Home Materials » Metals » Dysprosium, Dy

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)	ΔH_vap/kJmol^-1	280
Outer electron configuration	4f¹⁰6s²	ΔH_{monoatomic gas}/kJmol^-1	291
Metal radius(6-coordinate)/pm	178.1	ΔH_{(hydration Ln}³⁺_)/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	E^o(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	Remarks
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.

Foil
D1-3003-F 0.004" (0.1mm)
D1-3007-F 0.008" (0.2mm)

Powder
D1-10000-P -40 mesh
D1-10003-P -100 mesh
D1-10005-P -325 mesh

Rods
D1-2000-R 0.250" (6.35mm)
D1-2001-R 0.500" (12.7mm)

Sheet
D1-4002-S 0.020" (0.5mm)
D1-4004-S 0.040" (1mm)

Our company

My account

Testbourne Ltd
Unit C, The Loddon Centre
Wade Road
Basingstoke
Hampshire. RG24 8FL, England, UK

+44 (0)1256 467055

+44 (0)1256 362955

info@testbourne.com

Testbourne offers an ISO9001 quality assured service to companies across a wide market area from R&D through to on-line production. Our company objective is to provide a fast, efficient and personalised service, with full technical support to all our customers.