Cerium

Cerium Oxide

CAS #: 1306-38-3

Molecular Formula: CeO2

EC No.: 215-150-4

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Product Details

Cerium oxide is an inorganic compound with the chemical formula CeO2, and it is a pale yellow or yellowish-brown powder. Density: 7.13g/cm ³, melting point: 2397℃, insoluble in water and alkali, slightly soluble in acid. At a temperature of 2000℃ and a pressure of 15MPa, cerium oxide can be reduced by hydrogen to obtain cerium trioxide. When the temperature is free between 2000℃ and the pressure is free at 5MPa, cerium oxide appears slightly yellow with a hint of red and even pink. Its performance includes being used as polishing materials, catalysts, catalyst carriers (additives), ultraviolet absorbers, fuel cell electrolytes, automotive exhaust absorbers, electronic ceramics, etc.

Applications:

Oxidant. Catalysts for organic reactions. Rare earth metal standard samples are used for steel analysis. REDOX titration analysis.
Decolorized glass.
Glass enamel shading agent.
Heat-resistant alloy.
It is used as an additive in the glass industry and a grinding material for plate glass.
It can also be used in cosmetics to resist ultraviolet rays. It has been expanded to include eyeglass and optical lenses, playing roles such as decolorization, clarification, and absorption of ultraviolet rays and electron rays in glass.

Product Series

PRODUCT	Product Code	SAFETY DATA	TECHNICAL DATA
Cerium Oxide 99.9%	ET-Ce-01	Cerium Oxide.pdf	Cerium Oxide CeO2 99.9%.pdf
Cerium Oxide 99.99%	ET-Ce-02		Cerium Oxide CeO2 99.99%.pdf
Cerium Oxide 99.999%	ET-Ce-03		Cerium Oxide CeO2 99.999%.pdf

Properties (Theoretical)

Molecular Formula	CeO₂
Molecular Weight	172.12
Appearance	Brown to yellow
Melting Point	2340°C (4240°F)
Boiling Point	3,500° C (6,332° F)
Density	7.6 g/cm3
Resistivity	4 10x Ω-m
Specific Heat	390 J/kg-K
Thermal Expansion	11 µm/mK
Young's Modulus	180 Pa
Precise Quality	171.895 g/mol
Single Isotope Mass	171.895264 Da

Health & Safety Information

Signal Word	N/A
Hazard Description	N/A
Dangerous Code	N/A
Preventive Instructions	P261-P262-P281-P302+P352-P303+P361+P353-P304 + P340-P305 + P351 + P338-P337+313
Flash Point	N/A
Risk Code	N/A
Safety Statement	N/A
RTECS Number	FK6310000
Transportation Information	NONH
WGK Germany	1

Packaging Specifications:

Standard packaging: 50 kg/drum, 500 kg/pallet, ton bags

Sample packaging: 500 g/bag, 1 kg/bottle

Cerium Oxide

The production method of cerium oxide is mainly oxalic acid precipitation, that is, taking cerium chloride or Cerium nitrates solution as raw material, adjusting the Ph value to 2 with oxalic acid, adding ammonia to precipitate Cerium oxalate, heating, maturing, separating, washing, drying at 110 ℃, and burning at 900~1000 ℃ to form cerium oxide.

The pure Cerium(IV) oxide is light yellow powder, and the impure Cerium(IV) oxide is beige or even pink to reddish brown (because it contains trace amounts of lanthanum, praseodymium, etc.). Almost insoluble in water and acids. Relative density 7.3. Melting point 1950 ℃, boiling point 3500 ℃.

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