Dysprosium, Dy

Dysprosium is a chemical element with the symbol Dy and atomic number 66.

Dysprosium is a rare earth element that has a metallic, bright silver luster, relatively stable in air at room temperature, but dissolving readily in dilute or concentrated mineral acids with the emission of hydrogen. It is soft enough to be cut with bolt-cutters (but not with a knife), and can be machined without sparking if overheating is avoided. Dysprosium's characteristics can be greatly affected even by small amounts of impurities.

Technical Data
Symbol Dy Density (25°C)/gcm-3 8.559
Atomic number 66 Melting point /°C 1407
No. of naturally occurring isotopes 7 Boiling point /°C -2600
Atomic weight 162.50 (+/-3) ΔHvap/kJmol-1 280
Outer electron configuration 4f106s2 ΔHmonoatomic gas/kJmol-1 291
Metal radius(6-coordinate)/pm 178.1 ΔH(hydration Ln3+)/kJmol-1 3637
Ionic radius(6-coordinate)/pm III 91.2 Ionization cnergy/kJmol-1 567
Ionic radius(6-coordinate)/pm II 107 Ionization energy/kJmol-1 1126
Electrical resistivity   Ionization cncrgy/kJmol-1 2230
(25°C)/μohm cm 91 Eo(M3+(aq)+ 3e- →M(S))/V -2.353
Evaporation Techniques
Temperature (oC) @Vap. Pressure Techniques Remarks
10-8 Torr 10-6 Torr 10-4 Torr Electron Beam Crucible Coil Boat
625 750 900 Good - - Tantalum  

Evaporation Materials
D1-5001-M Ingot (Please ask for sizes)
D1-5002-M pieces 12mm and smaller

The foils are available in either rectangular or circular shape. Please enter width and length or diameter of the required foil.

D1-3003-F 0.004" (0.1mm)
D1-3007-F 0.008" (0.2mm)
D1-10000-P -40 mesh
D1-10003-P -100 mesh
D1-10005-P -325 mesh
D1-2000-R 0.250" (6.35mm)
D1-2001-R 0.500" (12.7mm)
D1-4002-S 0.020" (0.5mm)
D1-4004-S 0.040" (1mm)