ʻO ke kepau he mea kemika, ʻo kona hōʻailona kemika ʻo Pb(Latin Plumbum; ke alakaʻi, me ka helu atomika o 82, ʻo ia ka mea nui loa ʻole radioactive e ka paona atomika.
ʻO ke kēpau he metala palupalu palupalu, ʻona, a me ke kaumaha.ʻO ka waihoʻoluʻu kumu o ke kēpau he polū-keʻokeʻo, akā ma ka lewa ua uhi koke ʻia ka ʻili e kahi ʻokikene hina hina.Hiki ke hoʻohana ʻia i ke kūkulu ʻia ʻana, nā pahu pahu-ʻakika, nā poʻo kaua, nā pū kī, nā mea hoʻoheheʻe, nā mea lawaiʻa, nā mea lawaiʻa, nā mea pale radiation, nā kīʻaha a me kekahi mau mea hoʻoheheʻe, e like me nā mea hoʻoheheʻe kepau no ka wili uila.ʻO ke alakaʻi he mea metala hiki ke hoʻohana ʻia ma ke ʻano he mea kū i ka sulfuric acid corrosion, ionizing radiation, batteries a pēlā aku.Hiki ke hoʻohana ʻia kona alloy no ke ʻano, ka lawe ʻana, ka uhi kelepona, a me nā mea ʻē aʻe, a hiki ke hoʻohana ʻia no ka pana ʻana i nā lako hāmeʻa.
ʻO kēia ka ʻike kumu o ke alakaʻi no kāu kuhikuhi.
inoa Pākē | Qian | Lae paila | 1749°C |
inoa Pelekane | Ke alakaʻi | Ka hoʻoheheʻe wai | Hiki ʻole i ka wai |
ʻO kekahi inoa | Link, kaulahao, wahine, kaʻa muliwai, ʻeleʻele tin, gula, lapis gula, gula i loko o ka wai | mānoanoa | 11.3437 g/cm ³ |
ʻO ke kumu hoʻohālike | Pb | helehelena | Keʻokeʻo kala me ka ʻulaʻula |
Kaumaha molekula | 207.2 | wehewehe pilikia | mea ʻawaʻawa |
Helu helu helu CAS | 7439-92-1 | Kaha Wela Kūikawā | 0.13 kJ/(kg·K) |
Lae huikau | 327.502°C | paakiki | 1.5 |
'Ōlelo Aʻo: He mea ʻawaʻawa ke alakaʻi ponoʻī, akā ʻaʻole ia he mea ʻawaʻawa ke hana ʻia i loko o ka mea hoʻoheheʻe ʻia o ka pepa alakaʻi, ke alakaʻi puka, ke kēpau a me ka uea kepau.
Ma ʻAukake 31, 2023, me ka hoʻololi ʻana o ke kaiapuni, ke hoʻomau nei ka piʻi ʻana o ke kumukūʻai o ke kēpau, a ʻo kēia ka kiʻi kiʻi kiʻi o ka ʻupena Metal non-ferrous ʻo Yangtze River no kēlā me kēia kanaka.
Ka manawa hoʻouna: Sep-05-2023