Cerium dioxide

1.1 Name

Cerium dioxide

1.2 Synonyms

CeO2 Cerdioxyd Ceria Ceric oxide Ceric oxide,ceria,Ceric oxide cericdioxide CERIUM (III) HYDROXIDE CERIUM (IV) HYDROXIDE CERIUM (IV) OXIDE HYDRATED CERIUM HYDROXIDE Cerium oxide Cerium(IV) oxide, dispersion Cerium(IV) Oxide Cerium, dioxo- Dioxocerium EINECS 215-150-4 MFCD00010927 molycomp5310 needlal needlalu15 needlalw15 nidoral opaline

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1.3 CAS No.

1306-38-3

1.4 CID

73963

1.5 EINECS(EC#)

215-150-4

1.6 Molecular Formula

CeO2 (isomer)

1.7 Inchi

InChI=1S/Ce.2O

1.8 InChkey

CETPSERCERDGAM-UHFFFAOYSA-N

1.9 Canonical Smiles

O=[Ce]=O

1.10 Isomers Smiles

O=[Ce]=O

2.1 Density

7.13g/mLat 25°C(lit.)

2.1 Melting point

2600°C

2.1 Boiling point

°Cat760mmHg

2.1 Flash Point

°C

2.1 Precise Quality

171.89500

2.1 PSA

34.14000

2.1 logP

-0.23760

2.1 Appearance

powder

2.2 Storage

Ambient temperatures.

2.3 Chemical Properties

Cerium dioxide is white to faintly yellow powder

2.4 Color/Form

Yellow

2.5 Odor

Odorless

2.6 Water Solubility

insoluble

2.7 Stability

Stable, but absorbs carbon dioxide from the air.

2.8 StorageTemp

Storage temperature: no restrictions.

3.1 Definition

Cerium dioxide is ametal oxide with formula CeO2. It is used for polishing glass, in coatings for infra-red filters to prevent reflection, and as an oxidant and catalyst in organic synthesis. Cerium dioxide Preparation Products And Raw materials Preparation Products

3.2 Usage

Cerium Oxide, also called Ceria, is widely applied in glass, ceramics and catalyst manufacturing. In glass industry, it is considered to be the most efficient glass polishing agent for precision optical polishing. It is also used to decolorize glass by keeping iron in its ferrous state. The ability of Cerium-doped glass to block out ultra violet light is utilized in the manufacturing of medical glassware and aerospace windows. It is also used to prevent polymers from darkening in sunlight and to suppress discoloration of television glass. It is applied to optical components to improve performance. High purity Ceria are also used in phosphors and dopant to crystal.

4.1 Hazard Codes

Xi

4.1 Risk Statements

R36

4.1 Safety Statements

S26-S24/25-S23

4.1 Hazard Class

8

4.1 RIDADR

NONH for all modes of transport

4.1 WGK Germany

3

4.1 RTECS

FK6310000

4.1 Toxicity

LD50 orally in rats: >5.0 g/kg (Lambert)

6.0 Chemical Properties

Cerium dioxide is white to faintly yellow powder

6.1 Physical properties

White powder in pure form; technical grade material is pale yellow; presence of other lanthanide elements as impurities may impart reddish color; cubic crystal; density 7.65 g/cm³; melts at 2,400°C; insoluble in water.

6.2 Uses

The additon of CeO₂ to CuO/TiO₂ increases specific surface area and inhibits sintering and pore size growth at high temperatures.

6.3 Usage

Cerium(IV) oxide is used in polishing and decolorizing glass, in heat-resistant alloy coatings, or infrared filters to prevent reflection, and as a catalyst for organic reactions.

6.4 Usage

The addition of CeO2 to CuO/TiO2 increases specific surface area and inhibits sintering and pore size growth at high temperatures. It is used as an additive in glass industry. Cerium dioxide is mainly used as such or in formulation as a high precision polishing agent for glass products, as catalyst or catalyst support. Polishing and decolorizing glass; opacifier in vitreous enamels and photochromic glasses; heat-resistant alloy coatings; as a cracking catalyst; as a catalyst for automobile emission control; in ceramic coatings; in phosphors; in cathodes; in capacitors; in semiconductors; in refractory oxides; gemstone polishing, as raw material for the production of glass and ceramics as well as additives in paints and varnishes?.

6.5 Usage

Cerium(IV) oxide is used in ceramics, and to polish glass and stones. It is applied as solid electrolyte in fuel cells. It can also be employed as a co-catalyst in many number of reactions. It is also used as an antioxidant, and to generate hydrogen through water splitting. It is used as a high-temperature hydrocarbon oxidation catalyst in self-cleaning ovens. It can be used in infrared filters, incandescent mantles, and sunscreens in combination with other materials. It finds use as a catalyst support, and to sensitize photosensitive glass.

6.6 Usage

Cerium oxide is used as a raw material for the production of glass and ceramics as well as additive in paints and varnishes?? It is also used in thermal spraying for welding and soldering products and for metal surface treatment products, in industrial polishing.

