻāʻo.
3， ʻO ke aniani alakaʻi Barium he mea maʻamau i hoʻohana ʻia i ka hana ʻana i nā mea kani, telescopes, a me nā lens microscopic.
4， Hoʻohana ʻia ʻo Barium ma ke ʻano he mea hoʻohui a me nā mea hoʻohui i ka hana pākaukau. Hiki iā ia ke hoʻomaikaʻi i ka hana a me ka mālama ʻana i ka ikehu o nā pila.
5. Hoʻohana pū ʻia nā pūhui Barium e hana i nā huahana e like me nā pesticides, ceramics, a me nā lipine magnetic. Hiki ke hoʻohana ʻia nā pūhui Barium no ka mālama ʻana i nā mea ʻino a me nā mauʻu ma nā lau a me nā māla.
E ʻoluʻolu e hoʻomaopopo he mea ʻawaʻawa ka barium, no laila pono e mālama pono i ka hoʻohana ʻana a me ka lawelawe ʻana i nā pūhui barium, a pono e hahai ʻia nā hana palekana a me nā hana hoʻomau.
Nā waiwai o ka barium
ʻO ka Barium kahi mea metala, keʻokeʻo kālā keʻokeʻo, me ka lapalapa ʻōmaʻomaʻo melemele ke puhi ʻia. Hoʻohana ʻia nā paʻakai Barium e like me nā puaʻa keʻokeʻo kiʻekiʻe. ʻO ka metala Barium kahi deoxidizer maikaʻi loa no ka hoʻomaʻemaʻe keleawe: kahi ala diagnostic no kekahi mau maʻi esophageal a me ka maʻi ʻōpū, kahi e lawe ai nā mea maʻi i ka barium sulfate a hoʻopaʻa i ka fluoroscopy X-ray a i ʻole ke kiʻi. ʻAlohi iki, me ka hoʻonui. Density 3. 51 grams no ke kenimika cubic. Ka helu hehee 725 ℃. Ka helu hoʻolapalapa 1640 ℃. Valence+2. Ionization ikehu 5. 212 electron volts. ʻOi aku ka ikaika o nā waiwai kemika a hiki ke hana me ka nui o nā metala ʻole. Ke puhi ʻia i nā wela kiʻekiʻe a me ka oxygen, hana ʻia ka barium peroxide. E maʻalahi ka oxidize, hiki ke hana me ka wai e hana i nā hydroxides a me ka hydrogen; E hoʻoheheʻe i loko o ka waikawa a hana i nā paʻakai. He mea ʻawaʻawa nā paʻakai Barium koe wale nō ka barium sulfate. ʻO ke ʻano o ka hana metala ma waena o ka potassium a me ka sodium.
Hiki iā mākou ke hāʻawi iā 99-99.5% min maʻemaʻe kiʻekiʻemetala barium,e hoʻouna mai iā mākou i ka nīnau.
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