Frothers are essential reagents in the froth flotation process used for mineral separation in the mining industry. They are surface-active compounds that create a stable froth layer on the surface of the flotation slurry, facilitating the separation of hydrophobic mineral particles from hydrophilic gangue materials. Frothers reduce surface tension, promote bubble dispersion, and stabilize the froth. Common types include alcohols, polyglycols, polyglycol ethers, and natural products. The choice of frother depends on factors such as mineral type, pH, other reagents, and desired froth characteristics. Proper handling and storage are crucial for effectiveness and safety. Green frothers based on natural products are being developed to reduce environmental impact while maintaining performance.