CeOH3

CeOH3, or cerium(III) hydroxide, is an inorganic compound composed of cerium, oxygen, and hydrogen. Cerium is a lanthanide element, and CeOH3 is one of its hydroxide derivatives. This compound is typically formed when cerium salts react with a base, such as sodium hydroxide, under controlled conditions.

CeOH3 is a white or off-white solid that exhibits amphoteric properties, meaning it can react with both acids and bases. In acidic solutions, it dissolves to form cerium(III) ions, while in strongly basic conditions, it may form cerium(III) hydroxide complexes or cerium(III) oxyhydroxide species. Its solubility varies with pH, making it useful in certain chemical processes.

The compound is primarily studied for its role in catalysis, particularly in oxidation-reduction reactions. Due to its redox properties, cerium(III) hydroxide can participate in heterogeneous catalysis, where it facilitates reactions on solid surfaces. It is also explored in environmental applications, such as wastewater treatment, where cerium-based materials help remove contaminants like heavy metals or organic pollutants.

CeOH3 is synthesized through precipitation methods, often by adding a hydroxide solution to a cerium salt solution. The resulting precipitate is then washed and dried. Its stability depends on conditions such as temperature and pH, as it can decompose or transform into other cerium oxyhydroxide phases under certain circumstances.

While CeOH3 itself is not commonly encountered in industrial applications, it serves as a precursor to other cerium-based materials, including cerium oxide (CeO2), which has widespread use in polishing, catalysis, and energy storage technologies. Research into cerium hydroxide continues due to its potential in advanced materials and sustainable chemical processes.