| Reactions of Scandium |
 Reactions with water |
| When heated or finely divided scandium will dissolve in water to form solutions containing the aquated Sc(III) and hydrogen gas.
|
2Sc(s) + 6H2O(aq) 2Sc3+(aq) + 6OH-(aq) + 3H2(g) |
| Reactions with air |
| Scandium tarnishes in air and burns readily to form scandium(III) oxide. |
| 4Sc(s) + 3O2(g)2Sc2O3(s) |
| Reactions with halogens |
| Scandium is very reactive towards all of the halogens, to produce trihalides. |
| 2Sc(s) + 3F2(g)2ScF3(s) |
| 2Sc(s) + 3Cl2(g)2ScCl3(s) |
| 2Sc(s) + 3Br2(l)2ScBr3(s) |
| 2Sc(s) + 3I2(s)2ScI3(s) |
| Reactions with acids |
| Scandium readily dissolves in dilute hydrochloric acid to form solutions containing the aquated Sc(III) ion together with
hydrogen gas.
|
| 2Sc(s) + 6HCl(aq)2Sc3+(aq) + 6Cl-(aq) + 3H2(g) |
Sc(s)