Gadolinium Oxide

Gadolinium oxide (Gd2O3) is a white powder , soluble in acid but insoluble in water.

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Product Description

Gadolinium oxide mainly used in manufacturing of metal gadolinium, Gd-Fe alloy, memory storage single substrate, optical glass, solid state magnetic refrigerating medium, inhibitor, Sm-Co magnet additives, X-ray increased sense of screen, magnetic refrigerant, etc.

Brief Description of Gadolinium Oxide

Material name	Gadolinium oxide
Formula	Gd2O3
CAS No.	12064-62-9
EINECS NO.	235-060-9
Molecular Weight	362.5
Density	7.407g/cm3
Melting point	2330°C
Appearance	White powder
Purity/Specification (Gd2O3/REO)	99.9%-99.999%
Solubility	Insoluble in water, soluble in acid , absorb moisture and carbon dioxide in the air easily

Application

In the glass industry, gadolinium oxide is used exclusively as a component of high refractive index glass, and it is used together with lanthanum to help change the glass transition zone and improve the thermal stability of the glass.
In addition , gadolinium oxide in the nuclear industry is used for nuclear reactor control rods, neutron absorption materials in atomic reactors, magnetic bubble materials, sensitizing screen materials, etc.
Gadolinium oxide can also be used to make capacitors, X-ray intensification screens, and gadolinium gallium garnet materials.

Specification

Gadolinium Oxide Gd2O3
Purity		3N	3N5	4N	4N5	5N	5N5
TREO%min.		99	99	99	99	99	99
Gd₂O3/TREO%min.		99.9	99.95	99.99	99.995	99.999	99.9995
Rare earth impurities %max.	La₂O3	Total 0.1 (Sm203+ Eu2O3+ Tb407+ Dy203+Y203)	Total 0.05 (Sm203+ Eu2O3+ Tb407+ Dy203+ Y203)	Total 0.0040	0.0002	0.0001	0.0001
	CeO₂				0.0002	0.00005	0.00005
	Pr⁶011				0.0002	0.00005	0.00005
	Nd₂O3				0.0005	0.0001	0.0001
	Ho₂O3				0.0005	0.00005	0.00005
	Er²O3				0.0002	0.00005	0.00005
	Tm²O3				0.0002	0.00005	0.00005
	Yb₂O₃				0.0002	0.00005	0.00005
	Lu₂O3				0.0002	0.00005	0.00005
	Sm²O3			0.001	0.0005	0.00005	0.00005
	Eu²O3			0.0015	0.0005	0.0001	0.0001
	Tb₄07			0.0015	0.0005	0.0001	0.0001
	Dy2O3			0.001	0.0005	0.0001	0.0001
	Y2O₃			0.001	0.0005	0.0001	0.0001
Non rare earth impurities %max.	Fe₂O3	0.003	0.001	0.0005	0.0003	0.0002	0.0001
	SiO₂	0.006	0.005	0.005	0.003	0.002	0.001
	CaO	0.005	0.003	0.002	0.001	0.0005	0.0005
	CuO	一	0.001	0.0005	0.0003	0.0002	0.0001
	PbO		0.001	0.001	0.0005	0.0003	0.0002
	NiO	一	0.001	0.001	0.0005	0.0003	0.0001
	Al₂O3	0.04	0.03	0.01	0.01	0.005	0.001
	CI	0.05	0.03	0.02	0.015	0.01	0.01
LO.land Water %Max.		1	1	1	1	1	1
Remark:All the experimentis without water: