Scandium (Sc) pulber

Skandiumipulbrit kasutatakse paljudes rakendustes. Selle aatommass on 44 956 ja aatomarv 21. See on perioodilisuse tabeli kahekümne esimene element ja üleminekurühma esimene element esimesel pikal perioodil; sellel on isotoobid 40 Sc ja 51 Sc, samuti keskmise väärtusega isotoop, mida tuntakse 45 Sc nime all; kõik need isotoobid tekivad tuumareaktsioonide tulemusena.
Scandium was discovered in 1879 by L.F. Nilson while conducting rare earth studies. It is a soft, white metal with silver tones that, when exposed to air, promotes the formation of a white nitride layer and, when exposed to water, burns, producing a flame with yellow and red tones. Scandium powder and some other scandium compounds are frequently used as catalysts in the conversion of acetic acid to acetone. It can also be used to improve the germination of vegetable seeds.