Rubidium carbonate is primarily used in the production of special glass and optical materials, where it enhances properties like refractive index and durability. It is also employed in the synthesis of other rubidium compounds, which find applications in various chemical processes. In the field of electronics, it serves as a component in the manufacture of photocells and other devices that require precise optical characteristics. Additionally, it is utilized in research and development for its role in catalytic reactions and as a precursor in the preparation of materials with specific electronic or magnetic properties.