Isopropylxanthic acid sodium salt is primarily used in the mining industry as a flotation agent. It aids in the separation of valuable minerals from ore by selectively attaching to the surface of the desired minerals, allowing them to be separated from waste materials. This compound is particularly effective in the flotation of sulfide ores, such as those containing copper, lead, and zinc. Its ability to enhance the hydrophobicity of mineral surfaces makes it a valuable component in the mineral processing industry. Additionally, it is sometimes utilized in chemical research for studying xanthate chemistry and its interactions with metal ions.