FOR SALE - Scandium, element # 21
Asking price: 44.955912 g per mole
Who/ where/ when/ how?
The frame of this bicycle uses Scandium.
This bat is also made from some Scandium.
This plane uses a Scandium and aluminum alloy outer frame.
Structure and reactions
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 of nitric acid (HNO3) and 48% hydrofluoric acid (HF), possibly due to the formation of an impermeable passive layer. Scandium turnings ignite in air with a brilliant yellow flame to form scandium (III) oxide. Scandium oxide reacts with most acids upon heating, to produce the expected hydrated product. For example, heating in excess aqueous HCl produces hydrated ScCl3 and nH2O. Scandium reacts with 15M of HNO3 to form Sc(NO3)3. When exposed to 6 M of NaOH, no reaction occurs.