CAS number : 7440-20-2
Molecular weight :45.96
Molecular formula/chemical symbol :Sc
Description :
Scandiumis achemical elementwith symbolScandatomic number21. A silvery-white metallictransition metal, it has historically been sometimes classified as arare earth element, together withyttriumand thelanthanoids. It was discovered in 1879 by spectral analysis of the mineralseuxeniteandgadolinitefromScandinavia.
Scandium is a soft metal with a silvery appearance. It develops a slightly yellowish or pinkish cast when oxidized by air. It is susceptible to weathering and dissolves slowly in most dilute acids. It does not react with a 1:1 mixture ofnitric acid(HNO3) andhydrofluoric acid(HF), possibly due to the formation of an impermeablepassive layer.
USES :
KeywordsElectronic chemicals
Report :
Codes |
%Chemical compositions |
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TRE |
SC/TRE |
Impurities Max |
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Re Impurities |
Non-RE |
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Min |
Fe |
Mg |
Mn |
Si |
Ni |
C |
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Sc-3NA |
99.5 |
99.9 |