KALSIUM METAL

ʻElua mau ala hana no ka calcium metala. ʻO kekahi ke ʻano electrolytic, e hoʻopuka ana i ka calcium metala me ka maʻemaʻe ma mua o 98.5%. Ma hope o ka sublimation hou aʻe, hiki ke hōʻea i kahi maʻemaʻe ma luna o 99.5%. ʻO kekahi ʻano he calcium metala i hana ʻia e ke ʻano aluminothermal (ʻike ʻia ʻo ke ʻano slurry), me ka maʻemaʻe ma kahi o 97%. Ma hope o ka sublimation hou aʻe, hiki ke hoʻomaikaʻi ʻia ka maʻemaʻe i kekahi ʻano, akā ʻo kekahi mau mea haumia e like me ka magnesium a me ka alumini i ʻoi aku ka kiʻekiʻe ma mua o ka calcium metala electrolytic.

Metala māmā keʻokeʻo kala. ʻAno palupalu. ʻO ka mānoanoa o 1.54 g/cm3. Ka helu hehee 839 ± 2 ℃. Ka helu hoʻolapalapa 1484 ℃. Huina valence+2. ʻO ka ikehu Ionization he 6.113 electron volts. ʻO nā waiwai kemika a hiki ke hana me ka wai a me ka waikawa, e hana ana i ke kinoea hydrogen. E hoʻokumu ʻia kahi ʻāpana o ka oxide a me ka nitride film ma ka ʻili o ka lewa e pale ai i ka ʻino hou ʻana. Ke hoʻomehana ʻia, aneane hiki ke hoʻemi ʻia nā ʻokikene metala a pau.

ʻO ka mea mua, hiki ke hoʻohana ʻia ka calcium metala ma ke ʻano he mea hōʻemi i ka ʻoihana metallurgical a me nā kemika. Hiki ke hoʻohana ʻia e hōʻemi i nā oxide metala a me nā halides. Eia hou, hiki ke hoʻohana ʻia ka calcium metala no ka hoʻomākaukau ʻana i nā metala kaumaha ʻē aʻe.

ʻO ka lua, he mea koʻikoʻi ka calcium metala i ka hana kila. Hiki ke hoʻohui ʻia ka calcium
E hoʻomaikaʻi i ka hana a me ka maikaʻi o ke kila. Hiki i ka calcium ke hoʻomaikaʻi i ka ikaika a me ka paʻakikī o ke kila, ʻoiai e hoʻemi i ka brittleness o ke kila. Eia kekahi, hiki i ka hoʻohui ʻana i ka calcium ke pale i ka hoʻokumu ʻana o nā oxides a me nā haumia i ke kila, pēlā e hoʻomaikaʻi ai i ka maikaʻi o ke kila.

Eia kekahi, hiki ke hoʻohana ʻia ka calcium metala no ka hoʻomākaukau ʻana i nā ʻāpana like ʻole. Hiki i ka calcium ke launa pū me nā mea metala ʻē aʻe.

ʻO ka hope, hiki ke hoʻohana ʻia ka calcium metala no ka hoʻomākaukau ʻana i nā pūhui like ʻole. No ka laʻana, hiki i ka calcium ke launa pū me ka oxidation ʻO nā mea e like me nā pūhui a me nā sulfides e hana i nā pūhui like ʻole, e like me ka calcium oxide a me ka calcium sulfide. Hoʻohana nui ʻia kēia mau mea i ka hana ʻana i nā mea kūkulu hale, nā mea kanu, a me nā lāʻau lapaʻau.