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Gadolinium Oxide

Gadolinium, atomic no. 64, symbol Gd, weight at 157.25, is utilized for both its high magnetic moment (7.94uB) and in phosphors and scintillated material. When mixed with EDTA dopants, it is used as an injectable contrast agent for patients undergoing magnetic resonance imaging. With its high magnetic moment, gadolinium can reduce relaxation times and thereby enhance signal intensity.
The extra stable half-full 4f electron shell with no low lying energy levels creates applications as an inert phosphor host. Gadolinium can therefore act as hosts for x-ray cassettes and in scintillated materials for computer tomography.

Available products

Product CAS11129-31-0
Chemical FormulaGd2O3
Main applicationsPhosphor; Neutron absorption; Optical glass; Electronic; GGG materials; Crystals; Ceramics
5KG 10KG 15KG

Metal analysis

Standard Specifications

Product Code

 

 

 

 

Grade

99.9999%

99.999% 

99.99%

99.9%

CHEMICAL COMPOSITION

 

 

 

 

Gd2O3/TREO (% min.)

99.9999

99.999

99.99

99.9

TREO (% min.)

99.9

99

99

99

Loss On Ignition (% max.)

0.5

0.5

1

1

Rare Earth Impurities

% max.

% max.

% max.

% max.

La2O3/TREO
CeO2/TREO
Pr6O11/TREO
Nd2O3/TREO
Sm2O3/TREO
Eu2O3/TREO
Tb4O7 /TREO
Dy2O3 /TREO
Ho2O3/TREO
Er2O3/TREO 
Tm2O3/TREO
Yb2O3/TREO
Lu2O3 /TREO
Y2O3/TREO

0.00001
0.00001
0.00001
0.00001
0.00005
0.00005
0.00005
0.00001
0.00001
0.00005
0.00001
0.00001
0.00001
0.00001

0.0001
0.0001
0.0001
0.0001
0.0005
0.0005
0.0005
0.0001
0.0001
0.0005
0.0001
0.0001
0.0001
0.0001

0.0005
0.001
0.001
0.001
0.003
0.003
0.0005
0.0005
0.0005
0.0005
0.0005
0.0005
0.0005
0.0005

0.001
0.001
0.001
0.001
0.01
0.01
0.001
0.001
0.001
0.005
0.001
0.001
0.0005
0.03

Non-Rare Earth Impurities

% max.

% max.

% max.

% max.

Fe2O3
SiO2
CaO
CuO
PbO
NiO
Cl-

0.0002
0.0015
0.0015
0.0001
0.0001
0.0001
0.005

0.0003
0.005
0.005
0.0003
0.0003
0.0003
0.015

0.0005
0.005
0.005
0.0005
0.0005
0.001
0.02

0.002
0.015
0.015

Packing

In plastic woven bag with inner double PVC bags of 500kg net each, as well as according to customers' requirements.