Cerium dioxide CAS 1306-38-3 ceriumoxide ceo2 olycomp5310 needlal needlalu15

Place of Origin: Sichuan,China (Mainland)
Brand Name: MOSINTER
Brand: MOSINTER
CAS: 1306-38-3
Appearance: Yellow or brown powder
Molecular weight: 172.11
TREO: ≥99%
Molecular Formula: CeO2
Purity: 99%~99.9999%
Density: 7.13 g/mL at 25 °C(lit.)
Melting point: 2600°C
Alias: needlal

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Product Description

Payment & Shipping Terms Supply Capacity
Payment Terms:L/C, D/A, T/TProduction Capacity:50T/Year
Min. Order:15 KilogramPacking:According to customer...
Means of Transport:Ocean, Air, LandDelivery Date:with 7 days

Cerium dioxide  (CAS: 1306-38-3)


Purity:﹤98%

total   97%

RE Impurities(ppm)

Non-RE Impurities(ppm)

La2O3                 30

Fe2O3      150

Pr6O11                80

SiO2       100

Nd2O3                 50

CaO        100

Sm2O3                 50

Al2O3     ﹤100

Eu2O3                 10


Gd2O3                 10


Tb4O7                 5


Dy2O3                 7


Ho2O3                ﹤2


Er2O3                ﹤2


Tm2O3                ﹤2 


Yb2O3                ﹤2


Lu2O3                ﹤2


Y2O3                 50



Purity:﹤99.5%

Total  98.90%

RE Impurities(ppm)

Non-RE Impurities(ppm)

La2O3               27

Fe2O3            90

Pr6O11              60

SiO2             80

Nd2O3               20

CaO             100

Sm2O3               20

Al2O3       ﹤100

Eu2O3               8


Gd2O3               6


Tb4O7               1


Dy2O3               2


Ho2O3               ﹤1


Er2O3               ﹤1


Tm2O3               ﹤1 


Yb2O3               ﹤1


Lu2O3               ﹤1


Y2O3                 10




Purity:﹤99.95%

Total  99.10%

RE Impurities(ppm)

Non-RE Impurities(ppm)

La2O3                 24

Fe2O3           40

Pr6O11                70

SiO2            40

Nd2O3                 50

CaO             90

Sm2O3                 10

Al2O3       ﹤100

Eu2O3                 1


Gd2O3                 1


Tb4O7                 1


Dy2O3                 2


Ho2O3                ﹤1


Er2O3                ﹤1


Tm2O3                ﹤1 


Yb2O3                ﹤1


Lu2O3                ﹤1


Y2O3                  3



TREO≥99.995%

Main Component:TREO≥99.9 %  

RE Impurities(ppm)

Non-RE Impurities(ppm)

La2O3                 20

Fe2O3            10

Pr6O11                50

SiO2             10

Nd2O3                 10

CaO            20

Sm2O3                 10

Al2O3           ﹤20

Eu2O3                 1


Gd2O3                 1


Tb4O7                 1


Dy2O3                 1


Ho2O3                ﹤1


Er2O3                ﹤1


Tm2O3                ﹤1 


Yb2O3                ﹤1


Lu2O3                 ﹤1


Y2O3                   2


Cerium(IV) oxide, also known as ceric oxide, ceria, cerium oxide or cerium dioxide, is an oxide of the rare earth metal cerium. It is a pale yellow-white powder with the chemical formula CeO2.

Cerium(IV) oxide is formed by the calcination of cerium oxalate or cerium hydroxide.

Powdered ceria is slightly hygroscopic and will also absorb a small amount of carbon dioxide from the atmosphere.Cerium also forms cerium(III) oxide, Ce2O3, which is more stable at standard conditions for temperature and pressure than CeO2.

Structure

Cerium oxide has the fluorite structure, space group Fm3m, #225 containing 8 coordinate Ce4+ and 4 coordinate O2– . At high temperatures it can be reduced to a non-stoichiometric, anion deficient form that retains the fluorite lattice, CeO(2-x) where 0 < x < 0.28 [4] The non stoichiometric form has a blue to black color, and exhibits both ionic and electronic conduction with ionic being the most significant at temperatures > 500 °C.

Applications

Cerium(IV) oxide is used in ceramics, to sensitize photosensitive glass, as a catalyst and as a catalyst support, to polish glass and stones, in lapidaryas an alternative to "jeweller's rouge". It is also known as "optician's rouge".

It is also used in the walls of self-cleaning ovens as a hydrocarbon catalyst during the high-temperature cleaning process.

While it is transparent for visible light, it absorbs ultraviolet radiation strongly, so it is a prospective replacement of zinc oxide and titanium dioxide in sunscreens, as it has lower photocatalytic activity. However, its thermal catalytic properties have to be decreased by coating the particles with amorphous silica or boron nitride. The use of these nanoparticles, which can penetrate the body and reach internal organs, has been criticized as unsafe.

Cerium oxide has found use in infrared filters, as an oxidizing species in catalytic converters and as a replacement for thorium dioxide in incandescent mantles


Category: Rare Earth and Rare Metals


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