Europium Oxide 99% - 5000
Formula
Eu2O3
Formula Weight351.9
Chem. Abs. #1308-96-9
Appearance
White Powder
Packaging
25 lbs in a sealed polyethylene bag inside a 5-gallon plastic pail
50 gm & 4 lb packages - for small shipments
Ysical
Shipping Point
Mountain Pass, CA
Product Composition
Europium Oxide
Loss on Ignition @ 1,000' C 1% max
Eu203
99.0
%min
Ce02
2
ppm max
Pr6O11
20
ppm max
Nd2O3
20
ppm max
Sm2O3
0.01
ppm max
Gd203
0.5
ppm max
CaO
0.2
ppm max
Na2O
0.10
ppm max
Fe203
0.02
ppm max
ZnO
0.005
ppm max
 Particle Size (FAPS) 1 - 5 microns
 Screened -100 mesh (< 150 microns)

Chemical Properties
The oxide is hygroscopic and readily absorbs both water and carbon dioxide from the atmosphere. It is insoluble in water but soluble in strong mineral acids to form solutions of the Eu(III) ion, the normal valency. The Eu(III)/Eu(II) couple, -0.43V, is such that strong reducing agents can produce Eu(II) compounds. Of the Eu(III) salts, the chloride and nitrate are soluble in water whereas the hydroxide, carbonate and oxalate are insoluble.

 

Europium Oxide 99% - 5000