Neodymium nitrate is widely used in the field of materials science because it exhibits many important properties in optical materials and ceramic materials. In optical materials, when it is used to prepare optical glass, it can change the optical properties of the glass and increase the refractive index, which is of great significance for the manufacture of high-quality optical lenses such as those for high-end camera lenses and telescope lenses. It can effectively reduce chromatic aberration and make the imaging clarity and resolution higher. Moreover, in the manufacturing of laser glass, when added as a dopant to the glass matrix, it can generate stimulated radiation and output laser with specific wavelengths, playing a crucial role in numerous application scenarios such as laser cutting, welding, medical treatment, and distance measurement. In terms of ceramic materials, for electronic ceramics, when manufacturing piezoelectric ceramics, it can improve the piezoelectric properties. By adjusting the crystal structure, it can enhance the piezoelectric effect and is used to manufacture electronic components such as ultrasonic transducers and pressure sensors, which are widely used in fields such as medical ultrasonic equipment and industrial automation detection. When manufacturing ceramic capacitors, it can increase the dielectric constant and stabilize the dielectric properties, ensuring the stable operation of electronic equipment.