CAS #: 7440-45-1
Linear Formula: Ce
EC No.: 231-154-9
Cerium oxide is an inorganic substance with the chemical formula CeO2 and a light yellow or yellowish brown powder. Density 7.13g/cm3, melting point 2397 ℃, insoluble in water and alkali, slightly soluble in acid. At a temperature of 2000 ℃ and a pressure of 15MPa, Cerium(III) oxide can be obtained by reducing cerium oxide with hydrogen. When the temperature is free at 2000 ℃ and the pressure is free at 5MPa, the cerium oxide is slightly yellow, slightly red, and pink. Its performance is to be used as polishing materials, catalysts, catalyst carriers (additives), ultraviolet absorbers, fuel cell electrolytes, automotive exhaust absorbers, Electroceramics, etc.
Application Area:
1. Oxidizing agents. Catalysts for Organic reaction. Use rare earth metal standard samples for steel analysis. Redox titration analysis.
2. Discolored glass.
3. Glass enamel sunshade.
4. Heat resistant alloy.
5. Used as an additive in the glass industry, as a grinding material for plate glass,
6. It can also play an anti ultraviolet role in cosmetics. It has been expanded to include glasses, optical lenses, decolorization, clarification, absorption of ultraviolet rays and electronic lines in the glass,
PRODUCT | Product Code | SAFETY DATA | TECHNICAL DATA |
Cerium Oxide 99.9% | ET-Ce-01 |
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Cerium Oxide 99.99% | ET-Ce-02 | ||
Cerium Oxide 99.999% |
ET-Ce-03 |
Compound Formula | CeO2 |
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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 |
Solubility in H2O | N/A |
Electrical Resistivity | 4 10x Ω-m |
Specific Heat | 390 J/kg-K |
Thermal Expansion | 11 µm/m-K |
Young's Modulus | 180 GPa |
Exact Mass | 171.895 g/mol |
Monoisotopic Mass | 171.895264 Da |
Signal Word | N/A |
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Hazard Statements | N/A |
Hazard Codes | N/A |
Precautionary Statements | P261-P262-P281-P302+P352-P303+P361+P353-P304 + P340-P305 + P351 + P338-P337+313 |
Flash Point | Not applicable |
Risk Codes | N/A |
Safety Statements | N/A |
RTECS Number | FK6310000 |
Transport Information | NONH |
WGK Germany | 1 |
Packaging Specifications
Finished packaging: 50 kg / barrel, 500 kg / tray, ton bag packaging
Sample packaging: 500 g / bag, 1 kg / bottle
About 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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