| Formula |
CeO2
Formula Weight: 172.1
Chemical Abs # 1306-38-3 |
| Physical
Properties |
Melting
Point: >> 2,500' C
Crystal Density 7.28 g/cm3
Fluorite Strusture |
| Packaging |
220
lb in a 20 gallon fiber drum
2 & 25 lb packages - for small shipments
|
| Shipping
Point |
| Mountain
Pass, CA |
| Product
Composition |
Cerium
Oxide
| Loss
on Ignition @ 1,000' C 1% max |
|
CeO2
|
96.0
|
%
min
|
| La2O3 |
3.0
|
%
max
|
| Pr6O11 |
0.5
|
%
max
|
| Nd2O3 |
1.5
|
%
max
|
|
| Fe2O3 |
0.01
|
%
max
|
| CaO |
0.5
|
%
max
|
| SrO |
0.2
|
%
max
|
| Na2O |
0.10
|
%
max
|
| PbO |
0.02
|
%
max
|
| MnO2 |
0.005
|
%
max
|
|
| F |
0.15
|
%
max
|
| SO4 |
0.15
|
%
max
|
| Particle
Size (FAPS) |
5
microns max |
| Screened |
-25
mesh |
| Bulk
Density |
=1.0
g/cm3 |
| At
high temperatures the composition of this oxide depends
on the oxygen partial pressure : this will be reflected
in any measured LOI. |
Other
derivatives of Cerium are also available including:
acetate, hydrate, chloride, nitrate and carbonate
Please request the appropriate data sheet and further information.
Chemical Properties
Cerium oxide, the stable oxide of cerium, is formed when
any Ce salt is calcined in air. It is slightly hygroscope
and is soluble in strong acids, The more readily if a trace
of reducing agent is carbonate added. Both Ce(IV) and Ce
(III) oxidation states are known; the Ce(IV)/Ce(III) couple,
around +1.6V, makes ceric, Ce4+, salts strong oxidizing
agents that, in the presence of complexing agents, are nevertheless
stable in aqueous solution. Cerous, Ce3+, salts resemble
other lanthanide salts with an insoluble and fluoride plus
soluble chloride and nitrate.
|
|
