Sodium Citrate is the sodium salt of citric acid, commonly occurring as white crystalline granules or powder. It exists primarily as the dihydrate form (Na3C6H5O7·2H2O) with excellent water solubility and a mildly saline, tart flavor. This multifunctional compound serves as an effective buffering agent, sequestrant, and emulsifier with GRAS (Generally Recognized As Safe) status. Its unique ability to control pH while chelating metal ions makes it indispensable in food processing, pharmaceuticals, and industrial applications.