6.7 Usage

Cerium(IV) is suitable for use in ultrafine acid side polishing slurries.Cerium(IV) oxide is widely applied as a solid electrolyte in fuel cells. It is also used in ceramics and to polish glass and stones. It can also be employed as a co-catalyst in many reactions. It is also used as an antioxidant and to generate hydrogen through water splitting. It is used as a high-temperature hydrocarbon oxidation catalyst in self-cleaning ovens. It can be used in infrared filters, incandescent mantles and sunscreens in combination with other materials. It finds use as a catalyst support and to sensitize photosensitive glass. It is utilized to increase specific surface area and inhibit sintering as well as pore size growth at a high temperature by addition with CuO/TiO2.

6.8 Usage

Cerium(IV) oxide is widely applied as a solid electrolyte in fuel cells. It is also used in ceramics and to polish glass and stones. It can also be employed as a co-catalyst in many reactions. It is also used as an antioxidant and to generate hydrogen through water splitting. It is used as a high-temperature hydrocarbon oxidation catalyst in self-cleaning ovens. It can be used in infrared filters, incandescent mantles and sunscreens in combination with other materials. It finds use as a catalyst support and to sensitize photosensitive glass. It is utilized to increase specific surface area and inhibit sintering as well as pore size growth at a high temperature by addition with CuO/TiO2.

6.9 Usage

Cerium oxide water borne dispersion suitable for use in alkaline side polishing slurries. Submicron particle size makes for good removal rate with minimal subsurface damage

6.10 Usage

Polishing compound for IR crystal windows

6.11 Usage

Cerium(IV) oxide is used in ceramics and to polish glass and stones. It is applied as a solid electrolyte in fuel cells. It can also be employed as a co-catalyst in a number of reactions. It is also used as an antioxidant and to generate hydrogen through water splitting. It is used as a high-temperature hydrocarbon oxidation catalyst in self-cleaning ovens. It can be used in infrared filters, incandescent mantles and sunscreens in combination with other materials. It finds use as a catalyst support and to sensitize photosensitive glass.

6.12 Usage

Cerium(IV) oxide is used in ceramics, and to polish glass and stones. It is applied as a solid electrolyte in fuel cells. It can also be employed as a co-catalyst in a number of reactions. It is also used as an antioxidant and to generate hydrogen through water splitting. It is used as a high-temperature hydrocarbon oxidation catalyst in self-cleaning ovens. It can be used in infrared filters, incandescent mantles and sunscreens in combination with other materials. It finds use as a catalyst support and to sensitize photosensitive glass.

6.13 Merck

14,1989

6.14 Description

Cerium (IV) oxide (chemical formula: CeO2) is an oxide of the rare earth metal cerium. It appears as yellow-white powder. It is an important intermediate during the purification of the Ce element from the ores. It is mainly used in formulations in industry as a high-precision polishing agent for glass products. It can also be used in infrared filters, and used as an oxidizing compound in the catalytic converters as well as a replacement for thorium dioxide in the incandescent mantles. It can also be used as oxidation catalyst due to its interconvertibility, e.g. in oxidation of the natural gas in gas mantles. It can also be used as a mixed conductor due to its significant ionic and electronic conduction. It can be manufactured by the calcination of cerium oxalate or cerium hydroxide.

6.15 Uses

Cerium Oxide, also called Ceria, is widely applied in glass, ceramics and catalyst manufacturing. In glass industry, it is considered to be the most efficient glass polishing agent for precision optical polishing. It is also used to decolorize glass by keeping iron in its ferrous state. The ability of Cerium-doped glass to block out ultra violet light is utilized in the manufacturing of medical glassware and aerospace windows. It is also used to prevent polymers from darkening in sunlight and to suppress discoloration of television glass. It is applied to optical components to improve performance. High purity Ceria are also used in phosphors and dopant to crystal.

6.16 References

https://en.wikipedia.org/wiki/Cerium(IV)_oxide
http://172.16.24.174/www.solvay.com/en/binaries/Cerium_dioxide_GPS_rev0_Sept12_RHD-139543.pdf

6.17 Chemical Properties

white to faintly yellow powder

6.18 Definition

ChEBI: A metal oxide with formula CeO2. It is used for polishing glass, in coatings for infra-red filters to prevent reflection, and as an oxidant and catalyst in organic synthesis.

6.19 Uses

Polishing and decolorizing glass; as opacifier for vitreous enamels; in heat-resistant alloy coatings; in coatings for infrared filters to prevent reflection; in analysis for Ce and oxidimetry; as catalyst for organic reactions.

• Molecular Weight: 172.11500g/mol
• Molecular Formula: CeO₂
• Compound Is Canonicalized: True
• XLogP3-AA: null
• Exact Mass: 171.89528
• Monoisotopic Mass: 171.89528
• Complexity: 18.3
• Rotatable Bond Count: 0
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Topological Polar Surface Area: 34.1
• Heavy Atom Count: 3
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• Isotope Atom Count: 0
• Covalently-Bonded Unit Count: 1
• CACTVS Substructure Key Fingerprint: AAADcQAAMAAAAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==