Potassium tartrate is a chemical compound that appears as a white, crystalline powder. It is the potassium salt of tartaric acid, commonly found in grapes and used in winemaking. Potassium tartrate is often used in food products as a stabilizer and thickening agent. In addition to its culinary uses, potassium tartrate has applications in the pharmaceutical industry and can be found in some baking powders. It is also used in laboratories for various chemical analyses. Overall, potassium tartrate is a versatile compound with multiple uses across different fields.