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1306-38-3 - Cerium oxide, 20% in H<sub>2</sub>O, colloidal dispersion - 12730 - Alfa Aesar

12730 Cerium oxide, 20% in H2O, colloidal dispersion

CAS Number

Size Price ($) Quantity Availability
100g 30.69
500g 99.19
2kg 260.59
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Cerium oxide, 20% in H2O, colloidal dispersion


Chemical Properties

CeO2 mol/mol 0.2 nitrate, pH 1.5
Formula Weight
0.01-0.02 Micron Particles, in Liquid
Immiscible with water.


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/TiO<sub>2</sub>.


Store in cool place. Incompatible with strong oxidizing agents.

Literature References

Lianli, L.; Yujing, L.; Tong, S.; Shuying, X.; Lili, W.; Li, Z. Hydrothermal Synthesis and UV Irradiation Shielding Performances of Nanometer Cerium (IV) Oxide Thin Films. Rare Met. Mater. Eng. 2015, 44 (1), 7-11.

Nguyen, D.; Visvanathan, C.; Jegatheesan, P. J. V. Effects of nano cerium (IV) oxide and zinc oxide particles on biogas production. Int. Biodeterior. Biodegrad. 2015, 102, 165-171.

GHS Hazard and Precautionary Statements

Hazard Statements: H314-H318-H303

Causes severe skin burns and eye damage. Causes serious eye damage. May be harmful if swallowed.

Precautionary Statements: P260-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310-P312-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician. Call a POISON CENTER or doctor/physician if you feel unwell. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Hazard Class
Packing Group
Harmonized Tariff Code


  • 40125

    Cerium oxide, 20% in H<sub>2</sub>O, colloidal dispersion
  • 11570

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  • 13446

    Calcium acetate monohydrate, ACS, 99.0% min
  • 14307

    Potassium permanganate, ACS, 99.0% min

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