Chemical reactions of the elementsReaction of dysprosium with airDysprosium metal tarnishes slowly in air and burns readily to form dysprosium (III) oxide, Dy2O3. 4Dy + 3O2 → 2Dy2O3 Reaction of dysprosium with waterThe silvery white metal dysprosium is quite electropositive and reacts slowly with cold water and quite quickly with hot water to form dysprosium hydroxide, Dy(OH)3, and hydrogen gas (H2). 2Dy(s) + 6H2O(g) → 2Dy(OH)3(aq) + 3H2(g) Reaction of dysprosium with the halogensDysprosium metal reacts with all the halogens to form dysprosium(III) halides. So, it reacts with fluorine, F2, chlorine, Cl2, bromine, I2, and iodine, I2, to form respectively dysprosium(III) bromide, DyF3, dysprosium(III) chloride, DyCl3, dysprosium(III) bromide, DyBr3, and dysprosium(III) iodide, DyI3. 2Dy(s) + 3F2(g) → 2DyF3(s) [green] 2Dy(s) + 3Cl2(g) → 2DyCl3(s) [white] 2Dy(s) + 3Br2(g) → 2DyBr3(s) [white] 2Dy(s) + 3I2(g) → 2DyI3(s) [green] Reaction of dysprosium with acidsDysprosium metal dissolves readily in dilute sulphuric acid to form solutions containing the yellow aquated Dy(III) ion together with hydrogen gas, H2. It is quite likely that Dy3+(aq) exists as largely the complex ion [Dy(OH2)9]3+ 2Dy(s) + 3H2SO4(aq) → 2Dy3+(aq) + 3SO42-(aq) + 3H2(g) Reaction of dysprosium with basesWebElements ShopWebElements now has a WebElements shop at which you can buy periodic table posters, mugs, T-shirts, games, molecular models, and more.
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