Home Categories Inorganic chemistry Dysprosium oxide
A3147912

Dysprosium oxide , ≥99.99%metalsbasis , 1308-87-8

Synonym(s):
Didysprosium trioxide;Dysprosia;Dysprosium oxide

CAS NO.:1308-87-8

Empirical Formula: Dy2O3

Molecular Weight: 373

MDL number: MFCD00010986

EINECS: 215-164-0

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Update time: 2022-07-08

PRODUCT Properties

Melting point: 2330-2350 °C
Density  7.81 g/mL at 25 °C(lit.)
storage temp.  no restrictions.
solubility  soluble in acid solutions
form  nanopowder
color  White
Specific Gravity 7.81
PH 7.0
Water Solubility  insoluble
Sensitive  Hygroscopic
Crystal Structure Cubic
crystal system Cube
Merck  14,3482
Space group Ia3
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
1.067061.067061.067069090901.215

InChIKey NLQFUUYNQFMIJW-UHFFFAOYSA-N
CAS DataBase Reference 1308-87-8(CAS DataBase Reference)
EPA Substance Registry System Dysprosium oxide (Dy2O3) (1308-87-8)

Description and Uses

Dysprosium oxide or dysprosia with chemical composition Dy2O3, is one of the rare earth oxide families, is a white slightly hygroscopic powder, and it is highly insoluble and thermally stable. The structure of Dy2O3 takes a cubic crystal structure below 1870 °C and monoclinic and/or hexagonal structures above this temperature. 

Dysprosium oxide also called Erbia, an important colourant in glasses and porcelain enamel glazes. High purity Dierbium trioxide are widely applied as dopant in making optical fibre and amplifier. It is particularly useful as an amplifier for fiber optic data transfer. Dierbium trioxide has a pink color, and is sometimes used as a colorant for glass, cubic zirconia and porcelain. The glass is then often used in sunglasses and cheap jewelry.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Precautionary statements  P271-P261-P280
Safety Statements  24/25
WGK Germany  2
RTECS  JW1060000
TSCA  Yes
HS Code  2846 90 20
Toxicity LD50 orally in Rabbit: > 5000 mg/kg

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