| Formula |
CeO2
Formula Weight: 172.1
Chemical Abs # 1306-38-3 |
| Physical
Apperance |
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
New Milford, CT - for small shipments |
| Product
Composition |
Cerium
Oxide
| Loss
on Ignition @ 1,000' C 1% max |
|
CeO2
|
99.0
|
%
min
|
| La2O3 |
100
|
ppm
max
|
| Pr6O11 |
150
|
ppm
max
|
| Nd2O3 |
150
|
ppm
max
|
|
| Fe2O3 |
50
|
ppm
max
|
| CaO |
200
|
ppm
max
|
| SrO |
50
|
ppm
max
|
| Na2O |
1,000
|
ppm
max
|
| PbO |
120
|
ppm
max
|
| MnO2 |
20
|
ppm
max
|
|
| F |
0.15
|
%
max
|
| SO4 |
0.5
|
%
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.
|
|
