Cerium oxide

Cerium oxide (CeO2) is an inorganic compound with light yellow or yellow brown powder, slightly soluble in acid and ethanol but insoluble in water.

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Product Description

Its performance includes polishing materials, catalysts and catalyst carriers or additives, ultraviolet absorbers, fuel cell electrolytes, automotive exhaust absorbers, ceramics, etc.

Brief Description of Cerium oxide

Material name	Cerium oxide
Formula	CeO2
CAS No.	1306-38-3
EINECS NO.	215-150-4
Molecular Weight	172.12
Density	7.13 g/cm3
Melting point	2600°C
Bolting point	3500°C
Appearance	Light yellow or yellow brown powder
Purity/Specification (CeO2/REO)	99%-99.999%
Solubility	insoluble in water, low solubility in acid

Application

Cerium oxide (CeO2) has various uses:

1. Catalysts and catalyst carriers: Cerium oxide can be used as a catalyst or catalyst carrier to participate in organic reactions and enhance catalytic activity.

2. Polishing material: Cerium oxide polishing powder is widely used in the polishing fields of glass. It has the advantages of strong cutting force, short polishing time, long service life, and high polishing accuracy.

3‌. UV Absorber: Nano cerium oxide can absorb ultraviolet rays and is used in sunscreen cosmetics, car glass, sunscreen fibers, coatings, plastics and other products to reduce the harm of ultraviolet rays to the human body.

4‌. Automotive exhaust absorbent: Adding nano cerium oxide to automotive exhaust purifiers can improve catalytic activity and reduce harmful gas emissions.

5. Fuel cell electrolyte: Cerium oxide can be used as a solid oxide fuel cell electrolyte to improve the performance of the electrolyte.

6. Electronic ceramics: Cerium oxide can be used to produce electronic ceramics such as rare earth luminescent materials and heat-resistant alloy materials.

Specification

Cerium Oxide CeO₂
Purity		5N5	5N	4N5	4N	3N	2N5	2N
REO%Min.		99	99	99	99	99	99	99
CeO2/REO Min.		99.9995	99.999	99.995	99.99	99.9	99.5	99
Rare earth impurities %Max.	La203	0.00005	0.0001	0.0005	0.0015	total	total	total
	Pr6011	0.00005	0.0001	0.0005	0.0015	0.1	0.5	1
	Nd2O3	0.00005	0.0001	0.0005	0.001
	Sm203	0.00005	0.0001	0.0005	0.001
	Y203	0.00003	0.0001	0.001	0.001
	Eu203	0.00003	0.00005	total	total	二	一	一
	Gd203	0.00003	0.00005	0.002	0.004
	Tb407	0.00003	0.00005
	Dv2O3	0.00003	0.00005
	Hoz03	0.00003	0.00005
	Er2O3	0.00003	0.0001
	Tm2O3	0.00003	0.00005
	Yb2O3	0.00003	0.00005
	Lu203	0.00003	0.00005
Non rare earth impurities %Max.	Fe203	0.0001	0.0002	0.0003	0.0005	0.001	0.005	0.01
	SiO2	0.001	0.003	0.005	0.005	0.01	0.05	0.05
	Cao	0.0005	0.001	0.005	0.005	0.01	0.05	0.2
	CuO	0.0001	0.0002	0.0002	0.0005	一	一	一
	NiO	0.0001	0.0002	0.0002	0.0005	一	一	一
	Pbo	0.0002	0.0005	0.0015	0.003	一	一	0.005
	CI	0.005	0.01	0.02	0.03	0.03	0.05	0.2
	Na20	0.0005	0.0005	0.001	0.001	一	一	0.1
	S	一	一	一	二	0.03	0.05	一
LO.I%Max.		1	1	1	1	2	3	4