99.9% Pure Praseodymium Pellets Pr Metal Ingots CAS 7440-10-0

Errors can also be used to grind and polish materials. Pure cerium based polishing powder is usually light yellow, is a high-quality polishing material for optical glass, has replaced the low polishing efficiency and pollution of the production environment of iron oxide red powder. Neodymium oxide has little effect on polishing, but it has good polishing properties. The rare earth polishing powder containing the error will be reddish-brown, also known as red powder, but this red is not iron oxide red, but because of the oxidation error to make the rare earth polishing powder color darker. Praseodymium is also used as a new grinding material to make error-containing corundum grinding wheel. Compared with white corundum, efficiency and durability can be increased by more than 30% when grinding carbon structural steel, stainless steel, and superalloys. In order to reduce costs, the wrong neodymium concentrates were used as raw materials in the past, so it is called the wrong neodymium corundum grinding wheel.