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Tetraterbium heptaoxide

CAS# 12037-01-3

Molecular Formula : O7Tb4-2 

Packing: 25kg/fiber drum


Profile
Terbium(III,IV) oxide, occasionally called tetraterbium heptaoxide, has the formula Tb4O7, though some texts refer to it as TbO1.75. There is some debate as to whether it is a discrete compound, or simply one phase in an interstitial oxide system. Tb4O7 is one of the main commercial terbium compounds, and the only such product containing at least some Tb(IV) (terbium in the +4 oxidation state), along with the more stable Tb(III). It is produced by heating the metal oxalate, and it is used in the preparation of other terbium compounds. Terbium forms three other major oxides: Tb2O3, TbO2, and Tb6O11.
 
Technical Data Sheet 
Items Specification Results
(La2O3/REO+ CeO2/REO+ Pr6O11/REO+ Nd2O3/REO+ Sm2O3/REO+ Er2O3/REO+ Tm2O3/REO+ Y2O3/REO+ Lu2O3/REO)   <0.002 Conform
Eu2O3/REO  <0.002 <0.0002
Gd2O3/REO <0.002 <0.0002
Dy2O3/REO  <0.002 <0.001
Ho2O3/REO  <0.001 <0.0003
Y2O3/REO  <0.001 <0.0001
Fe2O3  <0.0005 <0.0004
SiO2 <0.003 <0.002
CaO <0.002 <0.0015
Cl-  <0.02 0.0045
L.O.I    ﹤1.0 Comform
TREO  ≧99% Comform
Tb4O7  /REO ≧99.99% Comform
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