Ka hoʻohana ʻana i ka ʻeleʻele honua ʻaʻole Praseodymium (pr).

Praseodymium (Pr) Ma kahi o 160 makahiki aku nei, ua ʻike ʻo Swedish Mosander i kahi mea hou mai ka lanthanum, akā ʻaʻole ia he mea hoʻokahi. Ua ʻike ʻo Mosander ua like loa ke ʻano o kēia mea me ka lanthanum, a kapa ʻia ʻo ia ʻo "Pr-Nd". "Praseodymium a me Neodymium" ʻo ia hoʻi "māhoe" ma ka ʻōlelo Helene. Ma kahi o 40 mau makahiki ma hope mai, ʻo ia hoʻi, i ka makahiki 1885, i ka wā i hoʻokumu ʻia ai ka lole kukui mahu, ua hoʻokaʻawale maikaʻi ʻo Austrian Welsbach i ʻelua mau mea mai "praseodymium a me neodymium", i kapa ʻia ʻo "neodymium" a ʻo kekahi i kapa ʻia ʻo "praseodymium". Hoʻokaʻawale ʻia kēia ʻano "māhoe", a loaʻa i ka mea praseodymium kona honua ākea e hōʻike i kāna mau talena. ʻO ka Praseodymium kahi mea ʻeleʻele honua me ka nui nui, i hoʻohana ʻia i ke aniani, nā seramika a me nā mea magnetic.

praseodymium (Pr)

Praseodymium melemele (no ke aniani) ʻulaʻula atomika (no ke aniani).

Pr-Nd huila

praseodymium oxide

Praseodymium neodymium fluoride

ʻO ka hoʻohana ākea o praseodymium:

(1) Hoʻohana nui ʻia ka Praseodymium i ke kūkulu ʻana i nā seramika a me nā seramika hoʻohana i kēlā me kēia lā. Hiki ke hoʻohui ʻia me ka ceramic glaze e hana i ke kala kala, a hiki ke hoʻohana ʻia e like me ka pigment underglaze wale nō. ʻO ka puaʻa i hana ʻia he melemele māmā me ke kala maʻemaʻe a nani.

(2) Hoʻohana ʻia no ka hana ʻana i nā magnet mau loa. ʻO ke koho ʻana i nā metala praseodymium a me neodymium ma kahi o ka metala neodymium maʻemaʻe e hana i nā mea magnet paʻa hiki ke hoʻomaikaʻi i kona kūpaʻa oxygen a me nā waiwai mechanical, a hiki ke hana ʻia i mau magnet o nā ʻano like ʻole. Hoʻohana nui ʻia i nā ʻenehana uila like ʻole a me nā kaʻa.

(3) no ka petroleum catalytic cracking. ʻO ka hoʻohui ʻana i ka praseodymium a me ka neodymium i hoʻonui ʻia i loko o Y zeolite molecular sieve e hoʻomākaukau ai i ka petroleum cracking catalyst hiki ke hoʻomaikaʻi i ka hana, ke koho a me ka paʻa o ka catalyst. Ua hoʻomaka ʻo Kina i ka hoʻohana ʻana i ka ʻoihana i nā makahiki 1970, a ke hoʻonui nei ka hoʻohana ʻana.

(4) Hiki ke hoʻohana ʻia ka Praseodymium no ka hoʻoliʻiliʻi abrasive. Eia kekahi, hoʻohana nui ʻia ka praseodymium i ke kahua o ka fiber optical.