Ma Biraha Dhulka Naadirka ah baa mise Macdanta?

Ma Biraha Dhulka Naadirka ah baa mise Macdanta?

Dhul naadir ahwaa bir. Dhul naadir ah waa erey wadareed oo loogu talagalay 17 walxood oo bir ah oo ku jira miiska xilliyeedka, oo ay ku jiraan walxaha lanthanide iyo scandium iyo yttrium. Waxaa jira 250 nooc oo macdanta dhulka ah ee dabiiciga ah. Qofkii ugu horreeyay ee helay dhul dhif ah wuxuu ahaa farmashiistaha Finnishka ah ee Gadolin. Sannadkii 1794-kii, waxa uu ka soocay curiyaha dhulka naadirka ah nooca ugu horreeya ee macdanta culus oo la mid ah asphalt.

Dhul naadir ah waa erey wadareed oo loogu talagalay 17 walxood oo macdan ah oo ku jira shaxda xilliyeed ee curiyeyaasha kiimikada. Waa dhul naadirka ah,lanthanum, cerium, praseodymium, neodymium, promethium, samarium, iyo europium; Cunsurka dhulka dhifka ah ee culus: gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutium, scandium, iyo yttrium.Dhul dhif ah ayaa u jira sida macdanta, markaa waa macdan halkii ay ka ahaan lahaayeen ciidda. Shiinuhu waxa uu leeyahay kaydka dhulka naadirka ah ee ugu qanisan, oo inta badan ku urursan gobolada iyo magaalooyinka sida Inner Mongolia, Shandong, Sichuan, Jiangxi, iwm.

Dhulka naadirka ah ee ku jira meelaha dhifka ah ee dhulku waxay guud ahaan u yihiin qaab kaarboonaydhyo, fluoride, fosfooraska, oxides, ama silicates aan milmi karin. Curiyayaasha dhulka naadirka ah waa in loo beddelaa xeryahooda ku milmay biyaha ama acids inorganic iyada oo loo marayo isbeddello kiimikaad oo kala duwan, ka dibna la maro habab ay ka mid yihiin kala dirid, kala-soocid, nadiifin, fiirsi, ama calcination si loo soo saaro isku-dhafka dhulku naadirka ah ee kala duwan sida chlorides-ka dhulka naadirka ah ee isku dhafan, kuwaas oo waxa loo isticmaali karaa sidii alaab ama alaab cayriin ah oo lagu kala soocayo curiyayaasha dhulka naadirka ah. Habkan waxa loo yaqaannaa naadirka xoogga saaridda dhulka, oo sidoo kale loo yaqaanno daawaynta ka hor.