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Dysprosium is a chemical element; it has symbol Dy and atomic number 66. It is a rare-earth element in the lanthanide series with a metallic silver luster. Dysprosium is never found in nature as a free element, though, like other lanthanides, it is found in various minerals, such as xenotime.
Naturally occurring dysprosium (66 Dy) is composed of 7 stable isotopes, 156 Dy, 158 Dy, 160 Dy, 161 Dy, 162 Dy, 163 Dy and 164 Dy, with 164 Dy being the most abundant (28.18% natural abundance). Twenty-nine radioisotopes have been characterized, with the most stable being 154 Dy with a half-life of 1.4 million years, 159 Dy with a half-life of ...
Dysprosium oxide (Dy 2 O 3) is a sesquioxide compound of the rare earth metal dysprosium. It is a pastel yellowish-greenish, slightly hygroscopic powder having specialized uses in ceramics, glass, phosphors, lasers, dysprosium metal halide lamps, and as a Faraday rotator. [3] It can react with acids to produce the corresponding dysprosium(III ...
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references. Dysprosium (III) nitrate is an inorganic compound, a salt of dysprosium and nitric acid with the chemical formula Dy (NO 3) 3. The compound forms yellowish crystals, dissolves in water, forms a crystalline hydrate.
Dysprosium iodate is an inorganic compound with the chemical formula Dy (IO 3) 3. It can be obtained by the reaction of dysprosium nitrate or dysprosium chloride and iodic acid at 200 °C. It exists in two crystal forms: α-form and β-form. [ 1] Its solubility in water at 25 °C is 1.010±0.001 10 −3 mol·dm −3 ).
Properties. Dysprosium (III) phosphate decomposes into dysprosium oxyphosphate and phosphorus pentoxide above 1200 °C. [2] It reacts with sodium fluoride to obtain NaDyFPO 4: [3] NaF + DyPO4 → NaDyFPO4. It reacts with sodium molybdate at high temperature to generate Na 2 Dy (MoO 4) (PO 4): [4] Na2MoO4 + DyPO4 → Na2Dy (MoO4) (PO4)
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Dysprosium stannides. Under standard conditions, the elements dysprosium and tin combine to form a number of intermetallic compounds, the dysprosium stannides. Dysprosium stannides with simple empirical formulas include Dy 5 Sn 3 and DySn 2, but four other intermetallics have intermediate composition. None is believed to survive temperatures ...