A: Sodium percarbonate should be stored in a sealed container at room temperature. This chemical, similar to solid hydrogen peroxide, can be irritating and corrosive to the skin and especially to the eyes. Therefore, it is crucial to keep it out of the reach of children. Ingestion should be strictly avoided at all concentrations, and we recommend using gloves when handling it for cleaning applications. Sodium percarbonate is known to be human-safe and biodegradable, making it generally safe for disposal in the trash. However, we advise checking with local regulations to ensure proper disposal methods.