Used in specialty pyrotechnic compositions where a high-potassium-free oxidizer is needed, rubidium perchlorate serves as a source of oxygen in certain flares and fireworks to produce intense red-violet colored flames due to the rubidium ion. It finds niche applications in research settings for the preparation of other rubidium compounds and in some electrochemical systems. Due to its sensitivity and cost, it is not used in large-scale industrial applications and is mostly limited to laboratory and experimental formulations.