Cerium is a rare earth metal that is widely used for many applications. It is found in different minerals, including monazite, hydroxlbastnasite, rhabdophane, and allanite. Some of its uses include chemical mechanical planarization, polishing, coatings, and heat-resistant alloy coatings.
Cerium powder is available as powder, rod, ingot, and granules. The properties of cerium vary between these materials. Generally, it has a sulfate and oxide form. These forms serve various industrial and medical purposes.
In the fuel cell industry, cerium powder plays an important role. It helps remove ultrafine diesel particle emissions. It also serves as an antioxidant and anti-toxicant.
Moreover, cerium can be used as an abrasive. When mixed with water, it can be used as an effective polishing agent. This powder is ideal for removing light surface scratches from glass.
Aside from being an excellent polishing agent, cerium oxide can be used as a buffer layer. Since it is insoluble in dilute acid, it is a good choice for a variety of coatings.
This rare earth element can be toxic by inhalation. Therefore, you should exercise extra caution while handling it. Also, it may burn eyes and mucous membranes. If you do have contact with this powder, use a fire extinguisher, and be sure to wear protective clothing.
Cerium oxide can be used in various coatings, such as ceramics, semiconductor wafers, fuel cells, and electrode materials. It is also useful for shielding. For example, tomato fruits and citric acid can be exposed to uncoated cerium oxide nanoparticles.