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Terbium oxide

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Molecular Formula:Tb4O7

Molecular Weight:747.69

CAS No:12037-01-3

Property:Dark brown powder. Soluble in water, sparingly soluble in strong mineral acids. Easily hygroscopic.

Specification:

Degree of cleanliness
99.999% --99.99% --99.9%-- 99%
CHEMICAL COMPOSITION
Tb4O7/TREO (% min.)
99.999-- 99.99-- 99.9--99
TREO (% min.)
99-- 99-- 99-- 99
Losses during combustion (% max.)
0.5-- 0.5-- 1-- 1
Rare Earth impurities
% max. --% max. --% max. --% max.
Eu2O3/TREO
0.0001--0.001--0.01--0.01
Gd2O3/TREO
0.0005--0.002--0.1--0.5
Dy2O3/TREO
0.0005--0.002--0.15--0.3
Ho2O3/TREO
0.0001--0.001--0.02--0.05
Er2O3/TREO
0.0001--0.001--0.01--0.03
Tm2O3/TREO
0.0001--0.001
Yb2O3/TREO
0.0001--0.001
Lu2O3/TREO
0.0001--0.001
Y2O3/TREO
0.0003--0.001
Non-Rare Earth impurities
% max. --% max. --% max. --% max.
Fe2O3
0.0001--0.0005--0.001--0.005
SiO2
0.003--0.005--0.01--0.03
CaO
0.001--0.005--0.01-0.03
CuO
0.0001--0.0003
NiO
0.0001--0.0003
ZnO
0.0001--0.0003
PbO
0.0001--0.0003

Packing:

Usage:

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