I-Scandium, enophawu lwekhemikhali engu-Sc kunye nenombolo yayo ye-atom engama-21, yintsimbi ethambileyo, emhlophe-emhlophe eguqukayo. Ihlala ixutywa kunye ne-gadolinium, i-erbium, njl., kunye nemveliso encinci kunye nexabiso eliphezulu. Eyona valence iphambili yi-oxidation state+trivalent.
I-Scandium ikhona kwiiminerali ezininzi ezinqabileyo zomhlaba, kodwa zimbalwa kuphela iiminerali ze-scandium ezinokukhutshwa emhlabeni. Ngenxa yokufumaneka okuphantsi kunye nobunzima bokulungiselela i-scandium, ukukhutshwa kokuqala kwenziwa ngo-1937.
I-Scandium inomlinganiselo ophezulu wokunyibilika, kodwa ubuninzi bayo busondele kwi-aluminiyam. Ngethuba nje amawaka ambalwa e-scandium yongezwa kwi-aluminium, isigaba esitsha se-Al3Sc siya kwenziwa, esiya kuguqula i-aluminium alloy kwaye sibangele utshintsho olucacileyo kwisakhiwo kunye neepropati ze-alloy, ngoko uyazi indima yayo. I-Scandium ikwasetyenziswa kwindawo ephezulu yokunyibilika kwezinto ezinobunzima obufana ne-scandium titanium alloy kunye ne-scandium magnesium alloy.
Masibukele ifilimu emfutshane ukufumana iinkcukacha zayo zobuqu
Iyabiza! Iyabiza! Ixabiso elikhuluNdiyoyika ukuba izinto ezinjalo ezinqabileyo zinokusetyenziswa kuphela kwiziphekepheke kunye neerokethi.
Kwi-foodies, i-scandium ithathwa njengento engeyona inetyhefu. Uvavanyo lwezilwanyana ze-scandium compounds lugqityiwe, kwaye umthamo obulalayo we-scandium chloride unqunywe njenge-4 mg / kg intraperitoneal kunye ne-755 mg / kg yokulawula ngomlomo. Ukusuka kwezi ziphumo, iikhompawundi ze-scandium kufuneka ziphathwe njengeekhompawundi ezinetyhefu ephakathi.
Nangona kunjalo, kwiindawo ezininzi, i-scandium kunye neekhompawundi ze-scandium zisetyenziswa njenge-seasonings yomlingo, njengetyuwa, iswekile okanye i-monosodium glutamate ezandleni zabapheki, ezifuna kuphela into encinci ukwenza inqaku lokugqiba.
Ixesha lokuposa: Jul-04-2022