| Reactions of Dysprosium |
 Reactions with water |
| Dysprosium is quite electropositive and reacts slowly with cold water and quite quickly with hot water to form dysprosium
hydroxide and hydrogen gas.
|
2Dy(s) + 6H2O(g) 2Dy(OH)3(aq) + 3H2(g) |
| Reactions with air |
| Dysprosium tarnishes slowly in air and burns readily to form dysprosium (III) oxide. |
| 4Dy(s) + 3O2(g)2Dy2O3(s) |
| Reactions with halogens |
| Dysprosium reacts with all the halogens to form dysprosium(III) halides. |
| 2Dy(s) + 3F2(g)2DyF3(s) |
| 2Dy(s) + 3Cl2(g)2DyCl3(s) |
| 2Dy(s) + 3Br2(g)2DyBr3(s) |
| 2Dy(s) + 3I2(g)2DyI3(s) |
| Reactions with acids |
| Dysprosium dissolves readily in dilute sulphuric acid to form solutions containing the yellow aquated Dy(III) ion together with hydrogen gas.
|
| 2Dy(s) + 3H2SO4(aq)2Dy3+(aq) + 3SO42-(aq) + 3H2(g) |
| |